Dear reader! We are proud to be able to present you our new catalog.  We want to offer to 
you our knowledge and experience and thus contribute our share to the progress in the field 
of surge protection devices. The 

quality of our products

 has been recognized by a number 

of independent institutions which have 

rewarded

 our efforts with 

internationally 

recognized certificates, while we ourselves, strive to share our findings with professional 
associations and committees responsible for providing  users with safe, reliable and 
technologically advanced devices.

Our team is having over 20 years of experiences in lightning and surge protection. With 
our 

new series of Safetec and Power Quality products

 we became one of the 

leaders of 

the market

. Our mission is to offer  products which will help mankind to tame 

unpredictable possible damages caused by lightning and other overvoltages. Because of 
global warming process, our weather is changing and we have to face with more 
unpredictable storm situations. On the other hand, usage of the modern electrical and 
electronic equipment which is very sensitive to overvoltage, increases every day. 

In today's world of quick changing  technologies there are customers who create our policy 
and strategies, therefore,  marketing and sales departments are the one who have to support 
you! We offer wide range of products and total flexibility in product development. Our 
sales people will take care of all your needs so do not hesitate to contact us or our 
representatives (more on www.iskrazascite.si).

We easily keep pace with the world trends. Our main interests are 

safety, reliability and 

green technology

. We believe that in long-term  company will grow only on the basis of 

its own development. Therefore, unlimited attention is paid to innovations and new 
solutions are constantly encouraged. Our own R&D equipment and 

testing laboratory

 is 

enabling us to have fast and quality R&D processes. Because of that we can offer maximal 
flexibility and 

custom made solutions

.

The company is 

ISO 9001:2008

 certified. It is also certified to 

EN 13980 (94/9/EC 

ATEX)

 directives for intrinsic safety. These two international standards ensure that quality 

is part of each step from conceptual design to fitting. A number of our employees are 
technical experts to various committees developing international and local standards. Such 
involvement at the standards development level ensures that our products are always at the 
cutting edge of design and are in compliance with relevant certifications such as 

VDE, 

ÖVE, IEC, IECEx and UL

.

We are presented on the following Standards and Conformity Assessment Committees and 
their Working Groups:

Slovenian institute for standardization - SIST

SIST/TC STZ - Protection against effects of lightning

SIST/TC POD - Surge protection devices

SIST/TC PVS - Photovoltaic systems

European Committee for Electrotechnical Standardization - CENELEC

CLC/TC37A - Low voltage surge protective devices

WG1 and WG2

International Electrotechnical Committees - IEC

IEC TC81 - Lightning Protection. WG3 / WG9.

IEC SC37A - Surge Protective Devices. WG3 / WG4 / WG5.

IEC SC37B - Surge Protective Components.

Institute of Electrical and Electronic Engineers IEEE. SPDC 3.0 Surge Protective 
Devices Main Committee

WG3.6.4 LV Surge Protective Devices.

WG3.6.6 Low Voltage Circuit Protective Devices.

WG3.6.9 Low Voltage AC Power System SPDs - Line Side of the Service Equipment files.

WG3.6.10 Protection of Equipment connected to both ac power and communication 
circuits.

Underwriters Laboratories Inc

STP 1449 - Standards Technical Panel, Surge protective Devices.

Is your equipment at risk from surges? We can help!

Marketing and Sales

R & D

Quality

International standards participation

www.iskrazascite.si

IEC 364-4-41 (1992) designates low voltage distribution systems (networks) using 
two letters. The first letter details the grounding method used at the source (i.e. the 
secondary side of the power distribution transformer). The second letter details the 
grounding method used at the consumer's electrical installation for any conductive 
metal parts.

This method is used to define three basic systems:

TN system;

TT system;

IT system.

Where the abbreviations have the following meaning:

First letter - grounding method used at the source:

T     direct connection to ground of power supply source (star point of 

transformer secondary winding).

I      isolation of power supply source from ground, or connection via a high 

impedance.

Second letter - grounding method used at exposed conductive parts in the electrical 
installation:

T     exposed conductive parts are directly grounded independent of 

eventual existing grounded feeding point

N    exposed conductive parts are directly connected to grounding 

electrode (grounding resistor)

Subsequent prefixes may be used to describe the arrangement of neutral and 
protective conductors

S    neutral and protective conductor are separated

C    neutral and protective conductor are connected

Hence it follows that there are three possible TN systems: TN-S, TN-C and TN-C-S

Various protective devices may be installed on different distribution systems:

-  Over-current protective device (CB, Fuses etc),

-  Residual protective device (RCD, GFI)

-  Insulation monitoring device

-  Fault-voltage-operated protective device

It is important to ensure that an SPD is correctly selected and co-ordinated with the 
type of power system in use and any over-current protection devices installed. The 
following protective devices are encountered in the power systems shown:

TN-S system

TN-C system

TN-C-S system

TT system

IT system

TN System

-  Over-current protective device;

-  Residual current protective device

TT System

-  Over-current protective device;

-  Residual current protective device

-  Fault-voltage-operated protective device

IT System

-  Over-current protective device;

-  Residual current protective device

-  Insulation monitoring device

-  Fault-voltage-operated protective device

Common Power Distribution Systems (Europe)

Common Power Distribution Systems (Europe)

Description

Typical Supply Voltages

Source Configuration

Single-phase

120/240V

1Ph, W+G

(L-N / L-L)

Also known as Split phase or Edison system

3-phase  WYE  without neutral

480V

3Ph  Y, 4W+G

(L-L)

3-phase  WYE  with neutral

120/208V, 220/380V

3Ph  Y, 4W+G

230/400V, 240/415V

277/480V, 347/600V

(L-N / L-L)

Delta High Leg

120/240V

3Ph, 4W+G

(L-N / L-L)

Delta Ungrounded

240V, 480V

3Ph, 3W+G

( L-L)

Delta Grounded Corner

240V, 480V

3Ph, 3W+G

( L-L)

Single-phase

110V, 120V, 220V, 240V

1Ph, 2W+G

(L-N)

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Common Power Distribution Systems 

(North America, Asia, Latin America)

Common Power Distribution Systems 

(North America, Asia, Latin America)

Common Power Distribution Systems 
(North America, Asia, Latin America)

SPD Terminology

SPD Terminology

Surge Protective Device SPD

A device that is intended to limit transient overvoltages and divert surge currents. 
It contains

 

at least one nonlinear component.

 

Maximum continuous operating voltage

 

Uc

The maximum r.m.s. or d.c. voltage, which may be continuously applied to the 
SPD´s mode of protection.

Voltage protection level

 

Up

A parameter that characterizes the performance of the SPD in limiting the voltage 
across its

 

terminals, which is selected from a list of preferred values. This value 

shall be greater than

 

the highest value of the measured limiting voltages.

Residual voltage

 

Ures

The peak value of voltage that appears between the terminals of an SPD due to 
the passage

 

of discharge current

 

temporary overvoltage test value.

Impulse discharge current for class I test

 

Iimp

The crest value of discharge current through the SPD with specific charge 
transfered Q and specified energy W/R in the specified time.

Nominal discharge current In

The crest value of the current through the SPD having a current waveshape of 
8/20. This is

 

used for the classification of the SPD for class II test and also for 

preconditioning of the SPD

 

for class I and II tests.

Maximum discharge current I

 for class II test

max

Crest value of a current through the SPD having an 8/20 waveshape and 
magnitude according

 

to the test sequence of the class II operating duty test. I

 

max

is greater than I .

n

1.2/50 voltage impulse

Voltage impulse with a virtual front time of 1.2μs and a time to half-value of 50μs. 

8/20 current impulse

Current impulse with a virtual front time of 8μs and a time to half-value of 20μs. 

Combination wave

The combination wave is delivered by a generator that applies a 1.2/50 voltage 
impulse

 

across an open circuit and an 8/20 current impulse into a short circuit. 

The voltage, current

 

amplitude and waveforms that are delivered to the SPD are 

determined by the generator and

 

the impedance of the SPD to which the surge is 

applied. The

 

short-circuit current is symbolized by I . The open-circuit voltage is 

sc

symbolized by U .

oc

Degrees of protection provided by enclosure IP code

The extent of protection provided by an enclosure against access to hazardous 
parts, against

 

ingress of solid foreign objects and/or against ingress of water (see 

IEC 60529).

SPD disconnector

Device (internal and/or external) required for disconnecting an SPD from the 
power system.

Follow current If

Current supplied by the electrical power system and flowing through the SPD 
after a

 

discharge current impulse. The follow current is significantly different from 

the continuous

 

operating current I .

c

Back-up fuse

Overcurrent device (for example, circuit-breaker or fuse), which could be part of 
the electrical

 

installation located externally upstream of the SPD.

67

  1.  IEC 61643-1 Surge protective devices connected to low voltage power distribution systems - requirements and tests;

  2.  IEC 61643-12 Surge protective devices connected to low voltage power distribution systems - Selection and application principles;

  3.  IEC 61312-1 Protection against lightning electromagnetic impulse (LEMP) - Part 1: General principle

  4.  IEC 61312-2 Protection against lightning electromagnetic impulse (LEMP) - Part 2: Shielding of structures, bonding inside structures and earthing;

  5.  IEC 61312-3 Protection against lightning electromagnetic impulse (LEMP) - Part 3: Requirements of surge protection devices (SPDs);

  6.  IEC 61312-4 Protection against lightning electromagnetic impulse (LEMP) - Part 4: Protection of equipment in existing structures;

  7.  SIST EN 50614-3 Lightning Protection Components (LCP) - Part 3: Requirements for isolating spark gaps;

  8.  CEI IEC 60364-5-53 Electrical installation of buildings - Part 5-53: Selection and erection of electrical equipment - isolation, switching and control;

  9.  IEC PAS 60099-7 Surge arresters - Part 7: Glossary of terms and definitions from IEC publications 60099-1, 60099-4, 60099-6, 61643-1, 61643-12,  

61643-21, 61643-311, 61643-321, 61643-331 and 61643-341;

10.  IEC 61000-4-5: Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement techniques - Surge immunity test;

11.  IEC 62305-1 Protection against lightning - Part 1: General principles;

12.  IEC 62305-2 Protection against lightning - Part 2: Risk management;

13.  IEC 62305-3 Protection against lightning - Part 3: Physical damage to structures and life hazard;

14.  IEC 62305-4 Protection against lightning - Part 4: Electrical and electronic systems within structures;

15.  ITU-T K.20 Protection against interferences: Resistibility of telecommunication switching equipment to overvoltages and overcurrents;

16.  ITU-T K.21 Protection against interferences: Resistibility of subscriber's terminal to overvoltages and overcurrents;

17.  ITU-T K.44 Protection against interferences: Resistibility test for telecommunication equipment exposed to overvoltages and overcurrents - Basic 

Recommendation;

18.  IEC 61643-21 Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signaling networks - 

Performance requirements and testing methods;

19.  IEC 61643-22 Low-Voltage Surge Protective Devices - Part 22: Surge protection devices connected to telecommunications and signaling networks - 

Selection and application principles;

20.  UL 1449

Reference

Reference

www.iskrazascite.si

Typical component typologies used in SPDs

Typical component typologies used in SPDs

SPD comprising metal oxide varistor
- no problems with following current IF
- quick response time t  ( 25µs) means low 

A

residual voltage

- responds well to very low overvoltages
- high surge capacity, up to 50kA 10/350µs

≤

 

SPD comprising gas discharge tube
- high surge capacity 100kA 10/350µs
- no exhausting of ionised gases
- used in TT systems as galvanic separation 

between N-PE conductors

SPD comprising series arrangement of varistor 
and gas discharge tube
- no following current If
- quick response time t  (  25µs) means low 

A

residual voltage

- responds well to low overvoltages
- high surge capacity, up to 25kA 10/350µs

≤

Surge Protective Devices for Low Voltage Power Systems

QUICK PRODUCT SELECTION

SINGLE-POLE Surge Protective Devices, Type 1, 2

PROTEC BS(R) Series
Iimp: up to 100kA (10/350)

MULTI-POLE Surge Protective Devices, Type 1, 2, 3

PROBLOC BS(R) Series
Iimp = up to 50kA per pole(10/350)

MULTI-POLE Surge Protective Devices, Type 1, 2, 3

PROBLOC BS(R) Series
Iimp = 12.5kA per pole(10/350)

MULTI-POLE Surge Protective Devices, Type 1, 2

INPROTEC (R) Series
Iimp = 12.5kA per pole(10/350)

MULTI-POLE Surge Protective Devices, Type 1, 2

PROBLOC BSG(R) Series
Iimp = up tp 25kA per pole

 

(10/350)

Modular MULTI-POLE Surge Protective Devices, Type 1, 2, 3

PROTEC B2S(R) Series
Iimp = 12.5kA per pole

 

(10/350)

Modular MULTI-POLE Surge Protective Devices, Type 2

SAFETEC C(R) Series
Imax = 40kA per pole

 

(8/20)

Modular MULTI-POLE Surge Protective Devices, Type 2

PROTEC C(R) Series
Imax = 40kA per pole

 

(8/20)

Modular MULTI-POLE Surge Protective Devices, Type 2

PROTEC CM(R) Series
Imax = 40kA per pole

 

(8/20)

Modular SINGLE-POLE and MULTI-POLE Surge Protective Devices, Type 2

PROTEC CG(R) and PROTEC CMG(R) Series
Imax = up to 40kA per pole

 

(8/20)

Modular and Compact SINGLE-POLE and MULTI-POLE 

       

Surge Protective Devices, Type 3

PROTEC D(R), PROTEC DM(R), PROTEC DMG(R)  Series
MPE-ZE50, MPE-MINI, ZE 200 PS, VTC 10 Series
PROFILT D Series
Uoc/Isc = up to10kV/5kA per pole

 

(1.2/50, 8/20)

Surge Protective Devices for Overhead Power Lines

PROTEC A Series

Isolating Spark Gaps (ISG) for Equipotential Bonding

EPZ Series

MULTI-POLE Surge Protective Devices for Photovoltaic Systems

PV PROTEC and SAFETEC PV Series

MULTI-POLE Surge Protective Devices for Wind Generation Systems

WT PROTEC BS(R) and SAFETEC C(R) WT Series

Power Quality Surge Protection Solutions

Connection Accessories

Product Index

www.iskrazascite.si

CONTENTS

CONTENTS

2

7

17

27

35

41

51

59

67

81

87

93

103

109

113

119

125

137

143

Surge Protective Devices for Low Voltage Power Systems

QUICK PRODUCT SELECTION

QUICK PRODUCT SELECTION

Product Name

Page

Product Photo

Description

Category
IEC/EN/VDE

PROTEC BS(R) 50

PROTEC BS(R) 35

PROTEC BS(R) 25

PROTEC B2N(R) 12.5

PROTUBE BS 100

PROTUBE BS 50

PROTUBE B2N(R) 50

PROBLOC BS(R) 25 (2+0)

PROBLOC BS(R) 25 (1+1)

PROBLOC BS(R) 37.5 (3+0)

PROBLOC BS(R) 50 (4+0)

PROBLOC BS(R) 50 (3+1)

PROBLOC BSG(R) 100 (4+0)

PROBLOC BSG(R) 100 (3+1)

PROBLOC BSG(R) 100N (3+1)

PROBLOC BSG(R) 25

PROBLOC BSG(R) 50 (4+0)

PROBLOC BSG(R) 50 (3+1)

PROBLOC BSG(R) 12.5

PROTEC B2S(R) 12.5

PROTEC B2S(R) 25 (2+0)

PROTEC B2S(R) 25 (1+1)

PROTEC B2S(R) 37.5 (3+0)

PROTEC B2S(R) 50 (4+0)

PROTEC B2S(R) 50 (3+1)

SAFETEC C(R) 40

SAFETEC C(R) 80 (2+0)

SAFETEC C(R) 80 (1+1)

SAFETEC C(R) 120 (3+0)

SAFETEC C(R) 160 (4+0)

SAFETEC C(R) 160 (3+1)

INPROTEC VV(R) (2+0)

INPROTEC VG(R) (1+1)

INPROTEC VS(R) (1+0)

PROBLOC BS(R) 100 (1+1)

PROBLOC BS(R) 50 (2+0)

PROBLOC BS(R) 50 (1+1)

PROBLOC BS(R) 75 (3+0)

PROBLOC BS(R) 100 (4+0)

PROBLOC BS(R) 100 (3+1)

8

9

10

11

12

12

13

18

19

20

21

22

23

28

29

30

31

32

36

37

38

42

43

44

45

46

47

48

52

53

54

55

56

57

60

61

62

63

64

65

SINGLE-POLE
Surge Protective Devices
I

: up to 100kA (10/350)

imp

MULTI-POLE
Surge Protective Devices
I

: up to 50kA per pole (10/350)

imp

MULTI-POLE
Surge Protective Devices
I

: 12.5kA per pole (10/350)

imp

MULTI-POLE
Surge Protective Devices
I

: 12.5kA per pole (10/350)

imp

SINGLE & MULTI-POLE
Surge Protective Devices
I

: up to 25kA per pole (10/350)

imp

SINGLE & MULTI-POLE
Surge Protective Devices
I

: 12.5kA per pole (10/350)

imp

SINGLE & MULTI-POLE
Surge Protective Devices
I

: 40kA per pole (8/20)

max

Class I, II
Type 1, 2
B+C

Class I, II
Type 1, 2
B+C

Class I, II, III
Type 1, 2, 3
B+C+D

Class II
Type 2
C

Class I, II, III
Type 1, 2, 3
B+C+D

2

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Surge Protective Devices for Low Voltage Power Systems

TECHNICAL CHARACTERISTICS

Network Type

Remote

Signalization

of Failure

Housing

Uc

(V )

AC

I

per pole

imp 

(kA) 

(10/350)

U

/I

per pole

oc sc 

(kV/kA) 

(1.2/50, 8/20)

I

per pole

max 

(kA) 

(8/20)

TN-C TN-S

TT

IT

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Compact

Compact

Compact

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

255

255

255

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 320

150, 320

150, 320

150, 320

150, 320

150, 320

150, 320

50

35

25

12.5

100

50

50

50/100 

(L-N/N/PE)

25

25/50 

(L-N/N/PE)

25

25

25/100 

(L-N/N/PE)

12.5

12.5/50 

(L-N/N/PE)

12.5

12.5

12.5/50 

(L-N/N/PE)

12.5

12.5

12.5/50 

(L-N/N/PE)

12.5

12.5

12.5/50 

(L-N/N/PE)

12.5

12.5/50 

(L-N/N/PE)

12.5

25

25/100 

(L-N/N/PE)

25/50 

(L-N/N/PE)

25

12.5

12.5/50 

(L-N/N/PE)

12.5

100

100

100

50

100

100

100

100

100/100 

(L-N/N/PE)

100/100 

(L-N/N/PE)

100

50

50/100 

(L-N/N/PE)

50

100/100 

(L-N/N/PE)

100

100/100 

(L-N/N/PE)

100

100

100/100 

(L-N/N/PE)

50

50/100 

(L-N/N/PE)

50

50

50/100 

(L-N/N/PE)

60

60

60/50 

(L-N/N/PE)

60

60

60/50 

(L-N/N/PE)

40

40

40

40

40

40

80

80/80 

(L-N/N/PE)

80

10/5

10/5

10/5

10/5

10/5

10/5

10/5

10/5

10/5

10/5

10/5

10/5

* Other voltages on customer request

3

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Surge Protective Devices for Low Voltage Power Systems

QUICK PRODUCT SELECTION

QUICK PRODUCT SELECTION

Product Name

Page

Product Photo

Description

Category
IEC/EN/VDE

SINGLE & MULTI-POLE
Surge Protective Devices
I

: up to 40kA per pole (8/20)

max

Modular MULTI-POLE
Surge Protective Devices
I

: 40kA per pole (8/20)

max

Modular SINGLE & MULTI-POLE
Surge Protective Devices
I

: up to 40kA per pole (8/20)

max

Modular and Compact
SINGLE & MULTI-POLE
Surge Protective Devices
Uoc/Isc: up to 10kV/5kA per pole 
(1.2/50, 8/20)

SINGLE-POLE
Surge Protective Devices for Overhead 
power Lines
I

: up to 40kA (8/20)

max

Isolation Spark Gap for
Equipotential Bonding
I

: 100kA (8/20)

max

MULTI-POLE
Surge Protective Devices for 
Photovoltaic Systems
I

: 12.5kA per pole (10/350)

imp

I

: 40kA per pole (8/20)

max

SINGLE & MULTI-POLE
Surge Protective Devices for Wind 
Generation Systems
I

: up to 25kA (10/350)

imp

I

: 40kA (8/20)

max

Class II
Type 2
C

Class III
Type 3
D

Class II
Type 2
A

ISG

Class I, II; II
Type 1, 2; 2
B+C; C

Class I, II; II
Type 1, 2; 2
B+C; C

PROTEC C(R) 40

PROTUBE C 40

PROTEC C(R) 80 (2+0)

PROTEC C(R) 80 (1+1)

PROTEC C(R) 120 (3+0)

PROTEC C(R) 160 (4+0)

PROTEC C(R) 160 (3+1)

PROTEC C(R) 20

PROTEC CN(R) 40

PROTEC CN(R) 20

PROTUBE CN 40

PROTEC CM(R) 80 (2+0)

PROTEC CM(R) 80 (1+1)

PROTEC CM(R) 80A (1+1)

PROTEC CG(R) 40

PROTEC CG(R) 20

PROTEC CMG(R) 40 (2+0)

PROTEC D(R) 10

PROTEC DM(R) 20 (2+0)

PROTEC DMG(R) 20 (2+0)

MPE-ZE50

MPE-MINI

ZE 200 PS

VTC 10

PROFILT D

PROTEC AQ 40

PROTEC AQS 40

PROTEC A 30

PROTEC AQ 25

PV PROTEC BS(R) 12.5

SAFETEC C(R) 40 PV

PV PROTEC C(R) 40

WT PROTEC BS(R) 25

WT PROTEC BS(R) 12.5

SAFETEC C(R) 750 (3+0) WT

EPZ 100

EPZ 100 Ex

68

69

70

71

72

73

74

76

77

78

79

82

83

84

88

89

91

94

95

96

97

98

99

100

101

104

105

106

107

110

111

114

115

116

119

120

121

4

www.iskrazascite.si

Surge Protective Devices for Low Voltage Power Systems

TECHNICAL CHARACTERISTICS

Network Type

Remote

Signalization

of Failure

Housing

Uc

(V )

AC

I

per pole

imp 

(kA) 

(10/350)

U

/I

per pole

oc sc 

(kV/kA) 

(1.2/50, 8/20)

I

per pole

max 

(kA) 

(8/20)

TN-C TN-S

TT

IT

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Compact

Compact

Compact

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Modular

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Compact

Modular

Modular

Compact

Compact

Modular

75, 150, 275, 320, 385, 440 *

255

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

255

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

320

320

275

275

150, 275, 320, 440

275

150, 275, 385

75, 275, 385

150, 275

150, 275, 320, 385, 440 *

150, 275, 320, 440 *

150, 275, 320, 385, 440 *

150, 275, 320, 385, 440 *

550, 1000

75, 300, 600, 1000, 1200

100, 550, 1000

750

750

750

350, 500

350, 500

40

40

40

40/40 

(L-N/N/PE)

40

40

40/40 

(L-N/N/PE)

20

40

20

40

40

40/40 

(L-N/N/PE)

40/40 

(L-N/N/PE)

10

10

10

5

10

40

20

20

40

40

30

25

100

100

40

40, 40, 40, 25, 40

40

80

40

25

10/5

10/5

10/5

5/2.5

6/3

6/3

10/5

6/3

* Other voltages on customer request

12.5

25

12.5

5

www.iskrazascite.si

6

www.iskrazascite.si

7

The PROTEC BS and PROTUBE BS series of over-voltage surge 
protective devices have been developed to protect against partial direct 
and indirect lightning discharges and are intended to provide protection 
in zones 0  - 1 per IEC 62305.

A

PROTEC BS consists of two separate, high performance varistor blocks, 
each with a separate disconnection device.

PROTUBE BS consists of a high energy encapsulated air gap device 
and is used to provide galvanic separation between the N and PE 
conductors in a 1+1 or 3+1 power distribution system (TT single phase 
or three phase networks).

The PROTEC B2N series of overvoltage surge protective devices has 
been developed to protect against partial direct and indirect lightning 
discharges and is intended to provide protection in zones 0  - 1, per IEC 

A

62305. The enclosure housing is a compact design.

 

PROTEC B2N 

consists of a high performance varistor block with thermal disconnection 
device.

PROTUBE B2N consists of a high energy encapsulated air gap device 
and is used to provide galvanic separation between the N and PE 
conductors in a 1+1 or 3+1 power distribution system (TT single phase 
or three phase networks).

PROTEC B2N(R) 12.5
PROTUBE B2N(R) 50

PROTEC B2N(R) 12.5
PROTUBE B2N(R) 50

PROTEC BS(R) 50
PROTEC BS(R) 35
PROTEC BS(R) 25
PROTUBE BS 100
PROTUBE BS 50

PROTEC BS(R) 50
PROTEC BS(R) 35
PROTEC BS(R) 25
PROTUBE BS 100
PROTUBE BS 50

Category IEC / EN / VDE:

Class I, II / Type 1, 2 / B+ C

Location of use:

Main distribution boards 

Protection modes:

L/N-PE, L-PEN

Protective elements:

High Energy MOV and GDT

High surge discharge ratings:

I

 = up to 50kA

imp

Internal protection and safety:

Separate thermal disconnector 
for each MOV block

Status indication:

Mechanical flag + remote 
contacts (R)

Dimensions DIN 43880:

1TE ,2TE, 3TE, 4TE

www.iskrazascite.si

SINGLE-POLE Surge Protective Devices

SINGLE-POLE Surge Protective Devices

SINGLE-POLE Surge Protective Devices

Class I, II  Single-pole Surge Protective Device

   I

 = 50kA (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TN-S, TN-C, IT

Protection modes: 

L/N - PE, L- PEN

Protective element:

High Energy MOV

High surge discharge rating:

I

=  50kA

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA

max

Housing:

Compact design

Complies with:

IEC-61643-1

PROTEC BS(R) 50

PROTEC BS(R) 50

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

imp

res

Follow current

I  

f

Response time

tA

Thermal protection
Back-up fuse (if mains > 500A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROTEC BS 50/xxx)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROTEC BSR 50/xxx - with remote contacts

Packaging dimensions (single unit)

Technical data

   150/200V

     

  

    

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

25kA

100kA

50kA

625kJ/

Ω

25As

 < 0.6kV                   < 1.2kV                  < 1.2kV                   < 1.6kV                   < 1.9kV
 < 0.7kV                   < 1.2kV                  < 1.2kV                   < 1.5kV                   < 1.8kV

NO

< 25ns

YES

500A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE                         2TE                         2TE                         4TE                        4TE

266g                       374g                       374g                       438g                       458g

502 314                  502 315                  502 316                  502 296                  502 297

271g                       379g                       379g                       443g                       463g

502 317                  502 318                  502 319                  502 298                  502 299

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

                  109 x 76.5 x 41.5mm                                             109 x 76.5 x 78mm

PROTEC BS(R) 50/xxx

150                   275                    320                    385                    440

Dimensions

Connection diagram

8

www.iskrazascite.si

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TN-S, TN-C, IT

Protection modes: 

L/N - PE, L- PEN

Protective element:

High Energy MOV

High surge discharge rating:

I

=  35kA

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA

max

Housing:

Compact design

Complies with:

IEC-61643-1

PROTEC BS(R) 35

PROTEC BS(R) 35

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

imp

res

Follow current

I  

f

Response time

tA

Thermal protection
Back-up fuse (if mains > 315A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROTEC BS 35/xxx

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROTEC BSR 35/xxx - with remote contacts

Packaging dimensions (single unit)

Technical data

    150/200V

     

  

    

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

25kA

100kA

35kA

306kJ/

Ω

17.5As

 < 0.6kV                   < 1.2kV                  < 1.2kV                   < 1.6kV                   < 1.9kV
 < 0.7kV                   < 1.2kV                  < 1.2kV                   < 1.5kV                   < 1.8kV

NO

< 25ns

YES

315A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE                         2TE                         2TE                         3TE                        3TE

254g                       336g                       336g                       385g                       415g

502 320                  502 321                  502 322                  502 306                  502 307

259g                       341g                       341g                       390g                       420g

502 323                  502 324                  502 325                  502 308                  502 309

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

                  109 x 76.5 x 41.5mm                                             109 x 76.5 x 60mm

PROTEC BS(R) 35/xxx

150                   275                    320                    385                    440

Class I, II  Single-pole Surge Protective Device

   I

 = 35kA (10/350)

imp

9

Dimensions

Connection diagram

www.iskrazascite.si

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TN-S, TN-C, IT

Protection modes: 

L/N - PE, L- PEN

Protective element:

High Energy MOV

High surge discharge rating:

I

=  25kA

imp

MOV max withstand capability 1 x 8/20:

I

= 120kA

max

Housing:

Compact design

Complies with:

IEC-61643-1

PROTEC BS(R) 25

PROTEC BS(R) 25

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

imp

res

Follow current

I  

f

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROTEC BS 25/xxx

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROTEC BSR 25/xxx - with remote contacts

Packaging dimensions (single unit)

Technical data

    150/200V

     

  

    

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

25kA

100kA

25kA

156kJ/

Ω

12.5As

 < 0.7kV                   < 1.3kV                  < 1.3kV                   < 1.7kV                   < 2.0kV
 < 0.7kV                   < 1.2kV                  < 1.2kV                   < 1.5kV                   < 1.8kV

NO

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE

200g                       252g                       252g                       268g                       284g

502 326                  502 327                  502 328                  502 329                  502 330

205g                       257g                       257g                       273g                       289g

502 331                  502 332                  502 333                  502 334                  502 335

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 41.5mm

PROTEC BS(R) 25/xxx

150                   275                    320                    385                    440

PE

L/N

14 11 12

RC

Class I, II  Single-pole Surge Protective Device

   I

 = 25kA (10/350)

imp

Dimensions

Connection diagram

10

www.iskrazascite.si

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TN-S, TN-C, IT

Protection modes: 

L/N - PE, L- PEN

Protective element:

High Energy MOV

High surge discharge rating:

I

=  12.5kA

imp

MOV max withstand capability 1 x 8/20:

I

= 80kA

max

Housing:

Compact design

Complies with:

IEC-61643-1

PROTEC B2N(R) 12.5

PROTEC B2N(R) 12.5

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

imp

res

Follow current

I  

f

Response time

tA

Thermal protection
Back-up fuse (if mains > 160A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROTEC B2N 12.5/xxx

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROTEC B2NR 12.5/xxx - with remote contacts

Packaging dimensions (single unit)

Technical data

   150/200V

     

  

    

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

20kA
50kA

12.5kA
39kJ/

Ω

6.25As

 < 0.8kV                   < 1.5kV                  < 1.5kV                   < 1.7kV                   < 2.0kV
 < 0.7kV                   < 1.2kV                  < 1.2kV                   < 1.4kV                   < 1.9kV

NO

< 25ns

YES

160A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 3.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

1TE

124g                       150g                       150g                       143g                       146g

507 501                  507 503                  507 505                  507 535                  507 507

129g                       155g                       155g                       148g                       151g

507 509                  507 511                  507 513                  507 537                  507 515

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

108 x 74 x 24mm

PROTEC B2N(R) 12.5/xxx

150                   275                    320                    385                    440

Class I, II  Single-pole Surge Protective Device

   I

 = 12.5kA (10/350)

imp

11

Dimensions

L/N

PE

12 11 14

RC

Connection diagram

www.iskrazascite.si

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

 TT

Protection modes: 

N - PE

Protective element:

High Energy GDT

High surge discharge rating:

I

=  100kA, 50kA

imp

GDT max withstand capability 1 x 8/20:

I

= 150kA

max

Housing:

Compact design

Complies with:

IEC-61643-1

PROTUBE BS

PROTUBE BS

Type

Electrical characteristics

Max. continuous operating voltage (AC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Specific energy
Charge
Protection level

Up 

Follow current

I  

f

Response time

tA

Mechanical characteristics
Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROTUBE BS

Packaging dimensions (single unit)

Technical data

255V

100kA                                                                       50kA

100kA

100kA                                                                       50kA

 2.5MJ/

Ω

                                                                   625kJ/

Ω

50As                                                                        25As

< 1.75kV                                                                   < 1.5kV

> 100ARMS

100ns

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE

238g                                                                        178g

503 044                                                                  503 042

109 x 76.5 x 41.5mm

PROTUBE BS 100

PROTUBE BS 50

N

N

N

PE

Class I, II  Single-pole N-PE Surge Protective Device

   I

 = 100kA, 50kA (10/350)

imp

Dimensions

Connection diagram

12

www.iskrazascite.si

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TT

Protection modes: 

N - PE

Protective element:

High Energy GDT

High surge discharge rating:

I

=  50kA

imp

GDT max withstand capability 1 x 8/20:

I

= 150kA

max

Housing:

Compact design

Complies with:

IEC-61643-1

PROTUBE B2N(R) 50

PROTUBE B2N(R) 50

Type

Electrical characteristics

Max. continuous operating voltage (AC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Specific energy
Charge
Protection level

Up 

Follow current

I  

f

Response time

tA

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROTUBE B2N 50

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROTUBE B2NR 50 - with remote contacts

Packaging dimensions (single unit)

Technical data

255V
50kA

100kA

50kA

625kJ/

Ω

25As

< 1.5kV

 > 100ARMS

100ns

o

o

- 40 C ….+ 80 C

max. 3.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

1TE

106g

507 572

111g

507 573

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

108 x 74 x 24mm

PROTUBE B2N(R) 50

Class I, II  Single-pole N-PE Surge Protective Device

   I

 = 50kA (10/350)

imp

13

Dimensions

N

PE

12 11 14

RC

Connection diagram

www.iskrazascite.si

PROTEC BS(R), PROTUBE BS - Connections

PROTEC BS(R), PROTUBE BS - Connections

F2

TN-S  Network - Single-phase (T-connection)

N

N

N

N

L

L

L

L

F1

PE

PE

PE

PE

EBB

TN-S  Network - Single-phase (V-connection)

F

EBB

L
N

L
N

F1

F2

EBB

TT  Network - Single-phase (T-connection)

L
N

L
N

F

PE

PE

EBB

TT  Network - Single-phase (V-connection)

TN-C  Network - Three-phase (T-connection)

L3

L3

L2

L2

L1

F1

F2

L1

PEN

PEN

EBB

TN-C  Network - Three-phase (V-connection)

L3

L3

L2

L2

L1

F

L1

PEN

PEN

EBB

14

www.iskrazascite.si

PROTEC BS(R), PROTUBE BS - Connections

PROTEC BS(R), PROTUBE BS - Connections

L3

L3

L3

N

N

N

L3

L3

L3

N

N

N

L2

L2

L2

L2

L2

L2

L1

L1

L1

F1

F1

F1

F2

F2

F2

L1

L1

L1

PE

PE

PE

EBB

EBB

EBB

TN-S  Network - Three-phase (T-connection)

IT  Network - Three-phase (T-connection)

TT  Network - Three-phase (T-connection)

L3

L3

L3

N

N

N

L3

L3

L3

N

N

N

L2

L2

L2

L2

L2

L2

L1

L1

L1

F

F

F

L1

L1

L1

PE

PE

PE

PE

PE

EBB

EBB

EBB

TN-S  Network - Three-phase (V-connection)

IT  Network - Three-phase (V-connection)

TT  Network - Three-phase (V-connection)

.

.    

U      1.1   U  

3

c

n

15

www.iskrazascite.si

PROTEC B2N(R), PROTUBE B2N(R) - Connections

PROTEC B2N(R), PROTUBE B2N(R) - Connections

L
N

L
N

F1

F2

PE

PE

EBB

TN-S Network - Single-phase

L
N

L
N

F1

PE

EBB

TT Network - Single-phase

L3

L3

L2

L2

L1

F1

F2

L1

PEN

PEN

EBB

TN-C Network - Three-phase

N

N

L3

L3

L2

L2

L1

F1

F2

L1

PE

PE

EBB

TN-S Network - Three-phase

L3

L2

L1

N

L3

L2

L1

N

F1

F2

EBB

PE

TT Network - Three-phase

F2

16

www.iskrazascite.si

17

PROBLOC BS(R) 100 (1+1)
PROBLOC BS(R)   50 (2+0)
PROBLOC BS(R)   50 (1+1)
PROBLOC BS(R)   75 (3+0)
PROBLOC BS(R) 100 (4+0)
PROBLOC BS(R) 100 (3+1)

PROBLOC BS(R) 100 (1+1)
PROBLOC BS(R)   50 (2+0)
PROBLOC BS(R)   50 (1+1)
PROBLOC BS(R)   75 (3+0)
PROBLOC BS(R) 100 (4+0)
PROBLOC BS(R) 100 (3+1)

Category IEC / EN / VDE:

Class I, II, III / Type 1, 2, 3 / B+C+D

Location of use:

Main distribution boards 

Protection modes:

L/N-PE, L-PEN

Protective elements:

High Energy MOV and GDT

High surge discharge ratings:

I

 = 50kA / pole, 25kA / pole

imp

Internal protection and safety:

Separate thermal disconnector 
for each MOV block

Status indication:

Mechanical flag + remote 
contacts (R)

Dimensions DIN 43880:

2TE, 3TE, 4TE, 5TE, 8TE

The PROBLOC BS series of over-voltage surge protective devices has 
been developed to protect against partial direct and indirect lightning 
discharges and is intended to provide protection in zones 0  - 1, per IEC 

A

62305.

PROBLOC BS(R) (1+1):  for TT single phase networks, where N to PE 
galvanic isolation is required.

PROBLOC BS(R) (2+0):  for TNS single phase networks with separate N 
and PE conductors.

PROBLOC BS(R) (3+0):  for TNC three phase networks with combined 
PEN conductor.

PROBLOC BS(R) (4+0):  for TNS three phase networks with separate N 
and PE conductors.

PROBLOC BS(R) (3+1):  for TT three phase networks, where N to PE 
galvanic isolation is required.

www.iskrazascite.si

MULTI-POLE Surge Protective Devices

MULTI-POLE Surge Protective Devices

MULTI-POLE Surge Protective Devices

Class I, II  Multi-pole Surge Protective Device

   I

 = 50kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TT

Protection modes: 

L - N , N - PE

Protective element:

High Energy MOV & GDT

High surge discharge rating:

I

 (MOV/GDT)=  50/100kA

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS(R) 100 (1+1)

PROBLOC BS(R) 100 (1+1)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

I  (L-N/N-PE)

n

Max. discharge current (8/20)

I

 (L-N/N-PE)

max

 

Impulse current (10/350)

I

 (L-N/N-PE)

imp

Impulse current (10/350)

I

 (L+N-PE)

imp

Specific energy

(L-N/N-PE)

Charge

(L-N/N-PE)

Protection level

U (L-N)

p 

U (N-PE)

p 

Residual voltage at I

U

 (L-N)

imp

res

Follow current

I  (N-PE)

f

Response time

t  (L-N/N-PE)

A

Thermal protection

(L-N/N-PE)

Back-up fuse (if mains > 250A)

(L-N/N-PE)

Short-circuit withstand current

(L-N/N-PE)

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 100/xxx (1+1)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSR 100/xxx (1+1) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

25/100kA

100kA/100kA

50kA/100kA

100kA       

625kJ/

Ω

/2.5MJ/

Ω

25As/50As   

 < 0.7kV                   < 1.4kV                  < 1.4kV                   < 1.8kV                   < 2.1kV

< 1.75kV

 < 0.7kV                   < 1.2kV                  < 1.2kV                   < 1.5kV                   < 1.8kV

> 100A

    

RMS

< 25ns/100ns

YES/-

250A gL/-

25kA/50Hz/-

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

4TE                         4TE                         4TE                         8TE                        8TE
430g                       540g                       540g                       654g                       698g

504 512                  504 513                  504 514                  504 396                  504 397

435g                       545g                       545g                       559g                       703g

504 515                  504 516                  504 517                  504 398                  504 399

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

                  109 x 76.5 x 78mm                                             109 x 76.5 x 148mm

PROBLOC BS(R) 100/xxx (1+1)

150                   275                    320                    385                    440

Connection diagram

18

www.iskrazascite.si

Class I, II  Multi-pole Surge Protective Device

   I

 = 25kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TN-S

Protection modes: 

L/N - PE

Protective element:

High Energy MOV

High surge discharge rating:

I

 =  25kA per pole

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS(R) 50 (2+0)

PROBLOC BS(R) 50 (2+0)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Impulse current (10/350)

I

(L+N-PE)

imp 

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

 

imp

res

Follow current

If

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 50/xxx (2+0)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSR 50/xxx (2+0) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

25kA per pole

100kA per pole

25kA per pole

50kA       

kJ/

Ω

 per pole

12.5As per pole   

 < 0.7kV                   < 1.4kV                  < 1.4kV                   < 1.8kV                   < 2.1kV
 < 0.7kV                   < 1.2kV                  < 1.2kV                   < 1.5kV                   < 1.8kV

NO     

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE                         2TE                         2TE                         4TE                        4TE

156

266g                       374g                       374g                       438g                       458g

504 435                  504 436                  504 437                  504 438                  504 439

271g                       379g                       379g                       443g                       463g

504 445                  504 446                  504 447                  504 448                  504 449

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

                  109 x 76.5 x 41.5mm                                             109 x 76.5 x 78mm

PROBLOC BS(R) 50/xxx (2+0)

150                   275                    320                    385                    440

19

Connection diagram

www.iskrazascite.si

Class I, II  Multi-pole Surge Protective Device

   I

 = 25kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TT

Protection modes: 

L - N , N - PE

Protective element:

High Energy MOV & GDT

High surge discharge rating:

I

 (MOV/GDT)=  25/50kA

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS(R) 50 (1+1)

PROBLOC BS(R) 50 (1+1)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

I  (L-N/N-PE)

n

Max. discharge current (8/20)

I

 (L-N/N-PE)

max

 

Impulse current (10/350)

I

 (L-N/N-PE)

imp

Impulse current (10/350)

I

 (L+N-PE)

imp

Specific energy

(L-N/N-PE)

Charge

(L-N/N-PE)

Protection level

U (L-N)

p 

U (N-PE)

p 

Residual voltage at I

U

 (L-N)

imp

res

Follow current

I  (N-PE)

f

Response time

t  (L-N/N-PE)

A

Thermal protection

(L-N/N-PE)

Back-up fuse (if mains > 250A)

(L-N/N-PE)

Short-circuit withstand current

(L-N/N-PE)

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 50/xxx (1+1)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSR 50/xxx (1+1) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

25/50kA

100kA/100kA

25kA/50kA

50kA       

kJ/

Ω

/625MJ/

Ω

12.5As/25As   

 < 0.8kV                   < 1.4kV                  < 1.4kV                   < 1.8kV                   < 2.1kV

< 1.5kV

 < 0.7kV                   < 1.2kV                  < 1.2kV                   < 1.5kV                   < 1.8kV

> 100A

    

RMS

< 25ns/100ns

YES/-

250A gL/-

25kA/50Hz/-

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

3TE

156

308g                       364g                       364g                       386g                       408g

504 454                  504 455                  504 456                  504 457                  504 458

313g                       369g                       369g                       391g                       414g

504 459                  504 460                  504 461                  504 462                  504 463

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

  109 x 76.5 x 60mm

PROBLOC BS(R) 50/xxx (1+1)

150                   275                    320                    385                    440

Connection diagram

20

www.iskrazascite.si

Class I, II, III  Multi-pole Surge Protective Device

         I

 = 25kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II, III / Type 1, 2, 3 / B+C+D

Location of use:  

Main distribution boards 

Connections:

TN - C

Protection modes: 

L - PEN

Protective element:

High Energy MOV

High surge discharge rating:

I

 =  25kA per pole

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS(R) 75 (3+0)

PROBLOC BS(R) 75 (3+0)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Combination wave (1.2/50, 8/20)

U

/I

oc sc

Impulse current (10/350)

Iimp

Impulse current (10/350)

I

(L1+L2+L3-PEN)

imp 

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

 

imp

res

Follow current

If

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 75/xxx (3+0)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSR 75/xxx (3+0) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

25kA per pole

100kA per pole

10kV/5kA

25kA per pole

75kA       

kJ/

Ω

 per pole

12.5As per pole   

 < 0.8kV                   < 1.4kV                  < 1.4kV                   < 1.9kV                   < 2.2kV
 < 0.8kV                   < 1.3kV                  < 1.3kV                   < 1.6kV                   < 1.9kV

NO     

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

3TE                         3TE                         3TE                         8TE                        8TE

156

400g                       570g                       570g                       726g                       792g

504 518                  504 519                  504 520                  504 464                  504 465

405g                       575g                       575g                       731g                       797g

504 521                  504 522                  504 523                  504 466                  504 467

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

                  109 x 76.5 x 60mm                                             109 x 76.5 x 148mm

PROBLOC BS(R) 75/xxx (3+0)

150                   275                    320                    385                    440

21

Connection diagram

www.iskrazascite.si

Category IEC / EN / VDE:  

Class I, II, III / Type 1, 2, 3 / B+C+D

Location of use:  

Main distribution boards 

Connections:

TN - S

Protection modes: 

L/N - PE

Protective element:

High Energy MOV

High surge discharge rating:

I

 =  25kA per pole

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS(R) 100 (4+0)

PROBLOC BS(R) 100 (4+0)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Combination wave (1.2/50, 8/20)

U

/I

oc sc

Impulse current (10/350)

Iimp

Impulse current (10/350)

I

(L1+L2+L3+N-PE)

imp 

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

 

imp

res

Follow current

If

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 100/xxx (4+0)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSR 100/xxx (4+0) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

25kA per pole

100kA per pole

10kV/5kA

25kA per pole

100kA       

kJ/

Ω

 per pole

12.5As per pole   

 < 0.8kV                   < 1.4kV                  < 1.4kV                   < 1.9kV                   < 2.2kV
 < 0.8kV                   < 1.3kV                  < 1.3kV                   < 1.6kV                   < 1.9kV

NO     

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

4TE                         4TE                         4TE                         8TE                        8TE

156

532g                       756g                       756g                       912g                       1000g

504 524                  504 525                  504 526                  504 468                  504 469

537g                       761g                       761g                       917g                       1005g

504 527                  504 528                  504 529                  504 470                  504 471

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

                  109 x 76.5 x 78mm                                             109 x 76.5 x 148mm

PROBLOC BS(R) 100/xxx (4+0)

150                   275                    320                    385                    440

Connection diagram

Class I, II, III  Multi-pole Surge Protective Device

         I

 = 25kA per pole (10/350)

imp

22

www.iskrazascite.si

Category IEC / EN / VDE:  

Class I, II, III / Type 1, 2, 3 / B+C+D

Location of use:  

Main distribution boards 

Connections:

TT

Protection modes: 

L - N , N - PE

Protective element:

High Energy MOV & GDT

High surge discharge rating:

I

 (MOV/GDT)=  25/100kA

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS(R) 100 (3+1)

PROBLOC BS(R) 100 (3+1)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

I  (L-N/N-PE)

n

Max. discharge current (8/20)

I

 (L-N/N-PE)

max

 

Combination wave (1.2/50, 8/20)

U

/I

oc sc

Impulse current (10/350)

I

 (L-N/N-PE)

imp

Impulse current (10/350)

I

 (L1+L2+L3+N-PE)

imp

Specific energy

(L-N/N-PE)

Charge

(L-N/N-PE)

Protection level

U (L-N)

p 

U (N-PE)

p 

Residual voltage at I

U

 (L-N)

imp

res

Follow current

I  (N-PE)

f

Response time

t  (L-N/N-PE)

A

Thermal protection

(L-N/N-PE)

Back-up fuse (if mains > 250A)

(L-N/N-PE)

Short-circuit withstand current

(L-N/N-PE)

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 100/xxx (3+1)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSR 100/xxx (3+1) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

25/100kA

100kA/100kA

10kV/5kA

25kA/100kA

100kA       

kJ/

Ω

/2.5MJ/

Ω

12.5As/50As   

 < 0.9kV                   < 1.4kV                  < 1.4kV                   < 1.9kV                   < 2.2kV

< 1.75kV

 < 0.8kV                   < 1.3kV                  < 1.3kV                   < 1.6kV                   < 1.9kV

> 100A

    

RMS

< 25ns/100ns

YES/-

250A gL/-

25kA/50Hz/-

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

5TE                         5TE                         5TE                         8TE                        8TE

156

568g                       728g                       728g                       834g                       900g

504 530                  504 531                  504 532                  504 472                  504 473

573g                       733g                       733g                       839g                       905g

504 533                  504 534                  504 535                  504 474                  504 475

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

                  109 x 76.5 x 96mm                                             109 x 76.5 x 148mm

PROBLOC BS(R) 100/xxx (3+1)

150                   275                    320                    385                    440

23

Connection diagram

Class I, II, III  Multi-pole Surge Protective Device

         I

 = 25kA per pole (10/350)

imp

www.iskrazascite.si

PROBLOC BS(R) - Connections

PROBLOC BS(R) - Connections

TT  Network - Single-phase (T-connection)

TT  Network - Single-phase (V-connection)

TN-S  Network - Single-phase (T-connection)

TN-S  Network - Single-phase (V-connection)

TT  Network - Single-phase (T-connection)

L

L

L

L

F1

F1

F2

N

N

N

N

PE

PE

EBB

EBB

L
N

L
N

F1

F2

PE

PE

PE

EBB

L

L

F1

N

N

PE

EBB

L

L

F1

F2

N

N

EBB

PE

24

www.iskrazascite.si

PROBLOC BS(R) - Connections

PROBLOC BS(R) - Connections

TN-C  Network - Three-phase (T-connection)

TN-C Network - Three-phase (V-connection)

TN-S  Network - Three-phase (T-connection)

TN-S  Network - Three-phase (V-connection)

TT  Network - Three-phase (T-connection)

TT  Network - Three-phase (V-connection)

25

L3

L3

L3

L3

L2

L2

L2

L2

L1

L1

F1

F1

F2

L1

L1

PEN

PEN

PEN

PEN

EBB

EBB

L3

L3

N

N

L3

L3

N

N

L2

L2

L2

L2

L1

L1

F1

F1

F2

L1

L1

PE

PE

PE

PE

EBB

EBB

L3
N

L3
N

L2

L2

L1

F1

L1

PE

EBB

L3

N

L2

F2

L1

EBB

PE

F1

L3
N

L2

L1

www.iskrazascite.si

26

www.iskrazascite.si

27

MULTI-POLE Surge Protective Devices

MULTI-POLE Surge Protective Devices

MULTI-POLE Surge Protective Devices

PROBLOC BS(R) 25 (2+0)
PROBLOC BS(R) 25 (1+1)
PROBLOC BS(R) 37.5 (3+0)
PROBLOC BS(R) 50 (4+0)
PROBLOC BS(R) 50 (3+1)

PROBLOC BS(R) 25 (2+0)
PROBLOC BS(R) 25 (1+1)
PROBLOC BS(R) 37.5 (3+0)
PROBLOC BS(R) 50 (4+0)
PROBLOC BS(R) 50 (3+1)

Category IEC / EN / VDE:

Class I, II, III / Type 1, 2, 3 / B+C+D

Location of use:

Main distribution boards 

Protection modes:

L/N-PE, L-PEN, L-N, N-PE

Protective elements:

High Energy MOV and GDT

High surge discharge ratings:

I

 = 12.5kA per pole

imp

Internal protection and safety:

Separate thermal disconnector 
for each MOV block

Status indication:

Mechanical flag + remote 
contacts (R)

Dimensions DIN 43880:

2TE, 3TE, 4TE

The PROBLOC BS series of over-voltage surge protective devices have 
been developed to protect against partial direct and indirect lightning 
discharges and are intended to provide protection in zones 0  - 1, per 

A

IEC 62305.

PROBLOC BS(R) (2+0):  for TNS single phase networks with separate 
N and PE conductors.

PROBLOC BS(R) (1+1):  for TT single phase networks, where N to PE 
galvanic isolation is required.

PROBLOC BS(R) (3+0):  for TNC three phase networks with combined 
PEN conductor.

PROBLOC BS(R) (4+0):  for TNS three phase networks with separate N 
and PE conductors.

PROBLOC BS(R) (3+1):  for TT three phase networks, where N to PE 
galvanic isolation is required.

www.iskrazascite.si

Class I, II  Multi-pole Surge Protective Device

   I

 = 12.5kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TN-S

Protection modes: 

L/N - PE

Protective element:

High Energy MOV

High surge discharge rating:

I

 =  12.5kA per pole

imp

MOV max withstand capability 1 x 8/20:

I

= 100kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS(R) 25 (2+0)

PROBLOC BS(R) 25 (2+0)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Impulse current (10/350)

I

(L+N-PE)

imp 

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

 

imp

res

Follow current

If

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 25/xxx (2+0)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSR 25/xxx (2+0) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

20kA per pole
50kA per pole

12.5kA per pole

25kA       

39kJ/

Ω

 per pole

6.25As per pole   

 < 0.7kV                   < 1.4kV                  < 1.4kV                   < 1.6kV                   < 1.9kV
 < 0.6kV                   < 1.1kV                  < 1.1kV                   < 1.4kV                   < 1.7kV

NO     

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE

198g                       251g                       251g                       267g                       283g

504 405                  504 406                  504 407                  504 408                  504 409

203g                       256g                       256g                       272g                       288g

504 420                  504 421                  504 422                  504 423                  504 424

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 41.5mm

PROBLOC BS(R) 25/xxx (2+0)

150                   275                    320                    385                    440

Connection diagram

28

www.iskrazascite.si

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TT

Protection modes: 

L - N , N - PE

Protective element:

High Energy MOV & GDT

High surge discharge rating:

I

 (MOV/GDT) = 12.5/50kA

imp

MOV max withstand capability 1 x 8/20:

I

= 100kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS 25 (1+1)

PROBLOC BS 25 (1+1)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

I  (L-N/N-PE)

n

Max. discharge current (8/20)

I

 (L-N/N-PE)

max

 

Impulse current (10/350)

I

 (L-N/N-PE)

imp

Impulse current (10/350)

I

 (L+N-PE)

imp

Specific energy

(L-N/N-PE)

Charge

(L-N/N-PE)

Protection level

U (L-N)

p 

U (N-PE)

p 

Residual voltage at I

U

 (L-N)

imp

res

Follow current

I  (N-PE)

f

Response time

t  (L-N/N-PE)

A

Thermal protection

(L-N/N-PE)

Back-up fuse (if mains > 250A)

(L-N/N-PE)

Short-circuit withstand current

(L-N/N-PE)

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 25/xxx (1+1)

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

20/50kA

50kA/100kA

12.5kA/50kA

25kA       

39kJ/

Ω

/625kJ/

Ω

6.25As/25As   

 < 0.7kV                   < 1.4kV                  < 1.4kV                   < 1.6kV                   < 1.9kV

< 1.5kV

 < 0.6kV                   < 1.1kV                  < 1.1kV                   < 1.4kV                   < 1.7kV

> 100A

    

RMS

< 25ns/100ns

YES/-

250A gL/-

25kA/50Hz/-

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE

  109 x 76.5 x 41.5mm

192g                       245g                       245g                       261g                       277g

504 410                  504 411                  504 412                  504 413                  504 414

PROBLOC BS(R) 50/xxx (1+1)

150                   275                    320                    385                    440

29

Connection diagram

Class I, II  Multi-pole Surge Protective Device

   I

 = 12.5kA per pole (10/350)

imp

www.iskrazascite.si

Class I, II, III  Multi-pole Surge Protective Device

         I

 = 12.5kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II, III / Type 1, 2, 3 / B+C+D

Location of use:  

Main distribution boards 

Connection:

TN-C

Protection modes: 

L - PEN

Protective element:

High Energy MOV

High surge discharge rating:

I

 =  12.5kA per pole

imp

MOV max withstand capability 1 x 8/20:

I

= 100kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS(R) 37.5 (3+0)

PROBLOC BS(R) 37.5 (3+0)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Combination wave (1.2/50, 8/20)

U

/I

oc sc

Impulse current (10/350)

Iimp

Impulse current (10/350)

I

(L1+L2+L3-PEN)

imp 

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

 

imp

res

Follow current

If

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 37.5/xxx (3+0)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSR 37.5/xxx (3+0) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

20kA per pole
50kA per pole

10kA/5kV

12.5kA per pole

37.5kA       

39kJ/

Ω

 per pole

6.25As per pole   

 < 0.9kV                   < 1.4kV                  < 1.4kV                   < 1.8kV                   < 2.1kV
 < 0.7kV                   < 1.2kV                  < 1.2kV                   < 1.5kV                   < 1.8kV

NO     

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

3TE

300g                       382g                       382g                       394g                       432g

504 049                  504 051                  504 053                  504 267                  504 055

305g                       387g                       387g                       399g                       437g

504 057                  504 059                 504 061                  504 269                  504 063

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 60mm

PROBLOC BS(R) 37.5/xxx (3+0)

150                   275                    320                    385                    440

Connection diagram

30

www.iskrazascite.si

Class I, II, III  Multi-pole Surge Protective Device

         I

 = 12.5kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II, III / Type 1, 2, 3 / B+C+D

Location of use:  

Main distribution boards 

Connections:

TN-S

Protection modes: 

L/N - PE

Protective element:

High Energy MOV

High surge discharge rating:

I

 =  12.5kA per pole

imp

MOV max withstand capability 1 x 8/20:

I

= 100kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS(R) 50 (4+0)

PROBLOC BS(R) 50 (4+0)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Combination wave (1.2/50, 8/20)

U

/I

oc sc

Impulse current (10/350)

Iimp

Impulse current (10/350)

I

(L1+L2+L3+N-PE)

imp 

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

 

imp

res

Follow current

If

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 50/xxx (4+0)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSR 50/xxx (4+0) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

20kA per pole
50kA per pole

10kV/5kA

12.5kA per pole

50kA       

39kJ/

Ω

 per pole

6.25As per pole   

 < 0.9kV                   < 1.4kV                  < 1.4kV                   < 1.8kV                   < 2.1kV
 < 0.7kV                   < 1.2kV                  < 1.2kV                   < 1.5kV                   < 1.8kV

NO     

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

366g                       462g                       462g                       494g                       526g

504 065                  504 067                  504 069                  504 271                  504 071

371g                       467g                       467g                       499g                       531g

504 073                  504 075                  504 077                  504 273                  504 079

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 78mm

PROBLOC BS(R) 50/xxx (4+0)

150                   275                    320                    385                    440

31

Connection diagram

www.iskrazascite.si

Class I, II, III  Multi-pole Surge Protective Device

         I

 = 12.5kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II , III/ Type 1, 2, 3 / B+C+D

Location of use:  

Main distribution boards 

Connections:

TT

Protection modes: 

L - N , N - PE

Protective element:

High Energy MOV & GDT

High surge discharge rating:

I

 (MOV/GDT)=  12.5/50kA

imp

MOV max withstand capability 1 x 8/20:

I

= 100kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

PROBLOC BS(R) 50 (3+1)

PROBLOC BS(R) 50 (3+1)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

I  (L-N/N-PE)

n

Max. discharge current (8/20)

I

 (L-N/N-PE)

max

 

Combination wave (1.2/50, 8/20)

U

/I

oc sc

Impulse current (10/350)

I

 (L-N/N-PE)

imp

Impulse current (10/350)

I

 (L1+L2+L3+N-PE)

imp

Specific energy

(L-N/N-PE)

Charge

(L-N/N-PE)

Protection level

U (L-N)

p 

U (N-PE)

p 

Residual voltage at I

U

 (L-N)

imp

res

Follow current

I  (N-PE)

f

Response time

t  (L-N/N-PE)

A

Thermal protection

(L-N/N-PE)

Back-up fuse (if mains > 250A)

(L-N/N-PE)

Short-circuit withstand current

(L-N/N-PE)

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BS 50/xxx (3+1)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSR 50/xxx (3+1) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

20/50kA

50kA/100kA

10kV/5kA

12.5kA/50kA

50kA       

39kJ/

Ω

/625kJ/

Ω

6.25As/25As   

 < 0.9kV                   < 1.4kV                  < 1.4kV                   < 1.8kV                   < 2.1kV

< 1.5kV

 < 0.7kV                   < 1.2kV                  < 1.2kV                   < 1.5kV                   < 1.8kV

> 100A

    

RMS

< 25ns/100ns

YES/-

250A gL/-

25kA/50Hz/-

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

4TE

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 78mm

442g                       538g                       538g                       548g                       577g

504 480                  504 481                  504 482                  504 483                  504 484

447g                       543g                       543g                       553g                       582g

504 485                  504 486                  504 487                  504 488                  504 489

PROBLOC BS(R) 50/xxx (3+1)

150                   275                    320                    385                    440

Connection diagram

32

www.iskrazascite.si

PROBLOC BS(R) - Connections

PROBLOC BS(R) - Connections

TN-S  Network - Single-phase

TT  Network - Single-phase

TN-C  Network - Three-phase

TN-S  Network - Three-phase

TT  Network - Three-phase

33

L
N

L
N

F1

F2

PE

PE

EBB

L

L

F1

F2

N

N

EBB

PE

L3

L3

L2

L2

L1

F1

F2

L1

PEN

PEN

EBB

L3
N

L3
N

L2

L2

L1

F1

F2

L1

PE

PE

EBB

L3
N

L3
N

L2

L2

L1

F1

F2

L1

EBB

PE

www.iskrazascite.si

34

www.iskrazascite.si

35

MULTI-POLE Surge Protective Devices

MULTI-POLE Surge Protective Devices

MULTI-POLE Surge Protective Devices

INPROTEC VV(R) (2+0)
INPROTEC VG(R) (1+1)
INPROTEC VS(R) (1+0)  

INPROTEC VV(R) (2+0)
INPROTEC VG(R) (1+1)
INPROTEC VS(R) (1+0)  

Category IEC / EN / VDE:

Class I, II / Type 1, 2 / B+ C

Location of use:

Main distribution boards 

Protection modes:

L/N-PE, L-PEN, L-N, N-PE

Protective elements:

High Energy MOV and GDT

High surge discharge ratings:

I

 = 12.5kA per pole

imp

Internal protection and safety:

Separate thermal disconnector 
for each MOV block

Status indication:

Mechanical flag + remote 
contacts (R)

Dimensions DIN 43880:

2TE

The INPROTEC series of over-voltage surge protective devices have 
been developed to protect against partial direct and indirect lightning 
discharges and are intended to provide protection in zones 0  - 1, per 

A

IEC 62305.

The INPROTEC VV series of over-voltage surge protective devices is 
intended for stand-alone use in single phase systems or for use in 
conjunction with the INPROTEC VV or INPROTEC VS or INPROTEC VG 
series when protecting a three phase system. With simple combinations 
of the three variants, an over-voltage protection system can be 
constructed for TT, TNC, TNC-S and IT networks.

INPROTEC VG(R) (1+1):  for TT single phase networks, where N to PE 
galvanic isolation is required.

INPROTEC VV(R) (2+0):  for TNS single phase networks with separate 
N and PE conductors.

INPROTEC VV(R)+VS(R) (3+0):  for TNC three phase networks with 
combined PEN conductor.

INPROTEC VV(R)+VV(R) (4+0):  for TNS three phase networks with 
separate N and PE conductors.

INPROTEC VV(R)+VV(R) (3+1):  for TT three phase networks, where N 
to PE galvanic isolation is required.

www.iskrazascite.si

Class I, II  Multi-pole Surge Protective Device

   I

 = 12.5kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TN-S, IT

Protection modes: 

L/N - PE, L - PEN

Protective element:

High Energy MOV

High surge discharge rating:

I

 =  12.5kA per pole

imp

MOV max withstand capability 1 x 8/20:

I

= 100kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

INPROTEC VV(R) (2+0)

INPROTEC VV(R) (2+0)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Impulse current (10/350)

I

(L+N-PE)

imp 

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

 

imp

res

Follow current

If

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code INPROTEC VV (2+0)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code INPROTEC VVR (2+0) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

40kA per pole
80kA per pole

12.5kA per pole

25kA       

39kJ/

Ω

 per pole

6.25As per pole   

 < 1.0kV                   < 1.8kV                  < 1.8kV                   < 2.2kV                   < 2.4kV
 < 0.6kV                   < 1.1kV                  < 1.1kV                   < 2.1kV                   < 2.3kV

NO     

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 41.5mm

270g                       300g                       300g                       322g                       290g

505 017                  505 019                  505 021                  505 061                  505 023

275g                       305g                       305g                       327g                       295g

505 025                  505 027                  505 029                  505 063                  505 031

INPROTEC VV(R) (2+0)

150                   275                    320                    385                    440

Connection diagram

36

www.iskrazascite.si

Class I, II  Multi-pole Surge Protective Device

   I

 = 12.5kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TT

Protection modes: 

L - N , N - PE

Protective element:

High Energy MOV & GDT

High surge discharge rating:

I

 (MOV/GDT)=  12.5/50kA

imp

MOV max withstand capability 1 x 8/20:

I

= 100kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

INPROTEC VG(R) (1+1)

INPROTEC VG(R) (1+1)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

I  (L-N/N-PE)

n

Max. discharge current (8/20)

I

 (L-N/N-PE)

max

 

Impulse current (10/350)

I

 (L-N/N-PE)

imp

Impulse current (10/350)

I

 (L+N-PE)

imp

Specific energy

(L-N/N-PE)

Charge

(L-N/N-PE)

Protection level

U (L-N)

p 

U (N-PE)

p 

Residual voltage at I

U

 (L-N)

imp

res

Follow current

I  (N-PE)

f

Response time

t  (L-N/N-PE)

A

Thermal protection

(L-N/N-PE)

Back-up fuse (if mains > 250A)

(L-N/N-PE)

Short-circuit withstand current

(L-N/N-PE)

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code INPROTEC VG (1+1)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code INPROTEC VGR (1+1) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

40/40kA

80kA/80kA

12.5kA/50kA

25kA       

39kJ/

Ω

/625kJ/

Ω

6.25As/25As   

 < 1.0kV                   < 1.8kV                  < 1.8kV                   < 2.2kV                   < 2.4kV

< 1.5kV

 < 0.6kV                   < 1.1kV                  < 1.1kV                   < 2.1kV                   < 2.3kV

> 100A

    

RMS

< 25ns/100ns

YES/-

250A gL/-

25kA/50Hz/-

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE

  YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 41.5mm

234g                       268g                       268g                       288g                       254g

505 033                  505 035                  505 037                  505 065                  505 039

239g                       273g                       273g                       293g                       259g

505 041                  505 043                  505 045                  505 067                  505 047

INPROTEC VG(R) (1+1)

150                   275                    320                    385                    440

37

Connection diagram

www.iskrazascite.si

Class I, II  Single-pole Surge Protective Device

   I

 = 12.5kA (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TN-C

Protection modes: 

L/N - PE, L - PEN

Protective element:

High Energy MOV

High surge discharge rating:

I

 =  12.5kA

imp

MOV max withstand capability 1 x 8/20:

I

= 100kA

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

INPROTEC VS(R) (1+0)

INPROTEC VS(R) (1+0)

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Impulse current (10/350)

I

(L+N-PE)

imp 

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

 

imp

res

Follow current

If

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code INPROTEC VV (2+0)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code INPROTEC VVR (2+0) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

     

275/350V

   

 

    

 

   

320/420V

  

 

 

 

       

385/500V

   

 

  

 

     

440/580V

40kA
80kA

12.5kA
12.5kA       
39kJ/

Ω

6.25As

 < 1.0kV                   < 1.8kV                  < 1.8kV                   < 2.2kV                   < 2.4kV
 < 0.6kV                   < 1.1kV                  < 1.1kV                   < 2.1kV                   < 2.3kV

NO     

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE

YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 41.5mm

198g                       232g                       232g                       252g                       218g

505 001                  505 003                  505 005                  505 057                  505 007

203g                       237g                       237g                       257g                       223g

505 009                  505 011                  505 013                  505 059                  505 015

INPROTEC VS(R) (1+0)

150                   275                    320                    385                    440

Connection diagram

38

www.iskrazascite.si

INPROTEC - Connections

INPROTEC - Connections

TN-S  Network - Single-phase

TNS  Network - Three-phase

TN-C  Network - Three-phase

IT  Network - Three-phase

TT  Network - Single-phase

TT  Network - Three-phase

39

L
N

L
N

F1

F2

PE

PE

EBB

L3
N

L3
N

L2

L2

L1

F1

F2

L1

PE

PE

EBB

L3
N

L3
N

L2

L2

L1

F1

F2

L1

PE

EBB

L3

L3
N

L2

L2

L1

F1

F2

L1

PEN

PE

EBB

.

.    

U      1.1   U  

3

c

n

L

L3

N

N

L

L3

N

N

L2

L2

L1

F1

F1

F2

F2

L1

EBB

EBB

PE

PE

www.iskrazascite.si

40

www.iskrazascite.si

41

MULTI-POLE Surge Protective Devices - NO leakage current

MULTI-POLE Surge Protective Devices - NO leakage current

MULTI-POLE Surge Protective Devices - NO leakage current

PROBLOC BSG(R) 100 (4+0)
PROBLOC BSG(R) 100 (3+1)
PROBLOC BSG(R) 100N (3+1)
PROBLOC BSG(R) 25
PROBLOC BSG(R) 50 (4+0)
PROBLOC BSG(R) 50 (3+1)
PROBLOC BSG(R) 12.5

PROBLOC BSG(R) 100 (4+0)
PROBLOC BSG(R) 100 (3+1)
PROBLOC BSG(R) 100N (3+1)
PROBLOC BSG(R) 25
PROBLOC BSG(R) 50 (4+0)
PROBLOC BSG(R) 50 (3+1)
PROBLOC BSG(R) 12.5

Category IEC / EN / VDE:

Class I, II / Type 1, 2 / B+ C

Location of use:

Main distribution boards 

Protection modes:

L/N-PE, L-PEN, L-N, N-PE

Protective elements:

High Energy MOV and GDT

High surge discharge ratings:

I

 = 25kA per pole

imp

Internal protection and safety:

Separate thermal disconnector 
for each MOV block

Status indication:

Mechanical flag + remote 
contacts (R)

Dimensions DIN 43880:

2TE, 5TE

www.iskrazascite.si

The PROBLOC BSG series of over-voltage surge protective devices 
have been developed to protect against partial direct and indirect 
lightning discharges and are intended to provide protection in zones    
0  - 1, per IEC 62305.

A

As a protective element the serial connection MOV and GDT is used. 
Advantage of this kind of connection is absense of leakage current.

PROBLOC BSG(R) (4+0) series:  for TNS three phase networks with 
separate N and PE conductors.

PROBLOC BSG(R) (3+1) series:  for TT three phase networks, where N 
to PE galvanic isolation is required.

PROBLOC BSG(R) 25 and 12.5 series:  for TNS single phase networks 
with separate N and PE conductors,  TNC three phase networks with 
combined PEN conductor, TT single phase networks, where N to PE 
galvanic isolation is required.

PROBLOC BSG(R) 100 (4+0)

PROBLOC BSG(R) 100 (4+0)

Class I, II  Multi-pole Surge Protective Device

   I

 = 25kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TN-S

Protection modes: 

L - N/PE

Protective element:

High Energy MOV & GDT

High surge discharge rating:

I

 = 25kA per pole

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Impulse current (10/350)

I

 (L1+L2+L3+N-PE)

imp

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

n

res

Residual voltage at I

U

imp

res

Follow current

If

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BSG 100/xxx (4+0)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSGR 100/xxx (4+0) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

    

                    

     

 

    

 

   

320/420V

25kA per pole

100kA per pole

25kA per pole

100kA       

156kJ/

Ω

12.5As

 < 1.4kV                                                      < 1.6kV
< 0.9kV                                                       < 1.1kV
< 0.6kV                                                       < 0.8kV

NO     

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

5TE

 YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 96mm

  656g                                                           748g

513 034                                                     513 036

  660g                                                          752g

513 035                                                     513 037

PROBLOC BSG(R)  100/xxx (4+0)

150                                                 320

Connection diagram

42

www.iskrazascite.si

PROBLOC BSG(R) 100 (3+1)

PROBLOC BSG(R) 100 (3+1)

Class I, II  Multi-pole Surge Protective Device

   I

 = 25kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TT

Protection modes: 

L - N , N - PE

Protective element:

High Energy MOV & GDT

High surge discharge rating:

I

 (MOV/GDT) = 25/100kA

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

I  (L-N/N-PE)

n

Max. discharge current (8/20)

I

 (L-N/N-PE)

max

 

Impulse current (10/350)

I

 (L-N/N-PE)

imp

Impulse current (10/350)

I

 (L1+L2+L3+N-PE)

imp

Specific energy

(L-N/N-PE)

Charge

(L-N/N-PE)

Protection level

U (L-N)

p 

U (N-PE)

p 

Residual voltage at I

U

 (L-N)

n

res

Residual voltage at I

U

 (L-N)

imp

res

Follow current

I  (N-PE)

f

Response time

t  (L-N/N-PE)

A

Thermal protection

(L-N/N-PE)

Back-up fuse (if mains > 250A)

(L-N/N-PE)

Short-circuit withstand current

(L-N/N-PE)

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BSG 100/xxx (3+1)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSGR 100/xxx (3+1) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

    

                    

     

 

    

 

   

320/420V

25/100kA

100kA/100kA

25kA/100kA

100kA       

156kJ/

Ω

/2.5MJ/

Ω

12.5As/50As   

 < 1.4kV                                                      < 1.6kV

< 1.75kV

< 0.9kV                                                       < 1.1kV
< 0.6kV                                                       < 0.8kV

> 100A

    

RMS

< 25ns/100ns

YES/-

250A gL/-

25kA/50Hz/-

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

5TE

 YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 96mm

  646g                                                           738g

513 011                                                     513 005

  650g                                                          742g

513 012                                                     513 006

PROBLOC BSG(R)  100/xxx (3+1)

150                                                 320

Connection diagram

43

www.iskrazascite.si

PROBLOC BSG(R) 100N (3+1)

PROBLOC BSG(R) 100N (3+1)

Class I, II  Multi-pole Surge Protective Device

   I

 = 25kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TT

Protection modes: 

L - N , N - PE

Protective element:

High Energy MOV & GDT

High surge discharge rating:

I

 (MOV/GDT) = 25/50kA

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA per pole

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

I  (L-N/N-PE)

n

Max. discharge current (8/20)

I

 (L-N/N-PE)

max

 

Impulse current (10/350)

I

 (L-N/N-PE)

imp

Impulse current (10/350)

I

 (L1+L2+L3+N-PE)

imp

Specific energy

(L-N/N-PE)

Charge

(L-N/N-PE)

Protection level

U (L-N)

p 

U (N-PE)

p 

Residual voltage at I

U

 (L-N)

n

res

Residual voltage at I

U

 (L-N)

imp

res

Follow current

I  (N-PE)

f

Response time

t  (L-N/N-PE)

A

Thermal protection

(L-N/N-PE)

Back-up fuse (if mains > 250A)

(L-N/N-PE)

Short-circuit withstand current

(L-N/N-PE)

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BSG 100N/xxx (3+1)

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSGR 100N/xxx (3+1) - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

    

                    

     

 

    

 

   

320/420V

25/50kA

100kA/100kA

25kA/50kA

100kA       

156kJ/

Ω

/625kJ/

Ω

12.5As/25As   

 < 1.4kV                                                      < 1.6kV

< 1.5kV

< 0.9kV                                                       < 1.1kV
< 0.6kV                                                       < 0.8kV

> 100A

    

RMS

< 25ns/100ns

YES/-

250A gL/-

25kA/50Hz/-

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

5TE

 YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 96mm

  656g                                                           706g

513 015                                                     513 003

  660g                                                          710g

513 016                                                     513 004

PROBLOC BSG(R)  100N/x xx (3+1)

150                                                 320

Connection diagram

44

www.iskrazascite.si

PROBLOC BSG(R) 25

PROBLOC BSG(R) 25

Class I, II  Single-pole Surge Protective Device

   I

 = 25kA per pole (10/350)

imp

Category IEC / EN / VDE:  

Class I, II / Type 1, 2 / B+C

Location of use:  

Main distribution boards 

Connections:

TN-S, TN-C,

 

IT, TT

Protection modes: 

L - N/PE

Protective element:

High Energy MOV & GDT

High surge discharge rating:

I

 = 25kA

imp

MOV max withstand capability 1 x 8/20:

I

= 150kA

max

Housing:

Compact design

Complies with:

IEC-61643-1

Dimensions

Type

Electrical characteristics

Max. continuous operating voltage (AC/DC)

Uc

Nominal discharge current (8/20)

In

Max. discharge current (8/20)

Imax 

Impulse current (10/350)

Iimp

Specific energy
Charge
Protection level

Up 

Residual voltage at I

U

n

res

Residual voltage at I

U

imp

res

Follow current

If

Response time

tA

Thermal protection
Back-up fuse (if mains > 250A)
Short-circuit withstand current

Mechanical characteristics

Temperature range
Terminal screw torque
Terminal cross section
Mounting EN 60715
Degree of protection
Housing material
Dimensions DIN 43880
Weight per unit

Ordering code PROBLOC BSG 25/xxx

Remote contacts
Contact ratings
Terminal cross section
Remote terminal torque
Weight per unit

Ordering code PROBLOC BSGR 25/xxx - with remote contacts

Packaging dimensions (single unit)

Technical data

150/200V

     

  

    

                    

     

 

    

 

   

320/420V

25kA

100kA

25kA       

156kJ/

Ω

12.5As

 < 1.4kV                                                      < 1.6kV
< 0.9kV                                                       < 1.1kV
< 0.6kV                                                       < 0.8kV

NO     

< 25ns

YES

250A gL

25kA/50Hz

o

o

- 40 C ….+ 80 C

max. 4.5Nm

 

 

2

2

35mm (solid)/25mm (stranded)

35mm top-hat rail

IP 20

Thermoplastic; extinguishing degree UL 94 V-0

2TE

 YES

AC: 250V/0.5A; 125V/3A

2

 max. 1.5mm

0.25Nm

109 x 76.5 x 41.5mm

 213g                                                          233g

513 026                                                     513 028

218g                                                          235g

513 027                                                     513 029

PROBLOC BSG(R)  25/xxx

150                                                 320

Connection diagram

45

www.iskrazascite.si