For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

114

Square Body Fuses

General Information

Designed and tested to:

• IEC 60269: Part 4
• UL Recognized

Cooper Bussmann offers a complete range of square body
style fuses and accessories. Their unique design and 
construction provide:

• Minimal energy let-through (I

2

t)

• Low operating temperature
• Low watts loss

Square body style fuses are a very attractive solution for high
power applications which require a compact design with
superior performance. The construction and design of square
body style fuses make it easy for Cooper Bussmann to 
manufacture custom products. Our cataloged offering 
provides only a sample of the wide variety of product which 
is available.

Each square body style fuse is available with a number of 
different end fittings. Options include:

• DIN 43 653
• DIN 43 620
• Flush End (Metric/US)
• French Style
• US Style

Voltage Rating

All Cooper Bussmann square body style fuses are tested to
IEC 60269: Part 4. This standard requires a test voltage
which is 5% higher than the rated voltage. In North America,
fuses are required to clear only their rated voltage.

Accessories

Square Body style fuses are available with three different
open fuse indicator systems. Options include visual 
indication and indication utilizing a microswitch. Fuse 
blocks are also available for most applications.

Introduction

Square Body Contents

Page

Application Information

115-116

Accessories

Page

Indicator System

185

Fuse Bases

186

Square Body Fuse Ranges

Amps

Volts

AC

DC

10-7500

690

X

—

50-1400

1250

X

—

Volts

(IEC/UL)

Size

Class

Fuse Style

Page

aR

DIN 43 653

117-119

000,00

aR

Flush End Contact

117-119

aR

DIN 43 620

120-121

aR

DIN 43 653

122-123

aR

Flush End Contact

124-125

690/700

1*, 1, 2, 3

aR

US Style

126-127

aR

French Style

128-129

aR

Fuse Curves

130-131

1*, 2, 3

aR

DIN 43 620

132-134

4

aR

Flush End Contact

135-136

23, 24

aR

Flush End Contact

137-139

00, 1, 2, 3

aR

DIN 43 620

140-143

00

aR

DIN 43 653

144-145

aR

DIN 43 653

146-147

1*, 1, 2, 3

aR

Flush End Contact

148-149

1000

aR

US Style

150-151

aR

Fuse Curves

152-153

4

aR

Flush End Contact

154-156

24

aR

Flush End Contact

157-159

aR

DIN 43 653

160-161

1*, 1, 2, 3

aR

Flush End Contact

162-163

aR

US Style

164-165

1250/1300

aR

Fuse Curves

166-167

4

aR

Flush End Contact

168-170

23

aR

Flush End Contact

171-172

1000-2000

5

aR

Flush End Contact

173

DC Fuses

174-184

115

Square Body Applications

Maximum Permissible Load Current

The rated current value of Cooper Bussmann fuses is based
on the ambient temperature in the space immediately below
the fuse of 20°C. The following graph gives correction factors
(k) for a range of temperatures (–40°C to +80°C). Maximum
permissible continuous load currents can be calculated by
applying the following formula:

Ib

≤

In

≈

k 

≈

(1 + 0.05 V) x Kb

where

Ib = Maximum permissible continuous load current
In = Rated current of fuse
k

= Temperature correction factor

v

= Velocity of cooling air in m/s (max. 5 m/s).

Kb = Fuse load constant 1.0 

Temperature Correction Curve

The maximum permissible continuous load current Ib of a
fuse can be checked empirically (i.e., by satisfying the 
formula below) by making simple voltage and temperature
measurements under actual operating conditions after the
fuse has been installed in its operating location and loaded 
at the calculated Ib value:

E

2

≈

(0.92 + 0.004t) 

≤

N

E

1

where

E

1

= Voltage drop across fuse after 5 seconds

E

2

= Voltage drop across fuse after 2 hours

t

= Air temperature at start of test (°C)

N = Constant 

Fuse Rated Voltage (IEC) N

690

1.5

1250

1.6

 

Body Cross Section 

Standard fuse program includes barrels with different cross sections. 

Size 

000 00 1

1 

2 

3 

4 

Maximum 

Cross-section 

(mm) 

21 ≈ 36 

30 ≈ 47 

45 ≈ 45 

53 ≈ 53 

61 ≈ 61 

76 ≈ 76 

105 ≈ 105 

 

1 . 4

1 . 2

1

0 . 8

0 . 6

k

–

4 0

–

2 0

0

4 0

2 0

6 0

8 0

C

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed

Fuses

High Speed Fuses

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

116

Square Body Applications

Example Application of Square Body High Speed

Fuses Subject to Overload and Impulse Loading

Select a short-blade indicating fuse with indicator/adapter to
permit the use of a single-pole microswitch for remote 
indication and determine if the fuse selected will meet the 
following application parameters.

Application Parameters

Load Currents Expected

Load Type

Duration

Frequency of Occurrence

Amps

(

1) Normal

Continuous

—

300A

(2) Overload

60 Seconds

Once Per Hour

500A

(3a)

10 Seconds

2-3 Times Per Week

(3b)

Overload

20 Seconds (max.) Once Per Month

700A

(4) Impulse

0.5 Seconds

Less Than Once Per Month

1100A

Voltage Data

(5) Voltage Applied to Fuse During Fault Conditions

400V

(+10%)

Temperature Data

(6) Temperature Inside Cubicle in Which Fuse is Located (Natural Convection Cooling Only)
60°C

Thyrister Data

(7) Thyrister Peak Voltage Withstand

1000V

(8) Thyrister I

2

t Withstand at 10 Milliseconds*

90,000A

2

s

*Note: The I

2

t withstand of the thyrister may be given for other impulse durations (i.e., 1.5 ms,

3.5 ms, or 8.3 ms); however, the stated fuse I

2

t is valid for all impulse durations of 10 ms or

less.

Application Procedure

Step

Procedure

Remarks

(1) Select a short-blade fuse to permit

1.1 Taking into consideration only the

mounting of microswitch 170H0069

continuous load current and ambient

temperature, from Table on page 127 

—

tentatively select fuse 170M3669

400A, 690V).

(2) Determine I

2

t (total clearing) at 440V.

2.1 See Table, page 127. Note I

2

t is

105,000A

2

s at rated voltage of 690V.

2.2 From the figure on page 126, note that

OK

correction factor K = 0.65.

2.3 I

2

t660V

≈

K = I

2

t440V

105,000 

≈

0.65 = 68,250

(3) Determine maximum arc voltage

3.1 From the figure on page 126, note that

at 440V

maximum voltage at 440V is 900V

OK

(4) Determine maximum permissible

4.1 Per page 115 data,

continuous load current Ib.

Ib = In ≈ k ≈ (1 + 0.05V) ≈ Kb

—

Ib = 400A ≈ 0.8 ≈ (1 + 0) ≈ 1
Ib = 320A

(5) Plot a “line profile” showing the

5.0 Calculate Imax per Table, 

expected load and overload currents.

High Speed Fuse Application Guide

—

Determine that overload and impulse

page 16, for each overload and impulse

load currents do not exceed their

load.

maximum permissible values.

(Item 2)

5.1 

Imax < 60% ≈ It

500A < 60% 

≈

950A

OK

500A < 570A

(Item 3a)

5.2 Imax < 60% ≈ It
700A < 60% ≈ 1360A

OK

700A < 780A

(Item 3b)

5.3 Imax < 70% ≈ It
700A < 70% ≈ 1150A

OK

700A < 805A

(Item 4)

5.4 Imax < 70% ≈ It
1100A < 70% ≈ 1800A

OK

1100A < 1260A

The tentatively selected fuse 170M3669 with microswitch 170H0069 meets all application parameters; no further

selection would be necessary.

10

2

10

3

10

–2

10

–1

10

0

10

1

10

2

10

3

Current In Amperes

T

ime In Seconds

A

A

170M3669  (400A)

Profile Line

Calculation of Watt Loss

From the Table on page 127, watt loss at 400 amps is 60
watts. The continuous load current of 300A is 75% of rated
current (400A). From page 126, the correction factor 
Kp = 0.5.

Watt Loss 75% = Watt Loss 100% 

≈ 

Kp

= 60W 

≈

0.5

= 30 watts

Special Fuses

Other high speed fuses are available from Cooper
Bussmann with voltage ratings of 380 to 10,000V and current
ratings up to 10,000A in a single unit configuration. Fuses
can be supplied with open fuse, “pin” indicators. Various
types of microswitches are also available (see page 185).

117

Square Body DIN 43 653 — 690V/700V (IEC/UL): 10-400A

Arc Voltage

This curve gives the
peak arc voltage, UL,

which may appear
across the fuse during
its operation as a 
function of the applied
working voltage, Eg,

(rms) at a power factor
of 15%.

Power Losses

Watts loss at rated 
current is given in the
electrical characteristics.
The curve allows the
calculation of the power
losses at load currents
lower than the rated 
current. The correction
factor, Kp, is given as a

function of the RMS
load current, Ib, in % of

the rated current.

Features and Benefits

• Excellent DC performance
• Low arc voltage and low energy let-through (I

2

t)

• Low watts loss
• Superior cycling capability

Typical Applications

• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters

*

690V/700V (IEC/UL) 10-400A

Specifications
Description:

Square body DIN

43-653 stud mount high speed
fuses.

Dimensions:

See dimensions 

illustration.

Ratings:

Volts: — 690Vac (IEC)

— 700Vac (UL)

Amps: — 10-400A

IR: — 200kA RMS Sym.

Agency Information:

CE,

Designed and tested to IEC
60269: Part 4, UL Recognized.
UL Recognition/CSA Component
Acceptance on Size 000.

Electrical Characteristics

Total Clearing I

2

t

The total clearing I

2

t at

rated voltage and at power
factor of 15% are given 
in the electrical 
characteristics. For other
voltages, the clearing I

2

t is

found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).

100 200 300 400 500 600

K

1.5

1.0

0.5

0.4

0.3

0.2

E

g

690

U

L

1.4

1.2

10

3

6

8
7

9

5

4

3

E

g

200

300

400

500

600 690

K

p

30 40 50

60

70

80 90 100%

I

b

1.0
0.8

0.4

0.5

0.6

0.3

0.2

0.1

F

100

78

D

E

G

H

K

54

Indicator

Dimensions (mm)

Type -U/80, -/80, -TN/80

S

Siiz

ze

e

D

D

E

E

F

F

G

G

H

H

K

K

000

40

21

20

51

8

2

00

51

30

28

67

10

2

1mm = 0.0394” / 1” = 25.4mm

* Indication for Size 00 fuses is a red pin.

54 Max

64

30

48

62

M8

6

Indicator

Dimensions (mm)

Type 00B/60, 00BTN/60

1mm = 0.0394” / 1” = 25.4mm

For Other Voltage Ratings in This Body Style  

• See page 144 (1000V)

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed

Fuses

High Speed Fuses

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

118

Square Body DIN 43 653 — 690V/700V (IEC/UL): 10-400A

Catalog Numbers

C

Ca

atta

allo

og

g  N

Nu

um

mb

be

errs

s

--T

TN

N//8

80

0

0

00

0B

BT

TN

N//6

60

0                                                      

E

Elle

ec

cttrriic

ca

all  C

Ch

ha

arra

ac

ctte

erriis

sttiic

cs

s

--U

U//8

80

0

--//8

80

0

T

Ty

yp

pe

e  T

T

0

00

0B

B//6

60

0

T

Ty

yp

pe

e  T

T

R

Ra

atte

ed

d

II

2

2

tt  ((A

A

2

2

S

Se

ec

c))

W

Wiitth

ho

ou

utt

V

Viis

su

ua

all

IIn

nd

diic

ca

atto

orr

V

Viis

su

ua

all

IIn

nd

diic

ca

atto

orr

C

Cu

urrrre

en

ntt

C

Clle

ea

arriin

ng

g

W

Wa

atttts

s

IIn

nd

diic

ca

atto

orr

IIn

nd

diic

ca

atto

orr

ffo

orr  M

Miic

crro

o

IIn

nd

diic

ca

atto

orr

ffo

orr  M

Miic

crro

o

S

Siiz

ze

e

R

RM

MS

S--A

Am

mp

ps

s

P

Prre

e--a

arrc

c

a

att  6

66

60

0V

V

L

Lo

os

ss

s

170M1308

170M1358

170M1408

10

3.8

25.5

3.0

170M1309

170M1359

170M1409

16

7.2

48

5.5

170M1310

170M1360

170M1410

20

11.5

78

7

170M1311

170M1361

170M1411

25

19

130

9

170M1312

170M1362

170M1412

32

40

270

10

170M1313

170M1363

170M1413

40

69

460

12

170M1314

170M1364

170M1414

50

115

770

15

170M1315

170M1365

170M1415

000

63

215

1450

16

170M1316

170M1366

170M1416

80

380

2550

19

170M1317

170M1367

170M1417

100

695

4650

24

170M1318

170M1368

170M1418

125

1200

8500

28

170M1319

170M1369

170M1419

160

2300

16000

32

170M1320

170M1370

170M1420

200

4200

28000

37

170M1321

170M1371

170M1421

250

7750

51500

42

170M1322

170M1372

170M1422

315

12000

80500

52

170M2608

170M2658

170M2708

170M2758

25

19

130

6

170M2609

170M2659

170M2709

170M2759

32

28.5

195

7

170M2610

170M2660

170M2710

170M2760

40

50

360

9

170M2611

170M2661

170M2711

170M2761

50

95

640

10

170M2612

170M2662

170M2712

170M2762

63

170

1200

12

170M2613

170M2663

170M2713

170M2763

80

310

2100

15

170M2614

170M2664

170M2714

170M2764

00

100

620

4150

20

170M2615

170M2665

170M2715

170M2765

125

1000

6950

25

170M2616

170M2666

170M2716

170M2766

160

1900

13000

30

170M2617

170M2667

170M2717

170M2767

200

3400

23000

35

170M2618

170M2668

170M2718

170M2768

250

6250

42000

45

170M2619

170M2669

170M2719

170M2769

315

10000

68500

55

170M2620

170M2670

170M2720

170M2770

350

13500

91500

60

170M2621

170M2671

170M2721

170M2771

400

18000

125000

70

• Watts loss provided at rated current.
• Microswitch indicator ordered separately.
• See accessories on pages 185-186.
• For fuse curves see page 119.

Square Body Size 000, 00 — 690V/700V (IEC/UL): 10-400A

1x10

1

10

2

10

3

10

4

1x10

–4

10

–3

10

–2

10

–1

10

0

10

1

10

2

10

3

10

4

Prospective Current In Amps RMS

V

irtual Pre-Arcing 

T

ime In Seconds

10A

16A

20A

25A

32A

40A

50A

63A

80A

100

A

125

A

160

A

200

A

250

A

315

A

A

A

1x10

1

10

2

10

3

10

4

1x10

–4

10

–3

10

–2

10

–1

10

0

10

1

10

2

10

3

10

4

Prospective Current in Amps RMS

V

irtual Pre-Arcing 

T

ime In Seconds

25A

32A

40A

50A

63A

80A

100

A

125

A

160

A

200

A

250

A

315

A

350

A

400

A

A

A

Size 00 — 25-400A: 690V

Time-Current Curve

Size 000 — 10-315A: 690V

Time-Current Curve

1x10

1

10

2

10

3

10

4

10

5

2x10

1

10

2

10

3

10

4

Prospective Short-Circuit Current Symmetrical RMS

P

eak Let-Through Current

10A

16A

20A

25A

32A

40A

50A

63A

80A

100A

125A

160A

200A

250A

A

B

315A

1x10

1

10

2

10

3

10

4

10

5

2x10

1

10

2

10

3

10

4

Prospective Short-Circuit Current Symmetrical RMS

P

eak Let-Through Current

25A

32A

40A

50A

63A

80A

100A

125A

160A

200A

250A

315A

350A

400A

A

B

Peak Let-Through Curve

Peak Let-Through Curve

Data Sheet: 17056310

Data Sheet: 172056312

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

119

High Speed

Fuses

High Speed Fuses

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

120

High Speed Fuses

Square Body DIN 43 620 — 690V (IEC/UL): 10-315A

690V (IEC/UL) 10-315A

Specifications

D

De

es

sc

crriip

pttiio

on

n::

Square body DIN 43

620 blade style high speed fuses.

D

Diim

me

en

ns

siio

on

ns

s::

See dimensions

illustration.

R

Ra

attiin

ng

gs

s::

Volts: — 690Vac

Amps: — 10-315A

IR: — 200kA RMS Sym.

A

Ag

ge

en

nc

cy

y  IIn

nffo

orrm

ma

attiio

on

n::

CE, Designed and tested to IEC

60269: Part 4, UL Recognized.

Electrical Characteristics

Total Clearing I

2

t

The total clearing I

2

t at

rated voltage and at power
factor of 15% are given in
the electrical characteris-
tics. For other voltages,
the clearing I

2

t is found by

multiplying by correction
factor, K, given as a func-
tion of applied working
voltage, Eg, (rms).

54 Ma

x

79

48

21

6

35

15

I

ndicator

Dimensions (mm)

DIN 000 Type T

1mm = 0.0394” / 1” = 25.4mm

Arc Voltage

This curve gives the peak
arc voltage, UL, which

may appear across the
fuse during its operation
as a function of the
applied working voltage,
Eg, (rms) at a power factor

of 15%.

Power Losses

Watts loss at rated current
is given in the electrical
characteristics. The curve
allows the calculation of
the power losses at load
currents lower than the
rated current. The correc-
tion factor, Kp, is given as

a function of the RMS load
current, Ib, in % of the

rated current.

Features and Benefits

• Excellent DC performance
• Low arc voltage and low energy let-through (I

2

t)

• Low watts loss
• Superior cycling capability

Typical Applications

• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed

Fuses

121

Catalog Numbers

C

Ca

atta

allo

og

g  N

Nu

um

mb

be

errs

s

D

DIIN

N

E

Elle

ec

cttrriic

ca

all  C

Ch

ha

arra

ac

ctte

erriis

sttiic

cs

s

T

Ty

yp

pe

e  T

T

R

Ra

atte

ed

d

II

2

2

tt  ((A

A

2

2

S

Se

ec

c))

IIn

nd

diic

ca

atto

orr

C

Cu

urrrre

en

ntt

C

Clle

ea

arriin

ng

g

W

Wa

atttts

s

ffo

orr  M

Miic

crro

o

S

Siiz

ze

e

R

RM

MS

S--A

Am

mp

ps

s

P

Prre

e--a

arrc

c

a

att  6

66

60

0V

V

L

Lo

os

ss

s

170M1558D

10

4

27

2.5

170M1559D

16

7

51

4

170M1560D

20

11.5

82.5

5

170M1561D

25

19

140

6

170M1562D

32

40

285

7

170M1563D

40

65

490

8.5

170M1564D

000

50

115

815

9.5

170M1565D

63

215

1550

11.5

170M1566D

80

380

2700

15

170M1567D

100

695

4950

16.5

170M1568D

125

1180

8250

21.5

170M1569D

160

2300

16500

25

170M1570D

200

4350

31000

29.5

170M1571D

250

7900

56000

35.5

170M1572D

00

315

12000

84500

45

• Watts loss provided at rated current.
• Microswitch indicator ordered separately. See accessories on pages 185-186.

Rated Current

The rated current of this fuse range has been given with 
copper conductors that have a current density of 1.3 A/mm

2

(IEC 60269-4). For conductor cross section according to IEC
60269-1, the fuses with a rated current higher than 125A
must be derated. Please contact Cooper Bussmann for 
application assistance.

Square Body DIN 43 620 — 690V (IEC/UL): 10-315A

Size 000 — 10-315A: 690V

Time-Current Curve

Peak Let-Through Curve

Data Sheet: 72056310

High Speed Fuses

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

122

Square Body DIN 43 653 — 690V/700V (IEC/UL):
40-2000A

690V/700V (IEC/UL) 40-2000A

Specifications

Description: Square body DIN 43
653 stud-mount high speed fuses.

Dimensions:

See dimensions

illustration.

Ratings:

Volts: — 690Vac (IEC)

— 700Vac (UL)

Amps: — 40-2000A

IR: — 200kA RMS Sym.

Agency Information:

CE,

Designed and tested to IEC
60269: Part 4, UL Recognized.
Consult Cooper Bussmann for UL
Recognition/CSA Component
Acceptance status.

Electrical Characteristics

Total Clearing I

2

t

The total clearing I

2

t at

rated voltage and at power
factor of 15% are given in
the electrical 
characteristics. For other
voltages, the clearing I

2

t is

found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).

Arc Voltage

This curve gives the peak
arc voltage, UL, which

may appear across the
fuse during its operation
as a function of the
applied working voltage,
Eg, (rms) at a power factor

of 15%.

Power Losses

Watts loss at rated current
is given in the electrical
characteristics. The curve
allows the calculation of
the power losses at load
currents lower than the
rated current. The 
correction factor, Kp, is

given as a function of the
RMS load current, Ib, in %

of the rated current.

Features and Benefits

• Excellent DC performance
• Low arc voltage and low energy let-through (I

2

t)

• Low watts loss
• Superior cycling capability

Typical Applications

• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters

U

L

1.4

1.2

10

3

6

8
7

9

5

4

3

E

g

200

300

400

500

600 690

K

p

1.0
0.8

0.4

0.5

0.6

0.3

0.2

0.1

30 40 50

60

70

80 90 100%

I

b

100 200 300 400 500 600 690

K

1.5

1.0

0.5

0.4

0.3

0.2

E

g

1)

2)

1) Rated voltage 600V
2) Rated voltage 550V

A

B

C

D

E

E

6

11

H

Dimensions (mm)

S

Siiz

ze

e

A

A

B

B

B

B****

C

C

C

C****

D

D******

E

E

H

H

1*

50

104

134

78

108

58

45

22

1

50

108

138

78

108

66

53

25

2

50

108

138

78

108

75

61

25

3

51

109

139

78

108

90

76

30

**Valid for fuses type -/110, -TN/110.
***Microswitch.
1mm = 0.0394” / 1” = 25.4mm

Type -KN/80, -KN/110

Type -/80, -TN/80, -/110, -TN/110.

C

B

A

H

11

6

E

E

D

For Other Voltage Ratings in This Body Style  

• See pages 146 (1000V) and 160 (1250V/1300V)

Square Body DIN 43 653 — 690V/700V (IEC/UL):
40-2000A

123

C

Ca

atta

allo

og

g  N

Nu

um

mb

be

errs

s

--//8

80

0

--T

TN

N//8

80

0

--K

KN

N//8

80

0

--T

TN

N//1

11

10

0

--K

KN

N//1

11

10

0

E

Elle

ec

cttrriic

ca

all  C

Ch

ha

arra

ac

ctte

erriis

sttiic

cs

s

V

Viis

su

ua

all

T

Ty

yp

pe

e  T

T

T

Ty

yp

pe

e  K

K

--//1

11

10

0

T

Ty

yp

pe

e  T

T

T

Ty

yp

pe

e  K

K

II

2

2

tt  ((A

A

2

2

S

Se

ec

c))

W

Wa

atttts

s

IIn

nd

diic

ca

atto

orr

IIn

nd

diic

ca

atto

orr

V

Viis

su

ua

all

IIn

nd

diic

ca

atto

orr

IIn

nd

diic

ca

atto

orr

R

Ra

atte

ed

d

C

Cu

urrrre

en

ntt

C

Clle

ea

arriin

ng

g

IIn

nd

diic

ca

atto

orr

ffo

orr  M

Miic

crro

o

ffo

orr  M

Miic

crro

o

ffo

orr  M

Miic

crro

o

ffo

orr  M

Miic

crro

o

--K

KN

N//8

80

0

S

Siiz

ze

e

R

RM

MS

S--A

Am

mp

ps

s

P

Prre

e--a

arrc

c

a

att  6

66

60

0V

V

L

Lo

os

ss

s

170M3008

170M3058

170M3108

170M3158

170M3208

170M3258

40

40

270

9

170M3009

170M3059

170M3109

170M3159

170M3209

170M3259

50

77

515

11

170M3010

170M3060

170M3110

170M3160

170M3210

170M3260

63

115

770

14

170M3011

170M3061

170M3111

170M3161

170M3211

170M3261

80

185

1250

18

170M3012

170M3062

170M3112

170M3162

170M3212

170M3262

100

360

2450

21

170M3013

170M3063

170M3113

170M3163

170M3213

170M3263

125

550

3700

26

170M3014

170M3064

170M3114

170M3164

170M3214

170M3264

160

1100

7500

30

170M3015

170M3065

170M3115

170M3165

170M3215

170M3265

200

2200

15000

35

170M3016

170M3066

170M3116

170M3166

170M3216

170M3266

1*

250

4200

28500

40

170M3017

170M3067

170M3117

170M3167

170M3217

170M3267

315

7000

46500

50

170M3018

170M3068

170M3118

170M3168

170M3218

170M3268

350

10000

68500

55

170M3019

170M3069

170M3119

170M3169

170M3219

170M3269

400

15000

105000

60

170M3020

170M3070

170M3120

170M3170

170M3220

170M3270

450

21000

140000

65

170M3021

170M3071

170M3121

170M3171

170M3221

170M3271

500

27000

180000

70

170M3022

170M3072

170M3122

170M3172

170M3222

170M3272

550

34000

230000

75

170M3023

170M3073

170M3123

170M3173

170M3223

170M3273

630

48500

325000

80

170M4008

170M4058

170M4108

170M4158

170M4208

170M4258

200

1650

11500

45

170M4009

170M4059

170M4109

170M4159

170M4209

170M4259

250

3100

21000

55

170M4010

170M4060

170M4110

170M4160

170M4210

170M4260

315

6200

42000

58

170M4011

170M4061

170M4111

170M4161

170M4211

170M4261

350

8500

59000

60

170M4012

170M4062

170M4112

170M4162

170M4212

170M4262

400

13500

91500

65

170M4013

170M4063

170M4113

170M4163

170M4213

170M4263

450

17000

120000

70

170M4014

170M4064

170M4114

170M4164

170M4214

170M4264

1

500

25000

170000

72

170M4015

170M4065

170M4115

170M4165

170M4215

170M4265

550

34000

230000

75

170M4016

170M4066

170M4116

170M4166

170M4216

170M4266

630

52000

350000

80

170M4017

170M4067

170M4117

170M4167

170M4217

170M4267

700

69500

465000

85

170M4018

170M4068

170M4118

170M4168

170M4218

170M4268

800

105000

725000

95

170M4019

170M4069

170M4119

170M4169

170M4219

170M4269

‡900

155000

‡850000

100

170M5008

170M5058

170M5108

170M5158

170M5208

170M5258

400

11000

74000

65

170M5009

170M5059

170M5109

170M5159

170M5209

170M5259

450

15500

105000

70

170M5010

170M5060

170M5110

170M5160

170M5210

170M5260

500

21500

145000

75

170M5011

170M5061

170M5111

170M5161

170M5211

170M5261

550

28000

190000

80

170M5012

170M5062

170M5112

170M5162

170M5212

170M5262

630

41000

275000

90

170M5013

170M5063

170M5113

170M5163

170M5213

170M5263

2

700

60500

405000

95

170M5014

170M5064

170M5114

170M5164

170M5214

170M5264

800

86000

575000

105

170M5015

170M5065

170M5115

170M5165

170M5215

170M5265

900

125000

840000

110

170M5016

170M5066

170M5116

170M5166

170M5216

170M5266

1000

180000

1250000

115

170M5017

170M5067

170M5117

170M5167

170M5217

170M5267

1100

245000

1600000

120

170M5018

170M5068

170M5118

170M5168

170M5218

170M5268

1250

365000

2400000

130

170M6008

170M6058

170M6108

170M6158

170M6208

170M6258

500

14000

95000

95

170M6009

170M6059

170M6109

170M6159

170M6209

170M6259

550

19500

135000

100

170M6010

170M6060

170M6110

170M6160

170M6210

170M6260

630

31000

210000

105

170M6011

170M6061

170M6111

170M6161

170M6211

170M6261

700

44500

300000

110

170M6012

170M6062

170M6112

170M6162

170M6212

170M6262

800

69500

465000

115

170M6013

170M6063

170M6113

170M6163

170M6213

170M6263

900

100000

670000

120

170M6014

170M6064

170M6114

170M6164

170M6214

170M6264

3

1000

140000

945000

125

170M6015

170M6065

170M6115

170M6165

170M6215

170M6265

1100

190000

1300000

130

170M6016

170M6066

170M6116

170M6166

170M6216

170M6266

1250

290000

1950000

140

170M6017

170M6067

170M6117

170M6167

170M6217

170M6267

1400

370000

2450000

155

170M6018

170M6068

170M6118

170M6168

170M6218

170M6268

1500

460000

3100000

160

170M6019

170M6069

170M6119

170M6169

170M6219

170M6269

1600

580000

3900000

160

170M6020

170M6070

170M6120

170M6170

170M6220

170M6270

†1800

880000

†5250000

165

170M6021

170M6071

170M6121

170M6171

170M6221

170M6271

‡2000

1150000

‡6350000

175

†Rated voltage (IEC) 600V.
‡Rated voltage (IEC) 550V.
• Watts loss provided at rated current.
• Microswitch indicator ordered separately. See accessories on pages 185-186.
• For fuse curves see pages 130 and 131.

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed

Fuses

High Speed Fuses

Catalog Numbers

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

124

Arc Voltage

This curve gives the peak
arc voltage, UL, which

may appear across the
fuse during its operation
as a function of the
applied working voltage,
Eg, (rms) at a power factor

of 15%.

Power Losses

Watts loss at rated current
is given in the electrical
characteristics. The curve
allows the calculation of
the power losses at load
currents lower than the
rated current. The 
correction factor, Kp, is

given as a function of the
RMS load current, Ib, in %

of the rated current.

Features and Benefits

• Excellent DC performance
• Low arc voltage and low energy let-through (I

2

t)

• Low watts loss
• Superior cycling capability

Typical Applications

• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters

Square Body Flush End Contact — 690V/700V (IEC/UL):
40-2000A

K

p

30 40 50

60

70

80 90 100%

I

b

1.0
0.8

0.4

0.5

0.6

0.3

0.2

0.1

690V/700V (IEC/UL) 40-2000A

Specifications

D

De

es

sc

crriip

pttiio

on

n::

Square body flush

end contact high speed fuses.

D

Diim

me

en

ns

siio

on

ns

s::

See dimensions

illustrations.

R

Ra

attiin

ng

gs

s::

Volts: — 690Vac (IEC)

— 700Vac (UL)

Amps: — 40-2000A

IR: — 200kA RMS Sym.

A

Ag

ge

en

nc

cy

y  IIn

nffo

orrm

ma

attiio

on

n::

CE, Designed and tested to IEC

60269: Part 4, UL Recognized. Consult Cooper Bussmann
for UL Recognition / CSA Component Acceptance Status.

Electrical Characteristics

Total Clearing I

2

t

The total clearing I

2

t at

rated voltage and at power
factor of 15% are given in
the electrical 
characteristics. For other
voltages, the clearing I

2

t is

found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).

A

B

D

E

E

H

G

F

Dimensions (mm)

Type -B/-, -BKN/-, -G/-, -GKN/-

S

Siiz

ze

e

A

A

B

B

D

D

E

E

F

F

F

F****  ((iin

n))

G

G

H

H

1*

50

51

59

45

M8

5

⁄

16

” - 18 UNC-2B

5

ø17

1

50

51

69

53

M8

5

⁄

16

” - 18 UNC-2B

8

ø20

2

50

51

77

61

M10

3

⁄

8

” - 16 UNC-2B

10

ø24

3

51

53

92

76

M12

1

⁄

2

” - 13 UNC-2B

10

ø30

**Valid for fuses type -G/- & -GKN/-.
NB: B = 65 for:

Size 2, 1100-1250A
Size 3, 1600-2000A

1mm = 0.0394” / 1” = 25.4mm

U

L

1.4

1.2

10

3

6

8
7

9

5

4

3

E

g

200

300

400

500

600 690

K

1.5

1.0

0.5

0.4

0.3

0.2

E

g

1)

2)

100 200 300 400 500 600 690

1) Rated voltage 600V.
2) Rated voltage 550V

For Other Voltage Ratings in This Body Style  

• See pages 148 (1000V) and 162 (1250V/1300V)

125

Square Body Flush End Contact — 690V/700V (IEC/UL):
40-2000A

C

Ca

atta

allo

og

g  N

Nu

um

mb

be

errs

s

--B

BK

KN

N//--

--G

GK

KN

N//--

E

Elle

ec

cttrriic

ca

all  C

Ch

ha

arra

ac

ctte

erriis

sttiic

cs

s

--B

B//--

T

Ty

yp

pe

e  K

K

--G

G//--

T

Ty

yp

pe

e  K

K

R

Ra

atte

ed

d

II

2

2

tt  ((A

A

2

2

S

Se

ec

c))

V

Viis

su

ua

all

IIn

nd

diic

ca

atto

orr

V

Viis

su

ua

all

IIn

nd

diic

ca

atto

orr

C

Cu

urrrre

en

ntt

C

Clle

ea

arriin

ng

g

W

Wa

atttts

s

IIn

nd

diic

ca

atto

orr

ffo

orr  M

Miic

crro

o

IIn

nd

diic

ca

atto

orr

ffo

orr  M

Miic

crro

o

S

Siiz

ze

e

R

RM

MS

S--A

Am

mp

ps

s

P

Prre

e--a

arrc

c

a

att  6

66

60

0V

V

L

Lo

os

ss

s

170M3408

170M3458

170M3508

170M3558

40

40

270

9

170M3409

170M3459

170M3509

170M3559

50

77

515

11

170M3410

170M3460

170M3510

170M3560

63

115

770

14

170M3411

170M3461

170M3511

170M3561

80

185

1250

18

170M3412

170M3462

170M3512

170M3562

100

360

2450

21

170M3413

170M3463

170M3513

170M3563

125

550

3700

26

170M3414

170M3464

170M3514

170M3564

160

1100

7500

30

170M3415

170M3465

170M3515

170M3565

200

2200

15000

35

170M3416

170M3466

170M3516

170M3566

1*

250

4200

28500

40

170M3417

170M3467

170M3517

170M3567

315

7000

46500

50

170M3418

170M3468

170M3518

170M3568

350

10000

68500

55

170M3419

170M3469

170M3519

170M3569

400

15000

105000

60

170M3420

170M3470

170M3520

170M3570

450

21000

140000

65

170M3421

170M3471

170M3521

170M3571

500

27000

180000

70

170M3422

170M3472

170M3522

170M3572

550

34000

230000

75

170M3423

170M3473

170M3523

170M3573

630

48500

325000

80

170M4408

170M4458

170M4508

170M4558

200

1650

11500

45

170M4409

170M4459

170M4509

170M4559

250

3100

21000

55

170M4410

170M4460

170M4510

170M4560

315

6200

42000

58

170M4411

170M4461

170M4511

170M4561

350

8500

59000

60

170M4412

170M4462

170M4512

170M4562

400

13500

91500

65

170M4413

170M4463

170M4513

170M4563

450

17000

120000

70

170M4414

170M4464

170M4514

170M4564

1

500

25000

170000

72

170M4415

170M4465

170M4515

170M4565

550

34000

230000

75

170M4416

170M4466

170M4516

170M4566

630

52000

350000

80

170M4417

170M4467

170M4517

170M4567

700

69500

465000

85

170M4418

170M4468

170M4518

170M4568

800

105000

725000

95

170M4419

170M4469

170M4519

170M4569

‡900

155000

‡850000

100

170M5408

170M5458

170M5508

170M5558

400

11000

74000

65

170M5409

170M5459

170M5509

170M5559

450

15500

105000

70

170M5410

170M5460

170M5510

170M5560

500

21500

145000

75

170M5411

170M5461

170M5511

170M5561

550

28000

190000

80

170M5412

170M5462

170M5512

170M5562

630

41000

275000

90

170M5413

170M5463

170M5513

170M5563

2

700

60500

405000

95

170M5414

170M5464

170M5514

170M5564

800

86000

575000

105

170M5415

170M5465

170M5515

170M5565

900

125000

840000

110

170M5416

170M5466

170M5516

170M5566

1000

180000

1250000

115

170M5417

170M5467

170M5517

170M5567

1100

245000

1600000

120

170M5418

170M5468

170M5518

170M5568

1250

365000

2400000

130

170M6408

170M6458

170M6508

170M6558

500

14000

95000

95

170M6409

170M6459

170M6509

170M6559

550

19500

135000

100

170M6410

170M6460

170M6510

170M6560

630

31000

210000

105

170M6411

170M6461

170M6511

170M6561

700

44500

300000

110

170M6412

170M6462

170M6512

170M6562

800

69500

465000

115

170M6413

170M6463

170M6513

170M6563

900

100000

670000

120

170M6414

170M6464

170M6514

170M6564

3

1000

140000

945000

125

170M6415

170M6465

170M6515

170M6565

1100

190000

1300000

130

170M6416

170M6466

170M6516

170M6566

1250

290000

1950000

140

170M6417

170M6467

170M6517

170M6567

1400

370000

2450000

155

170M6418

170M6468

170M6518

170M6568

1500

460000

3100000

160

170M6419

170M6469

170M6519

170M6569

1600

580000

3900000

160

170M6420

170M6470

170M6520

170M6570

†1800

880000

†5250000

165

170M6421

170M6471

170M6521

170M6571

‡2000

1150000

‡6350000

175

†Rated voltage (IEC) 600V.
‡Rated voltage (IEC) 550V.
• Watts loss provided at rated current.
• Microswitch indicator ordered separately. See accessories on pages 185-186.
• For fuse curves see pages 130 and 131.

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed

Fuses

High Speed Fuses

Catalog Numbers

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

126

Arc Voltage

This curve gives the peak
arc voltage, UL, which

may appear across the
fuse during its operation
as a function of the
applied working voltage,
Eg, (rms) at a power factor

of 15%.

Power Losses

Watts loss at rated current
is given in the electrical
characteristics. The curve
allows the calculation of
the power losses at load
currents lower than the
rated current. The 
correction factor, Kp, is

given as a function of the
RMS load current, Ib, in %

of the rated current.

Features and Benefits

• Excellent DC performance
• Low arc voltage and low energy let-through (I

2

t)

• Low watts loss
• Superior cycling capability

Typical Applications

• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters

Square Body US Style — 690V/700V (IEC):
40-2000A

690V/700V (IEC) 40-2000A

Specifications

D

De

es

sc

crriip

pttiio

on

n::

Square body US

style high speed fuses.

D

Diim

me

en

ns

siio

on

ns

s::

See dimensions

illustration.

R

Ra

attiin

ng

gs

s::

Volts: — 690Vac (IEC)

— 700Vac (UL)

Amps: — 40-200A

IR: — 200kA RMS Sym.

A

Ag

ge

en

nc

cy

y  IIn

nffo

orrm

ma

attiio

on

n::

CE, Designed and tested to IEC

60269: Part 4, UL Recognized. Consult Cooper Bussmann
for UL Recognition/ CSA Component Acceptance status.

Electrical Characteristics

Total Clearing I

2

t

The total clearing I

2

t at rated

voltage and at power factor
of 15% are given in the 
electrical characteristics. For
other voltages, the clearing
I

2

t is found by multiplying by

correction factor, K, given as
a function of applied working
voltage, Eg, (rms).

B

C2

D

E

E

6

H 

I

C1

A

Dimensions (mm)

Type -FU/-, -FKE/-, FU/115-, -FKE/115

S

Siiz

ze

e

A

A

B

B

B

B****

C

C1

1

C

C1

1****

C

C2

2

C

C2

2**** D

D

E

E

H

H

II

1*

50

110

148

85

123

72

110

59

45

20

10

1

50

136

157

104

126

78

100

69

53

25

14

2

50

135

159

105

125

78

99

77

61

25

14

3

51

135

155

106

125

77

97

92

76

36

16

**Valid for fuses type -FU/115 & -FKE/115.
1mm = 0.0394” / 1” = 25.4mm

K

1.5

1.0

0.5

0.4

0.3

0.2

1)

2)

100 200 300 400 500 600 690

U

L

1.4

1.2

10

3

6

8
7

9

5

4

3

E

g

200

300

400

500

600 690

K

p

1.0
0.8

0.4

0.5

0.6

0.3

0.2

0.1

30 40 50

60

70

80 90 100%

I

b

1) Rated voltage 600V.
2) Rated voltage 550V

For Other Voltage Ratings in This Body Style  

• See pages 150 (1000V) and 164 (1250V/1300V)

127

Square Body US style — 690V/700V (IEC): 40-2000A

C

Ca

atta

allo

og

g  N

Nu

um

mb

be

errs

s

--F

FK

KE

E//--

--F

FK

KE

E//1

11

15

5

E

Elle

ec

cttrriic

ca

all  C

Ch

ha

arra

ac

ctte

erriis

sttiic

cs

s

--F

FU

U//--

T

Ty

yp

pe

e  K

K

--F

FU

U//1

11

15

5

T

Ty

yp

pe

e  K

K

R

Ra

atte

ed

d

II

2

2

tt  ((A

A

2

2

S

Se

ec

c))

W

Wiitth

ho

ou

utt

IIn

nd

diic

ca

atto

orr

W

Wiitth

ho

ou

utt

IIn

nd

diic

ca

atto

orr

C

Cu

urrrre

en

ntt

C

Clle

ea

arriin

ng

g

W

Wa

atttts

s

IIn

nd

diic

ca

atto

orr

ffo

orr  M

Miic

crro

o

IIn

nd

diic

ca

atto

orr

ffo

orr  M

Miic

crro

o

S

Siiz

ze

e

R

RM

MS

S--A

Am

mp

ps

s

P

Prre

e--a

arrc

c

a

att  6

66

60

0V

V

L

Lo

os

ss

s

170M3608

170M3658

170M3708

170M3758

40

40

270

9

170M3609

170M3659

170M3709

170M3759

50

77

515

11

170M3610

170M3660

170M3710

170M3760

63

115

770

14

170M3611

170M3661

170M3711

170M3761

80

185

1250

18

170M3612

170M3662

170M3712

170M3762

100

360

2450

21

170M3613

170M3663

170M3713

170M3763

125

550

3700

26

170M3614

170M3664

170M3714

170M3764

160

1100

7500

30

170M3615

170M3665

170M3715

170M3765

200

2200

15000

35

170M3616

170M3666

170M3716

170M3766

1*

250

4200

28500

40

170M3617

170M3667

170M3717

170M3767

315

7000

46500

50

170M3618

170M3668

170M3718

170M3768

350

10000

68500

55

170M3619

170M3669

170M3719

170M3769

400

15000

105000

60

170M3620

170M3670

170M3720

170M3770

450

21000

140000

65

170M3621

170M3671

170M3721

170M3771

500

27000

180000

70

170M3622

170M3672

170M3722

170M3772

550

34000

230000

75

170M3623

170M3673

170M3723

170M3773

630

48500

325000

80

170M4608

170M4658

170M4708

170M4758

200

1650

11500

45

170M4609

170M4659

170M4709

170M4759

250

3100

21000

55

170M4610

170M4660

170M4710

170M4760

315

6200

42000

58

170M4611

170M4661

170M4711

170M4761

350

8500

59000

60

170M4612

170M4662

170M4712

170M4762

400

13500

91500

65

170M4613

170M4663

170M4713

170M4763

1

450

17000

120000

70

170M4614

170M4664

170M4714

170M4764

500

25000

170000

72

170M4615

170M4665

170M4715

170M4765

550

34000

230000

75

170M4616

170M4666

170M4716

170M4766

630

52000

350000

80

170M4617

170M4667

170M4717

170M4767

700

69500

465000

85

170M4618

170M4668

170M4718

170M4768

800

105000

725000

95

170M4619

170M4669

170M4719

170M4769

‡900

155000

‡850000

100

170M5608

170M5658

170M5708

170M5758

400

11000

74000

65

170M5609

170M5659

170M5709

170M5759

450

15500

105000

70

170M5610

170M5660

170M5710

170M5760

500

21500

145000

75

170M5611

170M5661

170M5711

170M5761

550

28000

190000

80

170M5612

170M5662

170M5712

170M5762

630

41000

275000

90

170M5613

170M5663

170M5713

170M5763

2

700

60500

405000

95

170M5614

170M5664

170M5714

170M5764

800

86000

575000

105

170M5615

170M5665

170M5715

170M5765

900

125000

840000

110

170M5616

170M5666

170M5716

170M5766

1000

180000

1250000

115

170M5617

170M5667

170M5717

170M5767

1100

245000

1600000

120

170M5618

170M5668

170M5718

170M5768

1250

365000

2400000

130

170M6608

170M6658

170M6708

170M6758

500

14000

95000

95

170M6609

170M6659

170M6709

170M6759

550

19500

135000

100

170M6610

170M6660

170M6710

170M6760

630

31000

210000

105

170M6611

170M6661

170M6711

170M6761

700

44500

300000

110

170M6612

170M6662

170M6712

170M6762

800

69500

465000

115

170M6613

170M6663

170M6713

170M6763

900

100000

670000

120

170M6614

170M6664

170M6714

170M6764

1000

140000

945000

125

170M6615

170M6665

170M6715

170M6765

3

1100

190000

1300000

130

170M6616

170M6666

170M6716

170M6766

1250

290000

1950000

140

170M6617

170M6667

170M6717

170M6767

1400

370000

2450000

155

170M6618

170M6668

170M6718

170M6768

1500

460000

3100000

160

170M6619

170M6669

170M6719

170M6769

1600

580000

3900000

160

170M6620

170M6670

170M6720

170M6770

†1800

880000

†5250000

165

170M6621

170M6671

170M6721

170M6771

‡2000

1150000

‡6350000

175

†Rated voltage (IEC) 600V.
‡Rated voltage (IEC) 550V.
• Watts loss provided at rated current.
• Microswitch indicator ordered separately. See accessories on pages 185-186.
• For fuse curves see pages 130 and 131.

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed

Fuses

High Speed Fuses

Catalog Numbers

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

128

Arc Voltage

This curve gives the peak
arc voltage, UL, which

may appear across the
fuse during its operation
as a function of the
applied working voltage,
Eg, (rms) at a power factor

of 15%.

Power Losses

Watts loss at rated current
is given in the electrical
characteristics. The curve
allows the calculation of
the power losses at load
currents lower than the
rated current. The 
correction factor, Kp, is

given as a function of the
RMS load current, Ib, in %

of the rated current.

Features and Benefits

• Excellent DC performance
• Low arc voltage and low energy let-through (I

2

t)

• Low watts loss
• Superior cycling capability

Typical Applications

• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters

Square Body French Style — 690V/700V (IEC/UL):
40-1500A

690V/700V (IEC/UL) 40-1500A

Specifications

D

De

es

sc

crriip

pttiio

on

n::

Square body French

style high speed fuses.

D

Diim

me

en

ns

siio

on

ns

s::

See dimensions

illustration.

R

Ra

attiin

ng

gs

s::

Volts: — 690Vac (IEC)

— 700Vac (UL)

Amps: — 40-1500A

IR: — 200kA RMS Sym.

A

Ag

ge

en

nc

cy

y  IIn

nffo

orrm

ma

attiio

on

n::

CE, Designed and tested to IEC

60269: Part 4, UL Recognized.

Electrical Characteristics

Total Clearing I

2

t

The total clearing I

2

t at

rated voltage and at power
factor of 15% are given in
the electrical 
characteristics. For other
voltages, the clearing I

2

t is

found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).

A

B

C

D

E

J

E

6

H

I

Dimensions (mm)

Type -E/-, -EKN/-

S

Siiz

ze

e

A

A

B

B

C

C

D

D

E

E

H

H

II

J

J

1*

50

102

76

59

45

18

9

13

1

50

111

86

69

53

25

11

11

2

50

126

91

77

61

30

13

12

3

51

126

91

92

76

36

13

13

1mm = 0.0394” / 1” = 25.4mm

K

1.5

1.0

0.5

0.4

0.3

0.2

E

g

100 200 300 400 500 600 690

U

L

1.4

1.2

10

3

6

8
7

9

5

4

3

E

g

200

300

400

500

600 690

K

p

1.0
0.8

0.4

0.5

0.6

0.3

0.2

0.1

30 40 50

60

70

80 90 100%

I

b

Square Body French Style — 690V/700V (IEC/UL): 40-1500A

129

1x10

2

10

3

10

4

10

5

1x10

–4

10

–3

10

–2

10

–1

10

0

10

1

10

2

10

3

10

4

Prospective Current In Amperes RMS

Vir

tual Pre-Arcing 

Time In Seconds

400A

450A

500A

550A

630A

700A

800A

900A

1000A

1100A

1250A

A

A

C

Ca

atta

allo

og

g  N

Nu

um

mb

be

errs

s

--E

E//

--E

EK

KN

N//--

E

Elle

ec

cttrriic

ca

all  C

Ch

ha

arra

ac

ctte

erriis

sttiic

cs

s

T

Ty

yp

pe

e  T

T

T

Ty

yp

pe

e  K

K

R

Ra

atte

ed

d

II2

2tt  ((A

A2

2  S

Se

ec

c))

IIn

nd

diic

ca

atto

orr

IIn

nd

diic

ca

atto

orr

C

Cu

urrrre

en

ntt

C

Clle

ea

arriin

ng

g

W

Wa

atttts

s

F

Fo

orr  M

Miic

crro

o

ffo

orr  M

Miic

crro

o

S

Siiz

ze

e

R

RM

MS

S--A

Am

mp

ps

s

P

Prre

e--a

arrc

c

a

att  6

66

60

0V

V

L

Lo

os

ss

s

170M3308

170M3358

40

40

270

9

170M3309

170M3359

50

77

515

11

170M3310

170M3360

63

115

770

14

170M3311

170M3361

80

185

1250

18

170M3312

170M3362

100

360

2450

21

170M3313

170M3363

125

550

3700

26

170M3314

170M3364

160

1100

7500

30

170M3315

170M3365

1*

200

2200

15000

35

170M3316

170M3366

250

4200

28500

40

170M3317

170M3367

315

7000

46500

50

170M3318

170M3368

350

10000

68500

55

170M3319

170M3369

400

15000

105000

60

170M3320

170M3370

450

21000

140000

65

170M3321

170M3371

500

27000

180000

70

170M4308

170M4358

200

1650

11500

45

170M4309

170M4359

250

3100

21000

55

170M4310

170M4360

315

6200

42000

58

170M4311

170M4361

350

8500

59000

60

170M4312

170M4362

400

13500

91500

65

170M4313

170M4363

1

450

17000

120000

70

170M4314

170M4364

500

25000

170000

72

170M4315

170M4365

550

34000

230000

75

170M4316

170M4366

630

52000

350000

80

170M4317

170M4367

700

69500

465000

85

170M4318

170M4368

800

105000

725000

95

170M5308

170M5358

400

11000

74000

65

170M5309

170M5359

450

15500

105000

70

170M5310

170M5360

500

21500

145000

75

170M5311

170M5361

550

28000

190000

80

170M5312

170M5362

2

630

41000

275000

90

170M5313

170M5363

700

60500

405000

95

170M5314

170M5364

800

86000

575000

105

170M5315

170M5365

900

125000

840000

110

170M5316

170M5366

1000

180000

1250000

115

170M6308

170M6358

500

14000

95000

95

170M6309

170M6359

550

19500

135000

100

170M6310

170M6360

630

31000

210000

105

170M6311

170M6361

700

44500

300000

110

170M6312

170M6362

800

69500

465000

115

170M6313

170M6363

3

900

100000

670000

120

170M6314

170M6364

1000

140000

945000

125

170M6315

170M6365

1100

190000

1300000

130

170M6316

170M6366

1250

290000

1950000

140

170M6317

170M6367

1400

370000

2450000

155

170M6318

170M6368

1500

460000

3100000

160

• Watts loss provided at rated current.
• Microswitch indicator ordered separately. See accessories on pages 185-186.
• For fuse curves see pages 130 and 131.

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed

Fuses

High Speed Fuses

Catalog Numbers

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

130

Square Body Size 1*, 1 — 690V/700V (IEC/UL): 40-2000A

1x10

2

10

3

10

4

10

5

1x10

–4

10

–3

10

–2

10

–1

10

0

10

1

10

2

10

3

10

4

Prospective Current In Amps RMS

V

irtual Pre-Arcing 

T

ime In Seconds

200A

250A

315

A

350A

400

A

450A

500

A

550A

630

A

700A

800

A

900A

A

A

Size 1 — 200-900A: 690V

Time-Current Curve

Size 1* — 40-630A: 690V

Time-Current Curve

1x10

2

10

3

10

4

10

5

10

6

2x10

2

10

3

10

4

10

5

Prospective Short-Circuit Current Symmetrical RMS

Peak Let-Through Current

50A

40A

63A

80A

100A

125A

160A

200A

250A

315A

350A

400A

450A

500A

550A

630A

A

B

1x10

2

10

3

10

4

10

5

10

6

2x10

2

10

3

10

4

10

5

P

eak Let-Through Current

200A

250A

315A

350A

400A

450A

500A

550A

630A

700A

800A

900A

A

B

Peak Let-Through Curve

Peak Let-Through Curve

900 amp fuse is derated to 550V (IEC).

Data Sheet: 17056316

Data Sheet: 17056314

131

Square Body Size 2, 3 — 690V/700V (IEC/UL):
40-2000A

1x10

2

10

3

10

4

10

5

1x10

–4

10

–3

10

–2

10

–1

10

0

10

1

10

2

10

3

10

4

Prospective Current In Amps RMS

V

irtual Pre-Arcing 

T

ime In Seconds

400A

450A

500A

550A

630A

700A

800A

900A

1000A

11

0

0

A

1250A

A

A

1x10

2

10

3

10

4

10

5

1x10

–4

10

–3

10

–2

10

–1

10

0

10

1

10

2

10

3

10

4

Prospective Current In Amps RMS

V

irtual Pre-Arcing 

T

ime In Seconds

500A 550A

630A

700A

800A

900A

1000

A

1

100A

1250

A

1400A

1500

A

1600A

1800

A

2000A

A

A

Size 3 — 500-2000A: 690V

Time-Current Curve

Size 2 — 400-1250A: 690V

Time-Current Curve

1x10

3

10

4

10

5

10

6

10

7

2x10

3

10

4

10

5

10

6

Prospective Short-Circuit Current Symmetrical RMS

P

eak Let-Through Current

400A

450A

500A

550A

630A

700A

800A

900A

1000A

1100A

1250A

A

B

1x10

3

10

4

10

5

10

6

10

7

2x10

3

10

4

10

5

10

6

Prospective Short-Circuit Current Symmetrical RMS

P

eak Let-Through Current

500A

550A

630A

700A

800A

900A

1000A

1100A

1250A

1400A

1500A

1600A

1800A

2000A

A

B

Peak Let-Through Curve

Peak Let-Through Curve

1800A fuse is derated to 600V (IEC).
2000A fuse is derated to 550V (IEC).

Data Sheet: 17056318

Data Sheet: 17056320

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed

Fuses

High Speed Fuses

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

132

Arc Voltage

This curve gives the peak
arc voltage, UL, which

may appear across the
fuse during its operation
as a function of the
applied working voltage,
Eg, (rms) at a power factor

of 15%.

Power Losses

Watts loss at rated current
is given in the electrical
characteristics. The curve
allows the calculation of
the power losses at load
currents lower than the
rated current. The 
correction factor, Kp, is

given as a function of the
RMS load current, Ib, in %

of the rated current.

Features and Benefits

• Excellent DC performance
• Low arc voltage and low energy let-through (I

2

t)

• Low watts loss
• Superior cycling capability

Typical Applications

• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters

Square Body DIN 43 620 — 690V/700V (IEC/UL):
40-1000A

690V/700V (IEC/UL) 40-1000A

Specifications

D

De

es

sc

crriip

pttiio

on

n::

Square body DIN

43 620 blade style high speed
fuses.

D

Diim

me

en

ns

siio

on

ns

s::

See dimensions

illustration.

R

Ra

attiin

ng

gs

s::

Volts: — 690Vac (IEC)

— 700Vac (UL)

Amps: — 40-1000A

IR: — 200kA RMS Sym.

A

Ag

ge

en

nc

cy

y  IIn

nffo

orrm

ma

attiio

on

n::

CE, Designed and tested to IEC

60269: Part 4, UL Recognized.

Electrical Characteristics

Total Clearing I

2

t

The total clearing I

2

t at

rated voltage and at power
factor of 15% are given in
the electrical 
characteristics. For other
voltages, the clearing I

2

t is

found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).

A

B

D

E

F

6

H

Indicator

Dimensions (mm)

Type DIN 1*, DIN 2, DIN 3

Size

A

B

D

E

F

H

1*

69

135

58

45

40

20

2

69

150

71

55

48

26

3

68

150

88

76

60

33

1mm = 0.0394” / 1” = 25.4mm

For Full Range Fuses in This Body Style  

• See page 140

133

Square Body DIN 43 620 — 690V/700V (IEC/UL):
40-600A

C

Ca

atta

allo

og

g  N

Nu

um

mb

be

errs

s

E

Elle

ec

cttrriic

ca

all  C

Ch

ha

arra

ac

ctte

erriis

sttiic

cs

s

D

DIIN

N  T

Ty

yp

pe

e  T

T

R

Ra

atte

ed

d

II

2

2

tt  ((A

A

2

2

S

Se

ec

c))

IIn

nd

diic

ca

atto

orr

C

Cu

urrrre

en

ntt

C

Clle

ea

arriin

ng

g

W

Wa

atttts

s

ffo

orr  M

Miic

crro

o

S

Siiz

ze

e

R

RM

MS

S--A

Am

mp

ps

s

P

Prre

e--a

arrc

c

a

att  6

66

60

0V

V

L

Lo

os

ss

s

170M3808D

40

40

285

4

170M3809D

50

78

550

4.5

170M3810D

63

120

850

6.5

170M3811D

80

185

1350

8.5

170M3812D

100

360

2600

10

170M3813D

125

550

3900

11

170M3814D

160

1150

8250

12

170M3815D

200

2300

16500

12.5

170M3816D

1*

250

4350

31000

16

170M3817D

315

7300

52000

20

170M3818D

350

10000

73000

21.5

170M3819D

400

16000

115000

60

170M4863D

450

21500

155000

26.3

170M4864D

500

27000

190000

28.5

170M4865D

550

33500

240000

33

170M4866D

630

48500

345000

37.5

170M4867D

700

69500

495000

39

170M5808D

400

11000

79000

29

170M5809D

450

16000

115000

32

170M5810D

500

21500

155000

34

170M5811D

550

29000

215000

36

170M5812D

2

630

41000

295000

42

170M5813D

700

60500

430000

43

170M5814D

800

86000

610000

48

170M5820D

900

125000

895000

52

170M5816D

1000

180000

1300000

53

170M5817D

1100

245000

1750000

56

170M6808D

500

14000

99500

43

170M6809D

550

19500

140000

44

170M6810D

630

31000

220000

45

170M6811D

700

45000

320000

46

170M6812D

800

69500

490000

48

170M6813D

3

900

100000

720000

50

170M6814D

1000

140000

985000

56

170M6892D

1100

190000

1400000

57

170M8554D

1250

300000

2150000

61

170M8555D

1400

380000

2700000

70

170M8556D

1500

470000

3350000

72

170M8557D

1600

585000

4150000

74

• Watts loss provided at rated current.
• Microswitch indicator ordered separately. See accessories on pages 185-186.
• For fuse curves see page 134.

Rated Current

The rated current of this fuse range has been given with 
copper conductors that have a current density of 1.3 A/mm

2

(IEC 60269-4). For conductor cross section according to IEC
60269-1, the fuses must be derated. Please contact Cooper
Bussmann for application assistance.

Size 1* — 40-630A: 690V

Time-Current Curve

Peak Let-Through Curve

Data Sheet: 17056314

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed

Fuses

High Speed Fuses

Catalog Numbers

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

134

Square Body DIN 43 620 — 690V/700V (IEC/UL):
40-1000A

Size 3 — 500-2000A: 690V

Time-Current Curve

Peak Let-Through Curve

Size 2 — 400-1250A: 690V

Time-Current Curve

Peak Let-Through Curve

Data Sheet: 17056318

Data Sheet: 17056320

135

Arc Voltage

This curve gives the peak
arc voltage, UL, which

may appear across the
fuse during its operation
as a function of the
applied working voltage,
Eg, (rms) at a power 

factor of 15%.

Power Losses

Watts loss at rated 
current is given in the
electrical characteristics.
The curve allows the 
calculation of the power
losses at load currents
lower than the rated 
current. The correction
factor, Kp, is given as a

function of the RMS load
current, Ib, in % of the

rated current.

Features and Benefits

• Excellent DC performance
• Low arc voltage and low energy let-through (I

2

t)

• Low watts loss
• Superior cycling capability

Typical Applications

• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters

Square Body Flush End Contact — 690/700V (IEC/UL):
1000-4000A

690V (IEC) 1000-4000A

Specifications

D

De

es

sc

crriip

pttiio

on

n::

Square body flush

end contact high speed fuses.

D

Diim

me

en

ns

siio

on

ns

s::

See dimensions

illustrations.

R

Ra

attiin

ng

gs

s::

Volts: — 690Vac

Amps: — 1000-4000A

IR: — 200kA RMS Sym.

A

Ag

ge

en

nc

cy

y  IIn

nffo

orrm

ma

attiio

on

n::

CE, Designed and tested to IEC

60269: Part 4, UL Recognized.

Electrical Characteristics

Total Clearing I

2

t

The total clearing I

2

t at

rated voltage and at power
factor of 15% are given in
the electrical 
characteristics. For other
voltages, the clearing I

2

t is

found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).

K

1.5

1.0

0.5

0.4

0.3

0.2

E

g

1)

100 200 300 400 500 600 690

K

p

30 40 50

60

70

80 90 100%

I

b

1.0
0.8

0.4

0.5

0.6

0.3

0.2

0.1

1) Rated voltage 500V

U

L

1.4

1.2

10

3

6

8
7

9

5

4

3

E

g

200

300

400

500

600 690

53

105

67

15

F

G

105

Ø4

Ø56

Dimensions (mm)

Type 4B/-, 4BKN/-, 4G/-, 4GKN/-

S

Siiz

ze

e

F

F  ((iin

n))

G

G

4B

M10 10 deep

33

4G

1

⁄

2

” -13 UNC-2B 10 deep

38

1mm = 0.0394” / 1” = 25.4mm

For Other Voltage Ratings in This Body Style  

• See pages 154 (1000V) and 168 (1250V)

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed

Fuses

High Speed Fuses

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

High Speed Fuses

136

Square Body Flush End Contact — 690V (IEC):
1000-4000A

1x10

3

10

4

10

5

10

6

1x10

–4

10

–3

10

–2

10

–1

10

0

10

1

10

2

10

3

10

4

Prospective Current in Amps RMS

V

irtual Pre-Arcing 

T

ime In Seconds

1000A

1250A

1400

A

1600A

2000

A

2200A

2500

A

3000A

3500

A

4000A

A

A

Size 4 — 1000-4000A: 690V

Time-Current Curve

1x10

3

10

4

10

5

10

6

10

7

2x10

3

10

4

10

5

10

6

Prospective Short-Circuit Current Symmetrical RMS

P

eak Let-Through Current

1000A

1250A

1400A

1600A

2000A

2200A

2500A

3000A

3500A

4000A

A

B

Peak Let-Through Curve

4000A fuse is derated to 500V (IEC).

C

Ca

atta

allo

og

g  N

Nu

um

mb

be

errs

s

--B

BK

KN

N//--

--G

GK

KN

N//--

E

Elle

ec

cttrriic

ca

all  C

Ch

ha

arra

ac

ctte

erriis

sttiic

cs

s

--B

B//--

T

Ty

yp

pe

e  K

K

--G

G//--

T

Ty

yp

pe

e  K

K

R

Ra

atte

ed

d  C

Cu

urrrre

en

ntt  R

RM

MS

S

II

2

2

tt  ((A

A

2

2

S

Se

ec

c))

W

Wa

atttts

s  L

Lo

os

ss

s

V

Viis

su

ua

all

IIn

nd

diic

ca

atto

orr

V

Viis

su

ua

all

IIn

nd

diic

ca

atto

orr

N

No

orrm

m..

L

Liiq

qu

uiid

d

C

Clle

ea

arriin

ng

g

N

No

orrm

m..

L

Liiq

qu

uiid

d

IIn

nd

diic

ca

atto

orr

ffo

orr  M

Miic

crro

o

IIn

nd

diic

ca

atto

orr

ffo

orr  M

Miic

crro

o

S

Siiz

ze

e

C

Co

oo

oll..

C

Co

oo

oll..

P

Prre

e--a

arrc

c

a

att  6

66

60

0V

V

C

Co

oo

oll..

C

Co

oo

oll..

170M7058

170M7078

170M7098

170M7118

1000

1350

76000

505000

175

315

170M7059

170M7079

170M7099

170M7119

1250

1700

145000

965000

195

355

170M7060

170M7080

170M7100

170M7120

1400

1900

205000

1400000

205

375

170M7061

170M7081

170M7101

170M7121

1600

2200

305000

2050000

220

405

170M7062

170M7082

170M7102

170M7122

4

2000

2700

600000

3950000

245

445

170M7063

170M7083

170M7103

170M7123

2500

3400

1200000

7800000

275

495

170M7064

170M7084

170M7104

170M7124

3000

4100

2000000

13500000

305

555

170M7065

170M7085

170M7105

170M7125

3500

4700

3250000

22000000

325

585

170M7066

170M7086

170M7106

170M7126

†4000

†5400

4700000

†28000000

355

640

†Rated voltage (IEC) 500V.
• Watts loss provided at rated current.
• Liquid Cool. = Liquid cooling. Temperature on the terminals not to exceed 60°C.
• Microswitch indicator ordered separately. See accessories on pages 185-186.

Data Sheet: 17056328

Catalog Numbers