Telecom / Datacom

www.cotek.com.tw

COTEK ELECTRONIC IND. CO., LTD

No.33, Sec. 2, Renhe Rd., Daxi Dist., Taoyuan City 33548, Taiwan

+886 3-389-1999 

+886 3-380-2333 

2021 / 2022 Product Catalog

Professional Power Solutions Design and Manufacturing

Rack Mount Power Systems 

Powerful Solutions for Critical Data and

Telecom Applications

01

2018

2019

2020

2021

Professional Power Solutions Design and Manufacturing

No. 33, Sec. 2, Renhe Rd., Daxi Dist., Taoyuan City 33548, Taiwan

+886 3-389-1999

http://www.cotek.com.tw/

+886 3-380-2333

COTEK Headquarters, Taiwan

+86 769-81282695

+86 769-81282615

Building No.121, No.13, Xinan Rd., Xintaiyang Industrial Park,
Lincun Village, Tangxia Township, Dongguan City, 
Guangdong Province, China

COTEK Factory, Dongguan China

COTEK is committed to providing proactive service, innovative technology and 
total quality assurance since COTEK was established in 1986. With Corporate 

Offices in Tao-yuan, Taiwan, COTEK is a technology-oriented company focusing 
on developing, designing and manufacturing products including:

DC / AC Pure Sine Wave Inverter 
Inverter / Charger
Battery Charger
AC / DC Switching Mode Power Supply

D&B Top 1000 Elite SME Award

D-U-N-S Number : 65-728-6662

1

2

4

3

One-stop shopping

Diverse power product lines that 

fulfill our business partner’s power 

requirement across multiple sectors 
(AC/DC, DC/AC, Chargers and 
Inverter Chargers)

World-Class R&D Team

30 years’ software & hardware 
development capability

Product Safety Approvals

Meet the global latest safety standards

Flexibility

To provide off-the-shelf and customized 

design service

Prompt Service

Authorized distributor partners in over 

38 countries to ensure local services in 

the same time zone

Production Experience

Sold more than 20 million pcs to the 
worldwide market

RoHS

COMPLIANT

REACH

COMPLIANT

Why COTEK

Applications

Telecom, Data Center

Uninterruptable Power System (UPS)

Rack mount Power Backup System

Energy Station System (ESS)

 Satellite / Power Station

Railway

Broadcasting Radio Station

1

2

3

Rack Mount Power Systems 

COTEK Rack Mount Power System provides reliable and high-quality DC 
& AC power solutions, designed with advanced power electronic and 

microprocessor technology.

Modular Battery

MBS

Maintenance Manual Bypass Switch 
(65A, 130A, 260A)

1600VA inverter module support 

(Built at the request)

Powerful Solutions for Mission Critical Equipment

DC Power and AC Power

RA-3048 SMR  M-platform

SR-1600 PLUS

SR-2500/3500

100-120Vac & 200-240Vac                

24Vdc / 48Vdc version

100-120Vac & 200-240Vac                

24Vdc / 48Vdc version

DC power

This platform provides 200A @ 48V capability in a 

4U rack structure

 2500VA/3500VA inverter module support

RA-3048 SMR  S-platform

This platform provides 100A @ 48V capability in a 

2U rack structure

AC power

Scan QR Code to view

the User’s Manual

CE-R1

1

1

2

3

4

2

3

4

SMR button 

SMR related parameter settings  

Main menu

System level related parameter settings  

Battery button

Battery status and charging settings   

Alarms log 

Event log display   

Modular Switching Mode 

Rectifier

RA-3048

RA-3048

  

Switching Mode Rectifier is a modular and 

reliable design AC-DC power system. Single module can 

output 3KW @ 220Vac which is a compact and high power 
density solution to provide 48Vdc power under telecom/

industrial applications. Regular stocking items S & M-platform 
are available for constant planning

Features

CE-R1 (Centrol Control Unit) Setting

Compact but Powerful 

(3KW , 1U high per module) 

2

Hot-swappable / hot-pluggable during 

operation

Active load sharing and battery monitoring 

by CE-R1

High efficiency >95%

1

3

4

DC power

AC

Distribution

BPB

MUIB

DC

Distribution

AC Supply

AC 

CE-R1

RA-3048

(Rectifier)

To PC

T  batt
T  am
Remote Alarms

(Voltage-free contacts)

Loads

1~2 Batteries

DC 

S / M Platform

OPEN

LOCK

OPEN

LOCK

OPEN

LOCK

LVDS

Signal /
data  transmission

CE-R1 :

 Central control unit 

BPB :

 Back panel

MUIB :

 Interface board

LVDS :

 Low Voltage Disconnect Switch

Tbatt :

 Battery Temperature

Tam :

 Ambient Temperature

144mm 

328 mm

41mm

Scan QR Code to view

the User’s Manual

Modular Inverters

SR-1600 PLUS

The SR-1600 Plus is a highly reliable, modular design DC-AC 

inverter system, designed with advanced power electronic and 
microprocessor technology

Load

Features

0 Second transfer-switch  between AC and DC, avoid damage to the instrument 
caused by transient voltage 

Seamless switch between AC and DC

1

Reduce energy loss and heat dissipation

Output Efficiency Up to 95% 

2

Built-in Static Transfer Switch

3

3-in-1 Operating Modes

Utility Power / 

Generator Power

Battery

SR-1600 PLUS

Maintenance

Bypass Switch

Block diagram

Maintenance Manual Bypass System 
Can Provide Continuous Power Supply 
When All Modules Are Updated

Easy Maintenance by Hot Plug and
Swappable Module

4 modules in one 2U shelf : 

6.4KW

Support up to 8 shelves : 

51.2KW 

Support output parallel connection 

and redundancy (N+1)

US Patent no. : US10-530-267

DC Mode

Sharing Mode

AC Mode

SR-1600

PLUS

Load

Battery

Utility Power / 

Generator Power

SR-1600

PLUS

Load

Battery

Utility Power / 

Generator Power

SR-1600

PLUS

Load

Battery

Utility Power / 

Generator Power

    

  P

AT

EN

TE

D      

PATENTE

D

    P

ATE

NTED     PA

TE

N

TE

D

PATENTED

Patented technology

AC power

Scan QR Code to view

the User’s Manual

Scan QR Code to view

the User’s Manual

User-friendly LCM module
RS-232 communication port

Pure sine wave output (THD < 2%)

Selectable on-line / off-line modes

Standard 19” 1U rack mount

44 mm

345mm

483 mm

SR-1000T

Rackmount Inverters

SR-2500/3500

Features

Block diagram

AC power

Flexible for deviated AC loads : Fixed installation 

(Terminal) and Temporary use (Socket)

AC output types: Terminal and socket

2

Suitable for commercial & industrial 

applications

Provide uninterrupted power to your load such as 
PC or storage device. 

1Ф3W / 3Ф4W

 Power Systems

Static Transfer Switches (STS) 

1

3

Parallel 

RJ-45

SR

Series 

SR

Series 

SR

Series 

Load

Utility Power / 

Generator Power

Solar

Battery

SMR

      N+1 redundancy            Scalable power             AC bypass        

Parallel redundancy design

* N+1 means a spare module is used for redundant supply, not regular output supply.

1

1

2U

   

1 rack + 4 module

2

2

2U + CR-21 PLUS

  

1 rack + 3 module + CR-21 PLUS + SN-1 PLUS

2U + CR-21 PLUS  

2U

4U+ CR-21 PLUS  

3

3

4U + CR-21 PLUS

  

2 rack + 7 module + CR-21 PLUS + SN-1 PLUS 

Rack

Module

SN-1 PLUS

CR-21 PLUS

Rack 

height

Present

S-Platform

M-Platform

No. Module

1
2
3
4
1
2
3
1
2
3
4
5
6
7

No. Module

3
2
1
0
2
1
0
6
5
4
3
2
1
0

1600

3200
4800
6400

1600

3200
4800

1600

3200
4800
6400
8000
9600

11200

01-C101-0001

6KW

125 A

2U (3.5”)

1

3

Up to 4

Up to 2

No

Up to 1

No

2U (3.5”)  19” (rack)

 Depth: 10.12”

01-C101-0002

12KW

250 A

4U (7”)

1

5

Up to 10

Up to 2

Yes

Up to 2

Yes

4U (7”)  19” (rack) 

Depth: 10.12”

COTEK Part Number

Output Power (N+1)*
Maximum Output DC Current (N+1)

Total Height
Controller Slots

Rectifier Slots

Protected Load Outputs
Protected Battery Sets
Surge Protection Device

LVDS Switch

Additional Distribution Panel Option
Distribution Dimensions

DC terminal type

VA

4800
3200

1600

0

3200

1600

0

9600
8000
6400
4800
3200

1600

0

VA

Future 

(Expandability)

Maximum

No. Module

VA

4

6400

7

11200

3

4800

1

S-platform   

RA-3048 x 3 + CE-R1 

2

M-platform   

RA-3048 x 5 + CE-R1 

RA-3048

CE-R1 

Module

1600VA inverter module 
support 
       

Rack

SN-1 Plus

Display and Setting via 
SNMP Ethernet

(NMS / Web Browser)

MBS

Maintenance Manual 
Bypass Switch 
(65A, 130A, 260A)

Maintenance Manual Bypass 
Switch (65A, 130A, 260A)

CR-21 Plus

Display & Setting via 

LCM Controller

FAN Module

Front-end changeable fan

module

Dummy Module

For the empty module 

space fulfillment

DC Power 

System Packs

AC Power

System Packs

Accessories

RA-3048

3000W Switching Mode 

Rectifier(SMR) module

       

CE-R1

Circuit Breaker

Central Control Unit

LVDS

AC input switch

Battery DC switch

SPD

Load Breaker 

Alarm DIP Switch

Accessories

1. TB Terminal    2. Euroblock terminal

AC Output

S-platform

M-platform

AC Input

Control & Signal

Protection

Transfer Performance

DC Input

Environment

Other

Safety & EMC

SR-1600

PLUS

Specification

Rating Power
Short Time Overload Capacity
Nominal Voltage (AC)
Output Voltage Range (AC)
Efficiency AC Mode
Efficiency DC Mode
Frequency Range
THD (Above 80% Resistive Load)
Turn ON Delay
Crest Factor at Nominal Power

Nominal Voltage (AC)
Voltage Range (AC)
Power Factor@Rating Power
Frequency Range
Synchronization Range

120VAC
90~130VAC ± 3% (adjustable from 75V to 132.5V)
> 0.99
50 / 60 Hz
47~53 Hz, 57~63 Hz

Indicator
Advanced Control

LED, Buzzer Alarm, Event Log
RS-485 (Modbus) embedded, CR-21 Plus (Optional), SN-1 Plus SNMP (Optional)

Over Voltage, Under Voltage, Overload, Over Temperature, Reverse Polarity, Short Circuit

Input / Output Protection

0 sec.

Inverter / Utility AC

Nominal Voltage (DC)
Voltage Range (DC)
Nominal Current (at 24Vdc/48Vdc)
Max. Input Current (15 Sec.)

24VDC
18~34VDC ± 3%
56A
90A

1200W / 1600VA
150% rated power (15 seconds)
120VAC
100~120VAC ± 3%
94%
89%
50 / 60 Hz
< 3%
<10 sec.

DC mode: 3 times nominal current      AC mode: 6 times nominal current

1600W / 1600VA

90%

48VDC
36~68VDC ± 3%
37A
60A

24VDC
18~34VDC ± 3%
56A
90A

EN62368-1
EN55032 Class B; EN55024; EN300386
EN 61000-3-2, -3-3, -6-1, -6-3;
IEC 61000-4-2, 3, 4, 5, 6, 8, 11

48VDC
36~68VDC ± 3%
37A
60A

Operating Temp. 
Storage Temp.

Full Load -25

o

C ~ 40

o

C ; Power De-rating from 40°C to 60°C        

-40

o

C ~ 70

o

C , 95% RH non-condensing

Dimension (WxHxD) - Module
Dimension (WxHxD) - Shelf
Packing

105x83x410 mm / 4.13x3.27x16.14 inch
446x85x509 mm / 17.56x3.35x20.04 inch
Module

：

3.8kg; 4pcs / 17.2kg; Shelf

：

6.5kg; 1pc / 7.5kg

Safety Standards
EMC Standards

Meet UL62368-1
FCC class B

1200W / 1600VA

230VAC
200~240VAC ± 2%
95%
90%

DC mode: 3 times nominal current      AC mode: 10 times nominal current

230VAC
180~260VAC ± 2% (adjustable from 150V to 265V)

1600W / 1600VA

91%

DC Power System

DC Rectifier

Packing Information

DC Input

AC Input

AC Output Connection 

Type

PCS/CTN

N.W./CTN 

(KGS)

G.W./CTN

(KGS)

CBM /CTN

PCS /PLT

CARTONS/

PLT

SR -1000

SR - 1600 Module

SR - 1600 Rack

24V, 48V

24V, 48V

IEC, HW

HW

HW

2

4

1

15

15.2

6.5

16

16.8

7.5

0.08

0.09

0.08

64

80

16

32

20

16

75-132V,

150-265V

100-120V,

200-240V

100-120V,

200-240V

97-123V,

194-246V

75-132V,

150-265V

*The above information is for reference only, subject to change without notice

RA-3048

Input

Output

Environmental

Mechanical

Wide Input Range: 100-275 Vac, Max 3kW (100-184 Vac at de-rated output power)
16 ARMS
45-66 Hz
>0.99 at 50-100% load
Fuse

> 95% (Load 40%~80%)
IEEEE C 62.41 / IEC 61000-4-5 / IEC 61000-4-4

54 Vdc (adjustable range : 45-58 Vdc )
±1.0% (10-100% load) 
62.5 A (@ 48 Vdc)
3000W @ 220Vac;  1000W @ 100Vac
±5% of maximum current from 10 to 100% load sharing from CE-R1

Over-temperature - gradual reduction of current limit if heat-sink temperature exceeds pre-set limit
±5.0% for 10-90% or 90-10% load variation, output voltage regulation time < 2.5%. +/-1% within2ms of step change.
<2mVrms Psophometric weighting;< 10mVrms 10kHz - 100MHz; < 100mV peak to peak 0~30MHz bandwidth
< 100 mV peak to peak, 30 MHZ bandwidth

Voltage
Current (maximum)
Frequency
Power Factor
Input Protection
THD

Surge Protection

Voltage
Static Regulation
Current (maximum) 
Power (Max)
Current sharing 

(10-100% load)

Protection

Dynamic Regulation
Output Noise
Ripple

IEC 61000-4-4 / IEC 61000-4-5 / IEEE C62.41
Emission : EN 61000-6-3; EN 61000-3-2; EN 61000-3-3. Immunity: EN61000-6-1; EN 61000-6-2.
<28.5 Arms peak at nominal mains voltage
3.0 kVac - input and output (4.25 kVDC primary- secondary); 1.5kVac - input earth (2.12kVDC primary-ground)
UL 60950-1, UL62368-1 3rd , IEC62368-13rd , EN62368-1 3rd
1.5 kVAC -input to earth, 500 VDC -output to earth

Surge Protection
EMC
Inrush Current
Voltage Withstand Test
Safety
Isolation

< 55 dBA @ Tambient = 40°C
Operating range -10

℃ 

~ 70

℃

; derated power at

 

50

℃

 ~ 70

℃

 ; humidity 5-95% RH non-condensing

-40 to +85°C ; humidity 0-99% RH non-condensing

Acoustic noise,full load
Operating temperature
Storage temperature
Cooling

144 x 41 x 328 mm
2.1 kg (4.6 lbs)

Dimension (W x H x D)mm
Weight

AC Output

SR-1600-124 PLUS

SR-1600-148 PLUS

SR-1600-224 PLUS

SR-1600-248 PLUS

AC Input

Control & Signal

Protection

Transfer Performance

DC Input

Environment

Other

Safety & EMC

AC Output

SR-1000T

SR-2500

SR-3500

AC Input

Control & Signal

Protection

Transfer Performance

DC Input

Environment

Other

Safety & EMC

Rating Power
Short Time Overload Capacity
Nominal Voltage (AC)
Output Voltage Range (AC)
Efficiency AC Mode
Efficiency DC Mode
Frequency Range
THD (Above 80% Resistive Load)
Turn ON Delay
Crest Factor at Nominal Power

Nominal Voltage (AC)
Voltage Range (AC)
Power Factor@Rating Power
Frequency Range
Synchronization Range

120VAC
90~130VAC ± 3% (adjustable from 75V to 132.5V)
> 0.99
50 / 60 Hz
47~53 Hz, 57~63 Hz

Indicator
Advanced Control

LED, Buzzer Alarm, Event Log
RS-485 (Modbus) embedded, CR-21 Plus (Optional), SN-1 Plus SNMP (Optional)

Over Voltage, Under Voltage, Overload, Over Temperature, Reverse Polarity, Short Circuit

Input / Output Protection

0 sec.

Inverter / Utility AC

Nominal Voltage (DC)
Voltage Range (DC)
Nominal Current (at 24Vdc/48Vdc)
Max. Input Current (15 Sec.)

24VDC
18~34VDC ± 3%
56A
90A

1200W / 1600VA
150% rated power (15 seconds)
120VAC
100~120VAC ± 3%
94%
89%
50 / 60 Hz
< 3%
<10 sec.

DC mode: 3 times nominal current      AC mode: 6 times nominal current

1600W / 1600VA

90%

48VDC
36~68VDC ± 3%
37A
60A

24VDC
18~34VDC ± 3%
56A
90A

EN62368-1
EN55032 Class B; EN55024; EN300386
EN 61000-3-2, -3-3, -6-1, -6-3;
IEC 61000-4-2, 3, 4, 5, 6, 8, 11

48VDC
36~68VDC ± 3%
37A
60A

Operating Temp. 
Storage Temp.

Full Load -25

o

C ~ 40

o

C ; Power De-rating from 40°C to 60°C        

-40

o

C ~ 70

o

C , 95% RH non-condensing

Dimension (WxHxD) - Module
Dimension (WxHxD) - Shelf
Packing

105x83x410 mm / 4.13x3.27x16.14 inch
446x85x509 mm / 17.56x3.35x20.04 inch
Module

：

3.8kg; 4pcs / 17.2kg; Shelf

：

6.5kg; 1pc / 7.5kg

Safety Standards
EMC Standards

Meet UL62368-1
FCC class B

1200W / 1600VA

230VAC
200~240VAC ± 2%
95%
90%

DC mode: 3 times nominal current      AC mode: 10 times nominal current

230VAC
180~260VAC ± 2% (adjustable from 150V to 265V)

1600W / 1600VA

91%

AC Power System

Rack Mount Inverter 

Packing Information

DC Input

AC Input

AC Output Connection 

Type

PCS/CTN

N.W./CTN 

(KGS)

G.W./CTN

(KGS)

CBM /CTN

PCS /PLT

CARTONS/

PLT

SR -1000

SR - 1600 Module

SR - 1600 Rack

24V, 48V

24V, 48V

IEC, HW

HW

HW

2

4

1

15

15.2

6.5

16

16.8

7.5

0.08

0.09

0.08

64

80

16

32

20

16

75-132V,

150-265V

100-120V,

200-240V

100-120V,

200-240V

97-123V,

194-246V

75-132V,

150-265V

*The above information is for reference only, subject to change without notice

Rating Power
Short Time Overload Capacity
Nominal Voltage (AC)
Output Voltage Range (AC)
Efficiency AC Mode
Efficiency DC Mode
Frequency Range
THD (Above 80% Resistive Load)
Turn ON Delay
Crest Factor at Nominal Power

Nominal Voltage (AC)
Voltage Range (AC)
Power Factor@Rating Power
Frequency Range
Synchronization Range

120VAC
90~130VAC ± 3% (adjustable from 75V to 132.5V)
> 0.99
50 / 60 Hz
47~53 Hz, 57~63 Hz

Indicator
Advanced Control

LED, Buzzer Alarm, Event Log
RS-485 (Modbus) embedded, CR-21 Plus (Optional), SN-1 Plus SNMP (Optional)

Over Voltage, Under Voltage, Overload, Over Temperature, Reverse Polarity, Short Circuit

Input / Output Protection

0 sec.

Inverter / Utility AC

Nominal Voltage (DC)
Voltage Range (DC)
Nominal Current (at 24Vdc/48Vdc)
Max. Input Current (15 Sec.)

24VDC
18~34VDC ± 3%
56A
90A

1200W / 1600VA
150% rated power (15 seconds)
120VAC
100~120VAC ± 3%
94%
89%
50 / 60 Hz
< 3%
<10 sec.

DC mode: 3 times nominal current      AC mode: 6 times nominal current

1600W / 1600VA

90%

48VDC
36~68VDC ± 3%
37A
60A

24VDC
18~34VDC ± 3%
56A
90A

EN62368-1
EN55032 Class B; EN55024; EN300386
EN 61000-3-2, -3-3, -6-1, -6-3;
IEC 61000-4-2, 3, 4, 5, 6, 8, 11

48VDC
36~68VDC ± 3%
37A
60A

Operating Temp. 
Storage Temp.

Full Load -25

o

C ~ 40

o

C ; Power De-rating from 40°C to 60°C        

-40

o

C ~ 70

o

C , 95% RH non-condensing

Dimension (WxHxD) - Module
Dimension (WxHxD) - Shelf
Packing

105x83x410 mm / 4.13x3.27x16.14 inch
446x85x509 mm / 17.56x3.35x20.04 inch
Module

：

3.8kg; 4pcs / 17.2kg; Shelf

：

6.5kg; 1pc / 7.5kg

Safety Standards
EMC Standards

Meet UL62368-1
FCC class B

1200W / 1600VA

230VAC
200~240VAC ± 2%
95%
90%

DC mode: 3 times nominal current      AC mode: 10 times nominal current

230VAC
180~260VAC ± 2% (adjustable from 150V to 265V)

1600W / 1600VA

91%