Electrical characteristics 

Type

CSM025A

IPN

Primary nominal input current

25

A

IP

Measuring range of primary current                        

0~±36

A

ISN

Secondary nominal output current

25

mA

KN

Conversion ratio 

 1-2-3-4-5:1000

RM

Measuring resistance  (VC=±15V) 

IPN=±25A      100~460 

IP =±36A       100~304 

RM

VC

Supply voltage

  ±15(±5%)

V

IC

Current consumption

VC=±15V                      10+Is

mA

VD

Insulation voltage

AC/50Hz/1min                  2.5  

kV 

εL 

Linearity

<0.2

%FS

X 

Accuracy

TA=25°C VC =±15V             <±0.7

%

IO

Zero offset current

TA=25°C                      <±0.15

mA

IOM

Residual current                                 

IP→0                         <±0.15

mA

IOT

Thermal drift of I0                             

IP=0  TA=-25~+85°C            <±0.5

mA

TR 

Response time 

<1

μs

di/dt

di/dt accurately followed

>50

A/μs

f

Frequency bandwidth(-1dB)

DC~100

kHz

TA

Ambient operating temperature                 

-25~+85

°C

TS

Ambient storage temperature                 

-40~+100

°C

RS

Secondary coil resistance(TA=85°C)

50

Ω