
Current Transformers
Accuracy
Frequency 
Insulation Class
Weight
±2.0% (100 Amp) 
±1.0% (100-1000 Amp) 
50-400 Hz
0.6kV BIL 
10kV full wave
1.0lb (453.59g)
Specifications
1.56” DIA
3.00”
3.53”
0.44”
3.78”
1.83”
1.77”
0.21” X 0.31”
2.75”
2.15
1.09”
Burden
Range VA@60Hz Catalog Number
100:5 2.0 37020 
150:5 5.0 37021 
200:5 5.0 37022 
300:5 12.5 37023 
500:5 20.0 37024
1000:5 25.0 37025
• Reduces high AC  
current signal to 5 
amp AC signal
• Use with analog and 5 
amp AC digital indicators 
Ordering Information
Current Transformers with Terminals
Dimensions
Model 186 Current Transformer
• Optimal for remote sensing of AC current 
signals
• Converts AC current signal to 0-10 ACV
signal
• For use with rectifier type analog panel
meters or digital indicators
• Perfect for low current measurement
where a donut current transformer would 
not sense a signal
Ordering Information
Dimensions
2.43”
1.75”
1.40”
1.75”
.69”
2.43”
.94”
.75”
1.12”
2.00”
1.38”
2.375”
2.81”
Range Cat. Number
VA
0-100mA 
0-500mA
0-5Amp 
0-10Amp 
0-15Amp 
0-20Amp 
0-25Amp 
0-30Amp 
0-40Amp 
0-50Amp
0.50
0.53
0.40
1.45
1.05
1.04
1.50
1.10
1.09
1.90
01295 
01304 
01312 
01314 
01315 
01316 
01317 
01318 
01319 
01321
For more information, visit www.simpsonelectric.com