PCT531 precise current transformer

Electrical Specification

(Customized is available)

Rated Primary Current2.5mA
Max Primary Current5mA
Rated Secondary Current2.5mA
Accuracy0.1~2.0
Electrical Strength3000VAC 1mA60s
Load Resistance400Ω
Rated Frequency50/60HZ

Like voltage transformers, current transformers and current measuring instruments have minimal error around their rated values. Therefore, the rated primary current of the current transformer should be equal to or slightly larger than the measured current, and the rated secondary current should be equal to the rated current of the measuring instrument.

If the magnitude of the measured current varies, the variation range should be 10%~120% of the rated current range, otherwise a multi-variable ratio current transformer should be used, and the current ratio should be changed accordingly. When the current is less than 10% of the rated current, the error between the current transformer and the measuring instrument is very large; when the current is greater than 120% of the rated current, the current transformer and the measuring instrument may be burned out.

ItemRated Current(A)Current RatioAccuracy ClassLoad Resistance ΩFrequency HzDimensions (mm)
Click PN For DetailsIDODHT
PCT21550500~3500:10.1~2%3050/608.52913.2
PCT21660500~3500:10.1~2%3050/608.629.213
PCT52720500~3500:10.1~2%4050/607.6188
PCT53125500~3500:10.1~2%1050/60--15.5
PCT70160500~3500:10.1~2%2050/60723.411
PCT70280500~3500:10.1~2%3050/608.726.417
PCT703130500~3500:10.1~2%5050/6012.837.214
PCT70460500~3500:10.1~2%1050/60824.211.8
PCT71010500~3500:10.1~2%3050/6082411.8
PCT80150500~3500:10.1~2%10050/60284517.2
PCT802100500~3500:10.1~2%4050/603533.529.2
PCT82220500~3500:10.1~2%5050/6021318
PCT83150500~3500:10.1~2%3050/6010.623.913.6
PCT832100500~3500:10.1~2%2050/6012.626.114.6
PCT842100500~3500:10.1~2%10050/607.52217.5
PCT84310500~3500:10.1~2%4050/601831.523
PCT901180500~3500:10.1~2%2050/6018.55020