RCT Current Transformer

RCT measuring current transformers are plastic molded CTs with metal foot, which are widely used in the switchboards and panelboards. These transformers comply with IEC60044-1, IEC61869-2, IEC61869-1 and GB1208-2006 Current Transformer Standards.

Technical Parameters:

Serieslow voltage current transformer
Item Number RCT
Rated Primary Current 100A to 2000A
Rated Secondary Current 5A
Rated Load 2.5/5/10/20VA
Accuracy Class 0.5/1.0
Rated voltage AC 0.66kV
Rated Frequency 50/60Hz
Insulation Class E
Casing Material PC
Installation busbar or floor mounting
Operating Temperature -40℃ to +50℃
Altitude ≤ 3000m
Power Frequency Voltage Endurance 3000V/1min
Operating humidity ≤ 80%
Function measurement of current and power; relay protection

Product Parameters:

ModelRatioHole DimensionsRated Burden Accuracy Class
RCT-25100/5A~200/5Aφ=25mm2.5~5VA1.0, 0.5
RCT-35200/5A~400/5Aφ=35mm2.5~5VA1.0, 0.5
RCT-60150/5A~800/5Aφ=60mm2.5~10VA1.0, 0.5
RCT-90150/5A~1200/5Aφ=90mm2.5~20VA1.0, 0.5
RCT-110200/5A~2000/5Aφ=110mm5~20VA1.0, 0.5

Drawings:

How to Choose a Current Transformer?

Window Size: according to the specification and number of busbars.

Rated Current Ratio: 1/3 larger than the measured primary current.

Rated Secondary Current: 5A or 1A. When the installation location of the instrument is far away from the current transformer or the loop load is large, please choose the secondary current of 1A.

Rated Burden: the measuring instrument is connected to terminals S1 and S2, and the total load of the connected circuit should not exceed the transformer’s rated load/burden.

Accuracy Class: for measurement—class 1.0, 0.5, 0.2, 0.5S, 0.2S; for protection—class 5P10, 5P20, 10P10, 10P20.

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