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Open-close Type Rectangular Residual Current Transformer

Product Overview

Rectangular open close residual current transformer is mainly used in cable circuit environment. It has simple structure,small volume and flexible application. According to the cable specifications used in the main circuit,there are various through hole diameters. The through hole diameter of this series of products ranges from 110mm to 400mm, and the main circuit current includes 63A to 2000a. This series of products can meet the technical requirements of grade 0.2, grade 0.5 and grade 1;At the same time,it can also meet the strict requirements of the new national standard for balance characteristics.The unbalanced current output value can be better than 30mA,10mA, 5mA, or even 3mA, which greatly reduces the false alarm caused by the magnetic field interference of the main circuit current and provides sufficient guarantee for the reliability of the equipment. Excellent and advanced production process.This series of products meet the requirements of GB-14287.2-2005 and GB 14287.2-2014.

Product Features

▪ Easy installation,opening and closing angle of 90°。
▪ Core piercing structure, flame retardant epoxy resin casting, elastic pad contact surface, good stability.
▪ High magnetic conductivity nickel steel or nanocrystalline, good linearity and high sensitivity.
▪ Excellent balance characteristics and strong anti electromagnetic interference ability.

Scope of Application

Smart power system,rural power grid transformation, electrical fire monitoring, fire leakage system, small current grounding system, electromagnetic relay protection, microcomputer protection, smart power,environmental protection monitoring, etc.

Performance Index

Electrical parameters		Mechanical parameters
Working frequency	50~400Hz	Shell	ABS,Flame retardant grade 94-V0
Rated input	10mA~5A	Skeleton	PBT
Measuring range	10%In~130%In	Iron core	Nickel or nanocrystalline
Rated output	0~1v(A)0~0.5mA	Internal structure	Environment friendly epoxy resin casting
Ratio difference	≤±0.1%	Construction plan	Screw fixation
Phase difference	≤±10 minutes	Working temperature	-12℃~+45℃
Dielectric strength	2.5KV/1mA/lmin	Ambient humidity	≤85%
Insulation resistance	DC500V/1000MΩ/min	Connection mode	Terminal type/shielded strand 1.5m

Open-close Type Rectangular Residual Current Transformer

Outline and installation dimensions

Model and specification	Rated input	Rated output	Accuracy class	Dimensions(mm)
Model and specification	Rated input	Rated output	Accuracy class	A	B	K	F	C	D	G
CTK-1125	0~1A	0~1V (0.5mA)	0.2 0.5 1.0	181	69.4	110	25	30	169	M6
CTK-1535				230	8 5	150	35	30	217	M6
CTK-1935				270	8 5	190	35	30	257	M6
CTK-2445				328	105.5	240	45	30	302	M6
CTK-3045				387	102	300	45	35	373	M6
CTK-3545				437	102	350	45	35	423	M6
CTK-4045				487	102	400	45	35	473	M6

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info@ycctmeter.com

Classification :

Residual Current Transformer

Keywords : Residual Current Transformer

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