Home

Open-close Type Circular Residual Current Transformer

Product Overview

Circular switching residual current transformer is mainly used in cable circuit environment. It has simple structure, small volume and flexible application. According to the specifications of the cable used in the main circuit, there are a variety of through hole diameters. The through hole diameter of this series of products ranges from 30mm to 200mm, 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 Circular 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	Φ	A	B	C	D	G
CTK-30	0~1A	0~1V (0.5mA)	0.2 0.5 1.0	30mm	87.5	67.5	28	76	M6
CTK-45				45mm	108.5	83.5	28	92	M6
CTK-65				65mm	129.5	105	30	110	M6
CTK-80				80mm	159.5	128	32	143	M6
CTK-100				100mm	188	154	32	178	M6
CTK-150				150mm	238	204	32	228	M6
CTK-200				200mm	288	254	32	278	M6

Send us an email

info@ycctmeter.com

Classification :

Residual Current Transformer

Keywords : Residual Current Transformer

Product Consulting

File Download

Quality begins with details

We are committed to providing outstanding after-sales service, ensuring a seamless support experience. Be it product usage guidance, customization needs, or post-sales inquiries, our professional team is always here to offer fast and attentive service.