Home Product Low-voltage Current Transformers CNT-CTF1

RECTANGULAR COMBINED RESIDUAL CURRENT TRANSFORMER

RECTANGULAR COMBINED RESIDUAL CURRENT TRANSFORMER

Product features

◆ Core piercing structure, flame retardant epoxy resin casting, 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

Electrical fire monitoring, fire prevention and leakage system, intelligent power system, small current grounding system, electromagnetic relay protection, microcomputer protection, intelligent power, environmental protection monitoring, etc.

Product Material

Shell

ABS, Flame retardant grade 94-V0
Skeleton

PBT
Iron core

Nickel or nanocrystalline
Internal structure

Environment friendly epoxy resin casting

Inquiry

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Specification Description

Specification

Electrical parameters		Mechanical parameters
Working frequency	50~400Hz	Shell	ABS,Flame retardant grade 94-V0
Rated input	10mA~5A	Skeleton	PBT
Measuring range	10％ln~130％ln	Iron core	Nickel or nanocrystalline
Rated output	0~1V or 0~0.5mA	Internal structure	Environment friend epoxy resin casting
Ratio difference	≤±0.1％	Construction plan	Screw fixation
Phase difference	≤±10 point	Working temperature	-12℃~+45℃
Dielectric strength	2.5KV/7mA/1min	Ambient humidity	≤85％
Insulation resistance	DC500V/1000MΩ/min	Connection mode	Terminal type/shielded strand 1.5m

Model and specification	Rated input(A)	Rated output(mA/V)	Accuracy class
CTYF1-1125	0~1A	0~1V (0.5mA)	0.1 0.2 0.5 1.0
CTYF1-1535
CTYF1-1935
CTYF1-2445
CTYF1-2940
CTYF1-3440
CTYF1-3940
CTYF1-4440
CTYF1-4940
CTYF1-5440
CTYF1-3990
CTYF1-4490
CTYF1-4990

Description

Rectangular combined 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 various through hole diameters. The through hole diameter of this series of products ranges from 100 mm to 490 mm, 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, GB 14287.2-2014 and IEC 60364-4-42.