Home Product Low-voltage Current Transformers CNT-CT11

CIRCULAR RESIDUAL CURRENT TRANSFORMER

Product Features
The core piercing structure is cast with flame-retardant epoxy resin, ensuring good stability.
◆ High magnetic permeability nickel steel or nanocrystalline, excellent linearity and high sensitivity
◆ Outstanding balance characteristics and strong anti-electromagnetic interference ability
Scope of Application
Electrical fire monitoring, fire protection and leakage systems, intelligent power systems, low-current grounding systems, 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

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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
CT1130	0~1A	0~1V (0.5mA)	0.1 0.2 0.5 1.0
CT1145
CT1165
CT1180
CT11100
CT11150
CT11200

Description

Circular through type 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 0.2 level, 0.5 level, 1 level and other different precision; at the same time, it can also meet the strict requirements of the new national standard for the balance characteristics. The unbalanced current output value can also be better than 30mA, 10mA, 5mA, or even 3mA, greatly reducing the false alarm caused by the magnetic field interference of the main circuit current, providing 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.