High quality Current transformer for GFCI ZG522

Current transformer for GFCI
* Compatible with UL943
* Precision and steady output characteristics；
* Close to zero load shift；
* Excellent characteristics in balance and temperature；

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Current transformer for GFCI ZG522

The GFCI component must consist of ZCT and GNT coils. The ZCT coil is used to detect a small ground fault difference current between the live line and the earth line .The GNT coil is used to detect an over-current caused by arcing or short circuit of the cable fire or excessive current change. Current transformer is mainly used in GFCI sockets or plugs used in near-water environments such as kitchens, bathrooms, car washes, and arc fault breaker sockets or plugs for air conditioners.

Technical Specification:

Rated Current	20 A
DC Resistance at 25℃	ZCT GNT	36±5Ω 9.2± 2Ω
Dielectric Withstanding Voltage(Hi-pot)	1500 V AC 1 min
Output Voltage Vo	ZCT GNT	7.5-8.5mV ≥60mH

Specification & Dimension:

Model No.	Electrical Characteristics				Dimension(Unit:mm/inch)							Standard PN
	Ip(A)	I(mA)	Rl(Ω)	ZCT:V(mV)	A	B	C	D	E	F	Pin
	Ip(A)	f(Hz)	u(V）	GNT:Ls(mH)	A	B	C	D	E	F	Pin
523	20	5	1K	3.5-4.2	16	17.85	11.5	5	11	1.5	□0.64	Z/G523P100
523	20	1.0K	1.0V	90-140	0.630	0.703	0.453	0.197	0.433	0.059	0.025	Z/G523P100
524	20	5	1K	3.5-4.2	17.2	11	3.6	14	18.6	7	□0.64	Z/G524P100
524	20	1.0K	1.0V	90-140	0.677	0.433	0.142	0.551	0.732	0.276	0.025	Z/G524P100
530	30/50	5	1K	4.1±0.5	38.00	19.80	16.50	42.60	2.12	6.18	□0.64	Z/G530P100
530	30/50	1.0K	1.0V	100±25	1.496	0.780	0.650	1.677	0.083	0.243	0.025	Z/G530P100
537	20/30	5	1K	3.5-4.2	16	20.5	15.8	13.3	15.2	3.2	□0.64	Z/G537P100
537	20/30	1.0K	1.0V	90-140	0.630	0.807	0.622	0.524	0.598	0.126	0.025	Z/G537P100
542	20/30	5	1K	3.5-4.2	17.465	5.5	23.4	11.1	19.9	7.5	0.8	Z/G542P100
542	20/30	1.0K	1.0V	90-140	0.688	0.217	0.921	0.437	0.783	0.295	0.031	Z/G542P100
556	20	5	1K	3.5-4.2	16.9	5.21	10.5	3.18	6.36	17.4	□0.64	Z/G556P100
556	20	1.0K	1.0V	90-140	0.665	0.205	0.413	0.125	0.250	0.685	0.025	Z/G556P100

GFCI Current Transformer Application:

√ Sensing toroid using to sense minimal differential current caused by the ground fault
√ Grounded neutral toroid using to sense unexpected excessive current change or overload current caused by the arc resulted from the fire or the short circuit

√ GFCI current transformer series are mainly applied to GFCI plugs, GFCI receptacles,connecting with various electric equipments, such as EV charger,Air-conditioner,Washing machine,Water heater, Car-washing equipment etc

√ Currently,our GFCI CTs are widely used for floor heating and HVAC controls.

√ And also these assemblies are applied to the AFCI used in the air-condition