Zero Phase Current Transformer

Zero phase current transformers are widely used in circuit leakage current protection such as residual current circuit breakers, leakage current protection switch and so on. When the input line and loop current are not equal, e.g., neutral line is disconnected, power supply for electric energy meter is generated by secondary winding. So, it can achieve the purpose of electricity theft prevention.

Features

• A variety of encapsulations
• High linearity over the whole current range
• Minimum output voltage tolerance
• Meet the standard IEC 60044-3, JB/T10665

Applications

• Electrical measuring instruments
• Electrical protective devices
• Current sensing modules

Specifications

Description	Zero Phase Current Transformer
Structure Of Winding	Toroidal
Phase	Single, Three
Input / Output	0~60A/0~20V
Max. Current	10~200 A
Turns Ratio	1:50~1000
Burden (Rb)	10~5000Ω
Accuracy Class	0.05/0.1/0.2 Class
Core Inside	Nanocrystalline, Coiled Silicon Steel Sheet
Encapsulation	ABS/PBT Plastic Case, Double Insulation
Busbar Type	None
Mounting Method	Through-hole
Application	Meters, Instruments
Accept Customized	Yes

Typical Products

Model (Part Number)	Input/Output	ID(Hole) (mm)	OD (mm)	HT (mm)
ZT2-42A	2(10)A1T/>4.2(10)V	>Φ11.5	<Φ31.5	<21.5
ZS03-03B	25mA/>17mV	>Φ15	<Φ36	7.3
ZS5-13A	0.5(40)A/>1.3(3.8)V	Φ10	Φ30	23
ZS20-30A	2A1T/>3.0V	>Φ13.8	<Φ37	<16
ZS40-60A	1(30)A4T/6~9V	>Φ17	<Φ42	<16
ZT-25A	0~50A/0~50mA	Φ25	Φ45.5	18
ZT-46A	0~50A/0~50mA	Φ46	Φ77	25.5
ZT-63A	0~50A/0~50mA	Φ63	Φ95	23
ZT-75A	0~50A/0~50mA	Φ75	Φ116	22
ZT-80A	0~50A/0~50mA	Φ80	Φ120	25
ZT-100A	0~50A/0~50mA	Φ100	Φ140	25