Zero Phase Current Transformer

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Zero Phase Current Transformer

Zero phase current transformer adopts ABS flame retardant plastic cover and epoxy resin molding encapsulation, so it is resistant to moisture as well as shock. Our product has many outstanding features, such as high sensitivity, stable and reliable output, residual magnetism property, balance and temperature characteristics and good excessive input property. In addition, it also has excellent insulation ability. Depending on these advantages, this product is applicable in many fields, for example, socket, plug, domestic appliance protection, residual current circuit breaker, micro current induction sensor, earth leakage protecting plugs, earthing residual current breaker switch, etc.

Technical Parameters

Model Electrical Properties Overall Dimensions (mm)
Rated Current (A) Output Voltage (mV) Test Condition A B C D E F G
IO (mA) RL (Ω)
ZT011 30 8.0 (min) 11.25 1k 16.7 6.5 7 19 30 4
ZT012 50 8.0 (min) 11.25 1k 22 9 8.2 25 53 4
ZT013 50 300 (min) 30 100k 23.2 8.3 10 25.5 40 4
ZT014 125 7.5-8.5 25 330 30 15 9.2 32.2 100 4
ZT015 60 350 (min) 30 100k 25.4 10 8.5 28 40 4
ZT016 60 350 (min) 30 47k 26 10 15 24.5 30 4
ZT021 60 350 (min) 30 47k 27 10 15 40 4
ZT031 30 6.5-7.5 11.25 750 17 7 7 18 10 6 0.6
ZT032 30 6.5-7.5 11.25 750 17 7 7 18 10 4 0.6
ZT041 30 8.0 (min) 11.25 1k 24 6.7 6.5 16.5 20 4 0.8

Output Voltage Test Circuit                                                                        Balance Characteristics Test Circuit

Zero phase current transformer usually works with small current neutral grounding device, computer harmonic regulation device and other power protective equipment. If electric shock or leakage occurs in the circuit, it can execute protection action and cut off power supply to achieve the protection purpose. This transformer is detected by the output voltage test and balance characteristics test, and it features high precision, reliable performance as well as convenient installation. Customer can choose the proper current transformer based on the operation mode of system.

Huaxin is a specialized zero phase current transformer manufacturer in China. We offer a broad range of products, including anti-DC current transformer, common mode and differential mode inductor core, transformer iron core with air gap, and more.

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