What's the difference between the electronic and the electromagnetic releasers of leakage circuit breakers?

1. Different Auxiliary Power Supply Settings

Electromagnetic leakage circuit breaker does not need auxiliary power supply. There are no circuit board components in it. It has nothing to do with the working voltage of the switch. As long as the leakage current produced by the line reaches the leakage current of electromagnetic type, the leakage circuit breaker will operate, cut off the power supply behind, and protect personal safety.

Electronic leakage circuit breaker needs auxiliary power supply, which comes from the outlet (load) of the leakage circuit breaker. It is related to the working voltage of the line. If the voltage is too low, the leakage current is generated in the line, and reaches the action value of the leakage current of the switch, and the switch will not move.

2. Different working principles

The secondary circuit induction voltage of electromagnetic leakage protection device has not been amplified, which directly promotes the action of tripper.

The secondary circuit induction voltage of the electronic leakage protection device needs to be amplified by the electronic amplifier circuit, and then push the tripper to move. Therefore, the electronic type needs to supply power to the electronic amplifier circuit and its tripper in order to work normally.

3. Different equipment

Electromagnetic leakage protection apparatus consists of degaussing coil, electromagnetic leakage tripper and circuit breaker with overload and short circuit protection.

The electronic leakage protection apparatus consists of zero sequence current transformer, electronic controlled leakage tripper and circuit breaker with overload and short circuit protection.