Earth leakage breaker factory in Auckland

How does an earth leakage circuit breaker work?

Our earth leakage circuit breaker is generally composed of a ZCT (Zero-phase-sequence Current Transformer) + Earth leakage relay + Circuit breaker. The ZCT detects earth leakage current, notifies the electronic circuit, and shuts off the circuit using an internal tripping device.

Can an earth leakage circuit breaker cause a fire?

A leakage current of 100 mA or more can cause a fire. An earth leakage circuit breaker detects earth leakage of approximately 15 to 30 mA, and immediately shuts off the circuit within 0.1 seconds, preventing an accident.

What are earth leakage relays?

Earth leakage relays detect ground faults and abnormal leakage currents. These protective measures ensure circuit integrity, prevent equipment failure, and enhance overall electrical system safety. Air Circuit Breakers (ACBs) serve as the primary protective devices in large switchboards or for directly powering significant equipment.

What is an earth leakage circuit breaker (ELCB)?

The earth leakage circuit breaker (ELCB) is used to protect persons against electric shock hazards and to prevent a fire. This also have the same function as MCCB. This type of breaker is ELCB rated 225 Amp or less, and is available to protect a motor and the associated wiring or conductors. How Can We Help You?