Earth Leakage Circuit Breaker Elcb

An earth leakage circuit breaker elcb is a safety device used in electrical installations with high earth impedance to prevent shock.

Earth leakage circuit breaker elcb.

It detects small stray voltages on the metal enclosures of electrical equipment and interrupts the circuit if a dangerous voltage is detected. Earth leakage circuit breakers elcb motor protection breakers the earth leakage circuit breakers are used in applications to prevent electrical shock and electrical fires that are caused by a short circuit or overload in the control panel with an automatic shut off when leakage is detected. An elcb is a specific type of latching relay that has a structure s incoming mains power associated through its switching contacts so that the circuit breaker detaches the power in an unsafe condition the elcb notices fault currents of human or animal to the earth wire in the connection it guards. Current earth leakage current earth leakage circuit breaker current elcb.

If ample voltage seems across the elcb s sense coil it will turn off the power and remain. As a general abbreviation elcb in our model name is denoted as nv. An voltage elcbs were first introduced about sixty years ago and current elcb was first introduced about forty years ago. For many years the voltage operated elcb and the differential current operated elcb were both referred to as elcbs because it was a simpler name to.

Earth leakage circuit breaker elcb is a molded case circuit breaker used in a low voltage ac circuit to provide electrical shock protection and prevent fires from leakage current.