Earth Leakage Circuit Breaker Symbol

Residual current circuit breaker with over current protection rcbos the range designed to ensure efficiency and protection rcbos are commonly used in applications where there is the need to combine protection against overcurrents overload and short circuit and protection against earth leakage currents.

Earth leakage circuit breaker symbol. The needs of these devices arise because of the number increasing in injuries as well as deaths because of electric shock. Forty years ago the first current eclbs were introduced and about sixty years ago the first voltage eclb was introduced. 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 remember. It detects small stray voltages on the metal enclosures of electrical equipment and interrupts the circuit if a dangerous voltage is detected.

What is elcb earth leakage circuit breaker elcb stands for earth leakage circuit breaker and it is used for protecting a person from electric shock and injury. If any current leaks from any electrical installation there must be any insulation failure in the electrical circuit it must be properly detected and prevented otherwise there may be a high chance of electrical shock if anyone touches the installation an earth leakage circuit breaker does it efficiently. Generally the current sensing devices termed as rccb and voltage detecting devices named as earth leakage circuit breaker elcb. Means it detects the earth leakage current and.

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 or elcb. An voltage elcbs were first introduced about sixty years ago and current elcb was first introduced about forty years ago.