Earth Leakage Circuit Breaker

Means it detects the earth leakage current and.

Earth leakage circuit breaker. 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. Early earth leakage circuit breakers are voltage detecting devices which are now switched by current sensing devices rcd rccb. Current earth leakage current earth leakage circuit breaker current elcb. As a general abbreviation elcb in our model name is denoted as nv.

Earth leakage circuit breaker or elcb. Generally the current sensing devices termed as rccb and voltage detecting devices named as earth leakage circuit breaker elcb. 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. Forty years ago the first current eclbs were introduced and about sixty years ago the first voltage eclb was introduced.

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. 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. The earth leakage circuit breaker elcb is used to protect persons against electric shock hazards and to prevent a fire. This kind of breaker is elcb rated 225 amp and less and is available to protect a motor and the associated wiring or conductors.

It detects small stray voltages on the metal enclosures of electrical equipment and interrupts the circuit if a dangerous voltage is detected.