MCB ELCB MCB is an electromechanical device which protects an electrical circuit from an over current and in short circuit condition. The ELCB is used to protect the circuit from the electrical leakage. MCB has slower operation time than ELCB. ELCB has rapid operation compare to MCB. The operating principle of MCB is simple. The operating principle of ELCB is complicated. MCB does not give human protection. ELCB gives human protection. MCB is cheaper than ELCB. ELCB is costlier than MCB. Rated current is not more than 100 Ampere. The range of rated current us up to 1000 Ampere. This circuit breaker connects the phase and neutral terminal. This circuit breaker connects the phase, earth wire and neutral terminal. Applications: Domestic and commercial purposes. Applications: Mostly in Domestic purposes.
