Miniature Circuit Breaker Box

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Miniature circuit breaker box.

A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit its basic function is to interrupt current flow after a fault is detected. In residential applications single pole breakers protect 20v branch circuits and two pole breakers protect 240v branch circuits. The voltage rating of a circuit breaker can be higher than the circuit voltage but never lower. Unlike a fuse which operates once and then must be replaced a circuit breaker can be reset either manually or automatically to resume.

For typical miniature circuit breakers this rating is 2 to 125 a. An mcb or miniature circuit breaker is an electromagnetic device that embodies complete enclosure in a molded insulating material. Miniature circuit breakers mounted on din rail. What is miniature circuit breaker mcb.

The fuse may not sense it but the miniature circuit breaker does it in a more. Breakers load centers fuses. The main function of an mcb is to switch the circuit i e to open the circuit which has been connected to it automatically when the current passing through it mcb exceeds the value for which it is set. Shop the top 25 most popular 1 at the best prices.

Miniature circuit breakers square d homeline hom250 miniature circuit breaker 120 240 vac 50 a 10 ka 2 poles thermal magnetic trip.