Mcb Micro Circuit Breaker

An electrical circuit breaker is a switching device that can be operated automatically or manually for controlling and protecting the electrical power system and the electrical devices connected to it.

Mcb micro circuit breaker.

A miniature circuit breaker mcb automatically switches off the electrical circuit during an abnormal condition of the network means in overload condition as well as faulty condition. 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. The circuit breaker trips when too much electricity flows through it or when it cannot handle the excess current load. It senses earth leakages and residual currents and ensures protection against electric shock.

Single pole mcb 2p 32a 6ka micro circuit breaker. Vacuum circuit breaker characteristics. The miniature circuit breaker is a protection device that prevents damage to an equipment circuit on the event of an overload or short circuit faults. Vacuum circuit breakers tend to have longer life expectancies between overhaul than do air circuit breakers.

Residual current circuit breakers are devices that protect against electric shock. The fuse may not sense it but the miniature circuit breaker does it in a more. A miniature circuit breaker mcb is an automatically operated electrical switch used to protect low voltage electrical circuits from damage caused by excess current from an overload or short circuit. Din rail mount 1p dz47 63 en60947 2 c curve circuit breaker.

Rcd residual current device rccb residual current circuit breaker. Thermal breakers use an internal bi metallic strip that bends according to the amount of current passing through it. Mcbs are typically rated up to a current up to 125 a do not have adjustable trip characteristics and can be thermal or thermal magnetic in operation. These can also be applied at up to 35 000 v.

Plug in 1p 10ka miniature circuit breakers. With rated current up to 3000 a these breakers interrupt the arc in a vacuum bottle. Type selection and fault judgment of miniature circuit breakers 3. Screw compression ac240 ccc 2p 4 5ka micro circuit breaker.

Under overload conditions the strip bends far enough to activate the breaker s trip mechanism. Miniature circuit breakers or mcbs come in two commons types. Abn mccb 400 amp molded case circuit breaker. An mcb or miniature circuit breaker is an electromagnetic device that embodies complete enclosure in a molded insulating material.

What is miniature circuit breaker mcb. Flame resistant plastic bn60 10ka micro circuit breaker. Mcb are available in 1 pole 2 poles 3 poles 4 poles and current rating from 0 5a up to 125a.