Mcb Micro Circuit Breaker

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.

Mcb micro circuit breaker.

Flame resistant plastic bn60 10ka micro circuit breaker. Residual current circuit breakers are devices that protect against electric shock. Mcb are available in 1 pole 2 poles 3 poles 4 poles and current rating from 0 5a up to 125a. Nowadays we use an mcb in a low voltage electrical network instead of a fuse.

Rcd residual current device rccb residual current circuit breaker. Miniature circuit breakers or mcbs come in two commons types. Single pole mcb 2p 32a 6ka micro circuit breaker. Vacuum circuit breakers tend to have longer life expectancies between overhaul than do air circuit breakers.

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. These can also be applied at up to 35 000 v. This means that the flow of electricity is cut off to keep your circuits. Vacuum circuit breaker characteristics.

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. Under overload conditions the strip bends far enough to activate the breaker s trip mechanism. Thermal breakers use an internal bi metallic strip that bends according to the amount of current passing through it. Abn mccb 400 amp molded case circuit breaker.

It senses earth leakages and residual currents and ensures protection against electric shock. Plug in 1p 10ka miniature circuit breakers. Din rail mount 1p dz47 63 en60947 2 c curve 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.

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 fuse may not sense it but the miniature circuit breaker does it in a more. 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. An mcb or miniature circuit breaker is an electromagnetic device that embodies complete enclosure in a molded insulating material.

Type selection and fault judgment of miniature circuit breakers 3. With rated current up to 3000 a these breakers interrupt the arc in a vacuum bottle. The circuit breaker trips when too much electricity flows through it or when it cannot handle the excess current load.