Miniature Circuit Breaker

  • Image 11 of 95

Image Description

an MCB or resettable fuse circuit breaker. the circuit breaker trip in two ways to protect electrical wiring form overloads. a magnetic coil which mechanically trips the circuit breaker during a high current fault, and a bimetallic thermal overload which trips during a longer sustained but less significant overload. The matrix of metal bars on the right are a spark arrester, which uses the magnetic field from the coil to drag the spark away from the main contact seen at the bottom (hook shaped element currently in the open position)

mcb circuit breaker trip overloead current protection fuse miniature circuit breaker switchboard open cut away inside interior working works exploded
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