BH series miniaturecircuit breaker is mainly suitable for guesthouses, block of flats,high buildings, squares, airports, railway, stations, plants and enterprise buildings,etc. It is mainly used for overload and short circuit protection within the circuit of AC 50-60Hz, rated voltage of single pole up to 230V, two, three or four pole up to 400V and rated current up to 60A. It can also be used for an unfrequent switchover of the circuit and illumination under normal condition. Its breaking capacity is 3KA