K mini circuit breakers is mainly suitable for overload and short circuit protection．It is especially used for illumination and distribution in industry and commerce．It is of pleasing out-look，light weight，reliable performance，high breaking capacity，etc．Its frame and parts adopt plastics of high in flammable resistance and shock resistance for long service life．It is mainly used for overload and shout circuti protection within the circuit of AC 50/60Hz，rated voltage of sing e pole up to 240V，two，three or four pole up to 415V．It can also be used for an unfrequent switchover of the circuit and illumination under normal condition．