L7 miniature circuit breaker is especially Suitable for illumination and distribution in industry and commerce. It is of pleasing out look, light in weight, reliable performance, high breaking capacity, high inflammable resistance and shock resistance for long service life. Lt is mainly used for overload and short circuit protection within the circuit of AC 50/60Hz, rated voltage of single pole up to 250V, two, three or four pole up to 400V. It can also be used for an unfrequent switchover of circuit and illumination under normal condition.