L7 L8 series circuit breaker are used in lighting distribution system or motor distribution system for protection of overload and short-circuit in the system.This series products are neoteric in structure,light in weight,reliable and excellent in performance.It has high breaking capacity, can trip quickly.and its case and items are adopted by high fire-resistant and shockproof plastic.This series products are with long life,and is mainly used in the circuit of AC50Hz/60Hz,single pole 230V or two,three,four poles 400V, for protecting the products from overload and short-circuit.Moreover,the products can be used for unfrequent on-and-off switching electric equipment and lighting circuit in normal case.The products comply with IEC60898.