YDB08 series circuit breaker is used in lighting distribution system or motor distribution system for protection overload and short-circuit in the system.The product is neoteric instructure,light in weight,reliable and excellent in performance.It has high breading capacity.can trip quickly,and its case and items are adopted by high fire-resistant and shock-proof plastics.The product,with long life,is mainly used in AC 50HZ/60hz single-pole 240 or two,three,four-pole 415V circuit for overload and short circuit protection as well as for unfrequent on-and-off switching electric equipment and lighting circuit in normal case.