C45N series circuit breaker is used in lighting distribution system or motor distribution system for protecting overload and short-circuit in the system. The product is novel in structure, light in weight, reliable and excellent in performance. It has high breaking capacity, can trip quickly and it's installation uses with guide, it's case and items are adopted with high fire-retartant and shockproof plastics. The product, with long life, is mainly used in AC 50Hz/60Hz, single-pole 240V 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. GB 10963, IEC898, BS3871.1. Specification: No. Of pole: 1, 2, 3, 4P Rated voltage 240V/415V AC Rated current (C): 1, 3, 6, 10, 16, 20, 25, 32, 40, 50, 63A Breaking capacity 6kA Electrical life no less than 6000 times Mechanical life (0-c)no less than 20000 times Tropical trial Treatment 2(RH 95% at 5'C) As per Instantaneous release type: B type (3ln~5ln),C type (5ln~10ln),D type (10ln~14ln). Sequence NO . Release Test current I/In Start state Tripping time Expected restlt 1 B,C,D 1.13In Cold state t1h Not tripping 2 B,C,D 1.45In Start right after the serial NO . 1 test t