DL7LE-80 series small leakage circuit breaker is a new product developed by the company. it is suitable for Ac 50Hz, rated voltage 400vrated curent not exceeding 63A, and the neutral point of the power supply is grounded. it is mainly used for personal electric shockprotection and overcurrent protection for buildings and similar line equipment. The electrical equipment is damaged by insulation, andthe fire hazard caused bythe ground fault current is provided to provide protection.Meet the standard:GB 16917.1.1EC 61009-1