DZ47-63/1P New Pattern Miniature Circuit Breakers

1. Scope of Application DZ47-63 series circuit breakers are mainly applied to the AC 50Hz/ 60Hz circuit with rated voltage240V/415V or less, rated current up to 63A and provide circuits of modern buildings with overload and short-circuit protections,and it can also be used for operating and isolating the circuit infrequently. 2. Construction Features DZ47-63 series miniature circuit breakers are composed of the moulded case,operating mechanism,contact system, are-extinguishing system,trippping mechanism, etc.The case is made of the special plastic high in fire-resistance and strength, so it is very capable of resisting impact and light in weigh, The parts of the operating mechanismemploy high strength plastic products in order to assure the flexible, reliable operation and obtain the minimum moment of inertia as well so that the time from the moment the short-circuit fault occurs to the operation of te tripping mechanism is very little. The tripping mechanism is composed of the two parts of bimetal sheet overload coounter time limittriping mechanism and short-circuit instantaneous electromagnetic mechanism. The contact arc-extinguishing system employs the special arc-conducting angle and gangway arc-extinguishing chamber so it has distinct current limiting characteristics. 3. Main Technical Parameters ModelRated Current APolesVoltage VBreaking Capacity AB1 3 6 10 161240/415600020 25 32 402 3 441550 631240/41545002 3 4415C1 3 6 10 161240/415600020 25 32 402 3 441550 631240/41545002 3 4415D1 3 6 10 16 201240/415450025 32 40 50 632 3 4415