APPLICATIONS

The latest designed CYD seried circuit breakers, eoteric in structure, light in weight reliable and excellent in performance, are mainly applied to the AC 50Hz/60Hz circuit with rated voltage 230V/400V or less. rated current up to 63A and provide circuits of modern buildings with overload and short-circuit protections, and it can a also be used for operating isolating the circuit infrequently. The products comply with IEC60898&BS3871.

CONSTRUCTION FEATURES

CYD series miniature circuit breakers are composed case, operating mechanism, contact system, arc-extinguishing system, tripping mechanism, etc. The case is made of the soecial plastic high in fire-resistance and strength, so it is very capable of resisting impact and light in weight. The parts of the openrating mechanism employ high strength plastic products in order to assure the flexible, reliable operation and obtain the minimum moment of the tripping mechanism is very little. The tripping mechanism and short-circuit instantancous electromagnetic mechanism. The contact arc-extinguishing system cmpoys the special arc-conducting angle and gangway arc-extinguishing chamber so it has distinct current timiting characteristics.



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