Passive shunt auxiliary contact for a circuit breaker

Abstract

The utility model discloses a passive division excitation auxiliary combination contact of circuit breaker relates to low -voltage electrical apparatus technical field, and the division excitation tripping function and state monitoring function are integrated in the same mechanical structure. Including mobile support, micro -switch, jump buckle, lock catch and reset torsional spring, the coil receives the trigger arm of trip signal after driving the jackscrew and top pressure jump buckle, makes jump buckle rotate and relieve and lock catch occlusion, and the spring of buckle torsional spring releases the force and is pushed lock catch press end, reset torsional spring releases the force and is acted to mobile support simultaneously, jointly drive mobile support to shift upwards, and then through the connecting rod drive handle reset to the position of opening, and the pressure arm of micro -switch resets with mobile support and moves upwards, and division excitation micro -switch and auxiliary micro -switch contact state synchronous switching feedback tripping information. Realize division excitation tripping function and state monitoring function integration, need not additional assembly independent auxiliary contact in outside, ensure the real -time nature and consistency of tripping signal and state feedback signal.

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