Overcurrent protection device for circuit breaker
A protection device, overcurrent technology, applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of reducing the click force, moving iron core, ejector rod jitter, weakening the magnetization of the iron core, etc., to reduce jitter and improve product use. Longevity and effect of improving stability
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[0024] Figure 1 ~ Figure 3 A specific embodiment of the circuit breaker overcurrent protection device of the present invention is shown. The same as the traditional circuit breaker overcurrent protection device, the protection device also includes an electromagnetic system A and an operating mechanism B that cooperate with each other, wherein the electromagnetic system A includes a static contact 2, an incoming line terminal 3 electrically connected to the static contact 2, a coil 5 connected in series between the incoming line terminal 3 and the associated static contact 2, and a coil 5 electromagnetically matched to the coil 5. Static iron core 6 and moving iron core 7. The structure of the operating mechanism B is the same as the traditional structure. It consists of a moving contact 1, a handle 15, two fixed rotating shafts 16, a lever 17, a lock 18, a jumper 19, a movable rotating shaft 20, a bracket 21, and a tension spring. 22. Outlet terminal 4, first torsion spring ...
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