Double-breakpoint current-limiting miniature circuit breaker
A small circuit breaker, double break point technology, applied in the direction of circuit breaker components, etc., can solve the problem of poor breaking capacity of small circuit breakers, and achieve the effect of improving short-circuit breaking capacity, convenient assembly, and strong current limiting capacity
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[0025] The embodiments of the present invention will be further described below in conjunction with the drawings:
[0026] by figure 1 Combine figure 2 , 3 ,4,5,6,7,8,9, a double-breakpoint current-limiting miniature circuit breaker, including a housing 1, an operating mechanism 2, a transmission mechanism 3, a contact system 4 and an arc extinguishing system 5. The operating mechanism 2 is connected to the contact system 4 through the transmission mechanism 3. The contact system 4 includes a movable contact 41 and a static contact 42, and the housing 1 includes a front cover 11 and a rear cover 12. The moving contact 41 includes a first moving contact pin 411 and a second moving contact pin 412, and the static contact 42 is provided with a first static contact piece 421 and a second static contact piece 422. The arc extinguishing system 5 includes a first arc extinguishing chamber 51 and a second arc extinguishing chamber 52 arranged side by side. The housing 1 is provided with...
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