Circuit breaker
A technology of circuit breakers and current limiting coils, applied in the direction of circuit breaker components, etc., can solve the problems of poor breaking capacity and current limiting performance of circuit breakers, and achieve the effects of improving breaking capacity, high arc voltage, and increasing impedance
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[0030] Embodiment one: refer to attached Figure 1-8 , the current limiting coil 8 is bent left and right outside the arc extinguishing device 4 to form a wave portion 81 . Such a structure increases the resistance of the current-limiting coil, thereby ensuring the current-limiting capability of the circuit breaker. Embodiment 1 is a molded case circuit breaker. Specifically, an insulator 9 is provided between the arc extinguishing device 4 and the current limiting coil 8 . The setting of the insulator prevents the parts in the shell from being short-circuited by the arc, which affects the performance of the product. More specifically, the insulating member is made of an insulating gas-generating material. In this way, the pressure difference of the gas generated by the insulating part and the magnetic blowing effect can be used to strike the arc more quickly and improve the breaking capacity of the product. More specifically, the insulator 9 is provided with an accommodati...
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