| 摘要 |
PROBLEM TO BE SOLVED: To realize simplification and size-reduction of a voltage trip device and facilitate assembly thereof, by utilizing an auxiliary switch or an interior accessory component of a molded-case circuit breaker. SOLUTION: In this molded-case circuit breaker, a voltage trip device 13 for tripping the breaker according to external commands and an auxiliary switch 12 responding to on/off motions of the breaker are mounted as breaker interior accessory components in a breaker case 1. The auxiliary switch 12 is used as a burn prevention switch for a solenoid coil in the voltage trip device 13, the auxiliary switch 12 and the solenoid coil are interconnected by using a flexible printed circuit board 14 laid within a body case as crossover lead wires, and external lead wires 15 of the voltage trip device 13 can be led out to the lateral side of the case or to the side of a load by selecting either of guide grooves 16a, 16b provided in an upper cover 3 of the breaker case 1.
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