Importance

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Abstract

There is provided a circuit breaker handle lock device capable of enhancing work safety. By inserting slide pins through a first slotted hole of a locking plate and a second slotted hole of a lock plate and connecting the slide pins to a slide part, a handle catch and the lock plate are arranged to be slidable in the movement direction of a knob part with respect to the locking plate. A second lock hole of the slide part and a first lock hole of the locking plate communicate with each other at the OFF position of the knob part, and the locking plate is blocked with the second lock hole at the ON position of the knob part. The lock plate moves in the movement direction of the knob part while blocking the first slotted hole of the locking plate.

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First Claim