| 摘要 |
PURPOSE: A molded-case circuit breaker of a locking type is provided to prevent a safety accident by stopping other user from inputting power by performing a function of a molded-case circuit breaker. CONSTITUTION: An open and close device part(2) turns on and off an electric circuit. A key lever(10) is combined with and separated from the open and close device part. A combing protrusion(10b) is formed in a side of the key lever. A key cover(70) is formed to cover the combing protrusion of the key lever. A lock shaft hole(80) corresponding to a lock shaft is formed in an open and close device part frame(3).
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