| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for enabling inexpensive manufacturing of a means for preventing wrong disconnecting of a circuit breaker which is arranged on an electric power unit, and for enabling preventing of risks that an operator unintentionally disconnects input or output of a power circuit by unintentionally touching a movable switch lever. SOLUTION: A head part H of a movable switch lever A is exposed outside of a means Y, for surely preventing erroneous disconnecting operation, unit the movable switch lever A reaches from a position 1, which is an off position of the circuit breaker CB, a position 2, which is a spring-up starting position. In an on position 3, in which the circuit breaker CB is completely turned on, the head part H of the movable switch lever A is substantially inside of the means Y for preventing wrong disconnection, and the means Y for preventing wrong disconnecting has a space for enabling vertical operation of the movable switch lever A. |
