摘要 |
PROBLEM TO BE SOLVED: To provide a circuit breaker capable of preventing incorrect connection and carrying out connection work easily. SOLUTION: The circuit breaker is provided with a circuit breaker body 1 which has a primary side connection part 2 to be connected to DC power supply and a secondary side connection part 2 to be connected to the primary side connection part 2 through a switching means 6 consisting of a mechanical contact, a switching mechanism part 7 which has an operating handle for manual operation installed on the circuit breaker body 1 and opens and closes the switching means 6 according to operation of the operating handle, and a tripping device 8 to release the switching means 6 when an excess current flows between the primary side connection part 2 and the secondary side connection part 3. The secondary side connection part 3 includes an electric wire connection part 4 having a pair of wire connection terminals to which insulation coated wires respectively corresponding to high potential side and low potential side can be individually connected and three kinds of power supply connectors 5A-5C to which DC connection wires used for supply of the DC power are connected. COPYRIGHT: (C)2009,JPO&INPIT
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