| 摘要 |
PROBLEM TO BE SOLVED: To prevent a load from being power supplied if an operating switch is operated during the maintenance and inspection of the load, in the case of maintenance and inspection of the load connected to a remote-controlled relay. SOLUTION: This remote-controlled relay is provided with microswitches 15, 16 and a remote-control hindering lever 25. The microswitches 15, 16 are series-connected to a pair of diodes 17, 18, respectively, for passing a current forward or reverse through an electromagnetic coil 6 of a bistable polarized-type electromagnet device 3 for opening or closing main contacts according to remote control, and change over the conduction correspondently to the opening/closing of the main contacts. The remote-control hindering lever 25 constrains the microswitches 15, 16 to be off so as not to actuate the electromagnetic coil 6.
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