| 摘要 |
A motor protector includes a case having an open end, a terminal plate secured to the case and having a pair of fixed contacts, a disc-shaped bimetal supported in the case and having a pair of movable contacts engaged with and disengaged from the fixed contacts respectively, a temperature-sensitive switch disposed so as to close the open end of the case and sensing the temperature of a sensed object to be turned on when the temperature thereof reaches a predetermined value, and a heater disposed in the vicinity of the bimetal and connected in series to the temperature-sensitive switch.
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