摘要 |
A thermal protector ( 1 ) including two fixed contacts ( 13 A, 13 B) provided at the end part of conduction terminal pins ( 5 A, 5 B) projecting into a metallic enclosed container ( 100 ), a support ( 6 ) arranged in a case, an oscillatory heating resistor ( 8 ) supported by the support and having two movable contacts ( 9 A, 9 B) facing the fixed contacts, and a heat responsive body ( 10 ) interposed between the heating resistor and the support and coupled with the heating resistor through a coupler ( 12 ). When an overcurrent flows through the heating resistor to generate heat therefrom and the temperature of the heat responsive body reaches a set level, the heat responsive body is inverted. Inverting motion of the heat responsive body is transmitted to the heating resistor through the coupler, and the current path is opened.
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