| 摘要 |
The present invention relates to an protection device of a surge protector, which comprises: a first fuse; a resistor; a switching circuit; a second fuse; and a surge protector; thereby the switching circuit can be turned ON and make the resistor be heated when the sensing end senses a low potential, and then makes the first fuse be opened due to sense heat, so as to cut off the power source.
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