Surge absorber

A surge absorber comprising:

• a surge absorbing element connected across a pair of input lines of an electronic device;
• first and second leads connected to one input line at an input side of the surge absorbing element;
• a third lead connected to the other input line;
• a thermal response switch between and connecting the first and second leads to one another and comprising:
• a first conductive spring element having an end connected to one of the first or second leads and another end comprising a pawl;
• a second conductive element having an end connected to the other of the first or second leads, another end of the second element being a hook engageable with the pawl;
• wherein at least one of the first or second elements is made of a thermally responsive metal;
• the switch being closed when the hook and pawl are engaged and open when the hook and pawl are disengaged;
• and
• wherein the hook and pawl are movable from the engaged to the disengaged position in response to a temperature increase,
• wherein the surge absorber is enclosed in a housing, the housing having a window for visually determining if the first spring element is in the disengaged position, pushing means for insertion through said window and depressing said first spring element to move said first spring element from the disengaged to the engaged position.