I have transferred the PCB of the leviton surge protection inside a metal enclosure (to avoid burning the case if the MOV burns). But the problem is the inside is much cooler now with the opening and metal heat sinking properties. This is compared to the original sealed plastic enclosure.
So the thermal fuse would take longer to open, and the MOV burning even more? If it burns more, it can burn the wirings and short circuit them.
Therefore I think I must put insulation inside that can prevent heat from escaping.. or trap the heat. Do you know what material I should cover the inside of the metal so heat won't get outside (besides covering the hole of course)?
This is assuming the MOV transfer of heat to the thermal fuse is dependent on ambient temperature, what do you think ?