MICRO SWITCH™ High Temperature Large Basic Switches: HT Series, Single Pole Double Throw (SPDT) 3 A 125 Vac, Corrosion Resistant Enclosure, 15/32-32 Thread Bushing with Roller Plunger Actuator, Switch will Withstand Temperature of 538 °C [1000 °F], Ceramic Base with 6-32 Hex Nut Screw Termination, Mounting Holes will Accept Pins or Screws, UL, CSA