This is a Brand New Microtemp Furnace Thermal Cutoff Fuse. It is rated at 128 Deg C. Has part # G8AM0400 and is designed to replace Trane/American Standard part #s FUS1348 & FUS01348. Plug and Play- Thanks for looking and good luck!
A limit switch is a safety device designed to shut down a piece of equipment. Limits have a set point, which is in some cases, adjustable. The set point prevents the temperature or pressure from exceeding the rating of the switch.
FUS1348 FUS01348 G5AM0400