This is a Brand New Microtemp Furnace Fuse. It is rated at 167 Deg C. Trane Part # is FUS00620 and it is rated at 167C. Plug and Play- 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.
FUS00698 FUS698 167C