The Whirlpool WP4449751 thermostat thermal cut-off fuse helps protect a compatible microwave from excessive heat during operation. Designed as a safety component within the microwave’s electrical system, it monitors temperature and interrupts the circuit when heat reaches a specified limit, helping prevent continued operation under overheating conditions. This protective function can ... https://www.partsmelange.ca/whirlpool-wp4449751-thermostat-thermal-cut-off-fuse-for-microwave