Flaming resignation-fuse 77° C

Bosch part 63030949 is a 77°C thermal cutoff (thermal fuse) intended as an over-temperature safety component for heating, water‑heating and HVAC assemblies. As a service replacement part, it provides a compact, single‑function solution to interrupt power at the specified trip temperature, simplifying field repairs and restoring required thermal protection during maintenance. No official Bosch North America product page for PN 63030949 was found; this description is a general, category‑based summary.