Thermal fuse
One-shot thermal fuse (SEFUSE type) · 250 V 10 A · opens for good at 95 °C · clip it to the part it guards

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Lessons and builds that use it
- Real device: electric fan, 220 V AC to moving air (build)
- Real device: water heater, 220 V AC to hot water (build)