A temperature-controlled device for switching off a heating device at a limit temperature has a thermo-mechanical temperature sensor device, a switch-off device, and manual reactivation means. The switch-off device has switching means which are activated by a trigger for switching off the heating device. The manual reactivation means have a movable handle and transmission means for transmitting a force of an operator for reactivating the switching means after switching off the heating device by the trigger. The transmission means have a click spring which at the beginning is in a basic position and, when an operating force acting on said click spring exceeds a certain limit force, clicks to a deflected position. Said click spring in the basic position enables reactivating or re-switching on, respectively, of the switching means. Said click spring in the deflected position releases so much movement path on the transmission means for the switching means that said switching means by the temperature sensor device and by the switch-off device above the limit temperature are activatable and switchable by the trigger.