This thermostat has a limit of 290 degrees Fahrenheit and a differential of 40 degrees. Meaning that with this thermostat, the heating element will cut out at 290 degrees and cycle back on once the internal temperature drops by 40 degrees.

Used on many brands of appliances.

Aftermarket

If the limit switch has blown, it might appear black or gray upon inspection. Also, your appliance likely has lost some of its capabilities. Even if you restore power to the appliance by resetting its main circuit breakers, tripped by the limit switch, the appliance might not heat properly. Only after you replace the switch will all of the appliance's typical competences return. Don't replace the switch until you identify the reason your appliance overheated and caused the switch to trigger; otherwise the issue might happen again.