Thermal Fuses – Thermal Cutoff Protection

Explore thermal fuses for temperature protection in electronic devices, power supplies, motors, heating equipment and household appliances. A thermal fuse, also known as a thermal cutoff, permanently interrupts the electrical circuit when its specified operating temperature is exceeded.

Choose the appropriate thermal fuse according to cutoff temperature, rated current, rated voltage, dimensions and mounting requirements. These components provide simple and reliable protection against overheating in electrical and electronic equipment.

How to Choose a Thermal Fuse

When selecting a thermal fuse, check the rated functioning temperature, current rating, voltage rating and physical dimensions. The cutoff temperature should be selected according to the normal operating temperature and maximum safe temperature of the protected equipment.

Thermal cutoffs are commonly used in transformers, electric motors, heaters, power supplies, appliances and electronic equipment. Unlike a resettable thermostat, a thermal fuse normally operates only once and must be replaced after it has opened the circuit.

For additional circuit and equipment protection solutions, explore the electrical protection components category.