Thermal Fuse : SW-2 Series

Thermal fuses are circuit breakers in temperature sensing devices to cutoff the circuit by detecting overheat caused from fire, short circuit, or abnormal electronic operation. 

Thermal fuses are not reusable once they were used, but they work once only in the function temperature. 

SW-2 series is composed of axial symmetric leads, the thermal element of metal compound that is melting in a defined temperature, special compound to prevent the oxidation of the element, and ceramic insulator.

The special resin compound begins liquefaction when the ambient temperature rises.

It generates a surface tension when the temperature reaches to the melting point of the thermal element.

Followed by the melting of metal compound that linked two leads, pulling back to the leads, and breaking the circuit permanently.

Features

■ Thermally stable insulation type with organic material as a fusible element

■ Metallic Case, Axial, Spring action type

■ Compact, high current capacity, sensitive to ambient temperature

■ Single operation for over-temperature protection  

Technical Range

■ Cutoff Temperature Range : 98℃ ~ 145℃

■ Rated voltage : 250VAC

■ Rated current : 2A at 250VAC

■ Maximum allowable interrupting current : 3A at 250VAC

■ Transient overload current : DC current pulses, with an amplitude 30A and a duration of 3ms with 10s intervals, are applied for 100 successive cycles through the current path.

Application

■ Electric home appliances : Refrigerator, TVs, Computers

■ Cook appliances : Grills, Induction cookers, Gas Stoves, Fryers

■ Heating devices : Boilers, Hot water appliances, coffee machine

■ Beauty appliances : Hair Driers, Hair Straighteners 

Sentrion specializes in customized products. Please contact us for various options.