HCET Key Benefits:The first China-made round shape thermal protector got UL, TUV and CQC certifications and broke 30 years’ monopoly of German protectors.Thermal protection HCET-A-S01 is in a well-sealed design,which can prevent product failure from the vacuum impregnation process.Thermal protection switch is Small in size and suitable to be embedded inside the coil of electric motors.motor thermal overload switch with a metal casecan bear up to 50KG coil shaping pressure, which has high thermal conductivity and temperature sensitivity.Pure temperature action type products, bimetal-disc without current and heat effect, accurate temperature control.