SETFuse X Series Radial Thermal Fuses 3A – SetFuse X18, This X18 thermal fuse from SETFuse is a 86°C thermal cutoff device that carries out fast, one-time over temperature correction duties in circuits. Suitable in motor, battery, transformer, power supplies, lamps and lanterns, home electrical appliances, etc. Approvals: UL/cUL:E214712 VDE:40017055 TUV:R50161779 PSE:09020139/40/41/42/43/44 CCC:2009010205346083 KTL:SU05023-6001A/6003B SetFuse X18 86°C Radial Thermal Fuse