TMOV is a fail-safe device, which integrated a disk varistor and a thermal fuse in a single package.
The thermal fuse is designed to disconnect the MOV from the circuit, in case of MOVs failure. Because the MOV might thermally run away due to the increasing leakage current, or burn and burst in the event of a short-circuit fault.
The TMOV can offer faster response owing to the good thermo-coupling with the physical body of the MOV. Also can substitute the standard MOV and provide enhanced security, never fire or burn, suitable for type2 SPDs, type3 SPDs, AC power supplies, power strips, solar inverters and etc.
SET TMOV series have two versions: 1. three lead wires with indication of MOVs failure, 2. five lead wires with indication and isolated remote signal. SET TMOV has been approved by UL1449 3rd Standard, and TUV and CUL.
