TMOV34S Varistors from Littelfuse carry UL1449 recognition to 750VAC to protect circuits from abnormal overvoltage conditions. TMOV34S Varistor Series’ higher voltage range makes it an ideal solution for solar power inverter and high voltage power supply applications. The Series is available at distributor Rutronik as of now.
Devices in the TMOV34S Varistor Series combine a 34mm-square-format Varistor element (MOV) with high surge capability (up to 40kA) with an integrated thermally activated element. This element will open in the event of overheating due to abnormal overvoltage, limited current conditions. Some TMOV34S devices include a monitor lead, which may be connected to signaling circuitry to indicate if the MOV has been disconnected from the circuit. Due to the close proximity of their integrated thermal element to the MOV body, they can offer quick thermal response in a far smaller component than solutions that rely on mechanical designs.