Littelfuse SMOV Thermally Protected Varistors with the micro-switch indicator to help designers meet the requirements specified in UL1449 (3rd edition) for Type 1 or Type 2 Surge Protection Device (SPDs) applications. SMOV Varistors safely disconnect from the circuit in a sustained overvoltage, intermediate current condition as defined by UL1449 (3rd edition). The integrated thermal element is positioned close to the MOV body to allow for a quick thermal response.
