Siemens 3TX7462-3H Surge Suppressor 150V Rating

Siemens 3TX7462-3H is an adhesive-on surge suppressor (varistor) designed to be mounted directly onto contactors (sizes 3 through 12) to absorb transient spikes on control coils. It supports AC operation in the 48–127 V range and DC operation in the 70–150 V range, with an initial rated value of 70 V DC and a final rated value of 150 V DC. This 3TX7462-3H variant belongs to Siemens' 3TX family of surge-suppressor devices and is intended for use on contactors of sizes 3 to 12, typically mounted with adhesive backing on the coil area to suppress transients. By clamping surges at the coil, it reduces arcing and wear on relays and contactors, potentially extending service life in industrial control panels and machinery. Common applications include protection of control circuits in automation systems where a glue-on surge suppressor is appropriate.