Mersen’s Surge Trap STMT Series features low voltage surge protective devices suitable for both AC and DC voltage applications. UL 1449 4th Edition approved, this series is ideal for the protection of controls, power supplies, communication systems, and other sensitive equipment. With a slim design, these DIN-rail mount SPDs are ideal for limited space applications. The series is suitable for operating voltages of 12-230 VAC and 24-365 VDC and offers an optional dry contact feature for remote monitoring.