Zelio SSM relays do not have any moving parts to wear out. Combined with vibration resistance, arc-less switching and the lack of acoustical noise, solid state relays are the ideal product for switching applications that demand reliable execution. This solid state relay mounts on symmetrical DIN rail. This solid state relay has zero voltage switching. The control input volage is 90 to 280 V. The load output voltage is 48 to 660 V. The load current rating is 30 A. Solid state relay is 3.89 inches tall, 0.89 inches wide and 3.85 inches deep. The relay weighs 0.62 lbs. The solid state relay is UL component recognized and CSA certified. This product is certified by UL, CSA, EAC and CE marking. It meets IEC 60950-1, CSA C22.2 No 14 and UL 508 standards. It supports symmetrical DIN rail mount. Harmony Solid State Relays are the complete solution for 1 phase and 3 phase, slim, modular DIN rail and panel mount offer. SSR relays offer slim interfaces, modular DIN rail and panel mount relays. A complete, innovative and compact solution for industrial applications.