SIRIUS Auxiliary Switch Block, 24/230 VAC/24/110/220 VDC, 1/3/10 A, 4 Contacts, Snap-On Mount, 10000000/200000 Cycles Operating Cycles, -25 to 60 deg C Operating, Environmental Conditions: -55 to 80 deg C Storage Temperature, For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor, 41.5 mm H x 36 mm W x 47.7 mm D