Relay Module, Black, 20 Ma Current Rating, Rail Mount Mounting Type, 3.457 In;87.8 MM Overall Height, 0.504 In;12.8 MM Overall Length, 3.563 In;90.5 MM Overall Width, Ce Certified;Cul Us Listed;Eac;GNV GL Standards Met, 24 V DC Voltage Rating, 56 G Weight