Omron Automation ZEN8E1DRProduct Attribute Attribute Value Application Communication Current, Supply 3. 7 mA Depth 2. 126" (54mm) Dimensions 90 x 35 x 54 mm For Use With Programmable Relays Input Type DC Voltage Length 3. 543" (90mm) Mounting Type DIN Rail Mount ; Panel Mount Number of Inputs 4 Input Number of Outputs 4 Output Output Type Relay Primary Type Expansion Series ZEN Series Special Features Half Size Expansion I O Unit Standards cULus Listed, EN IEC 61131 2 Clause