Input/output extension for the easyE4 series control relays with a rated operating voltage of 12 VDC, 24 VDC or 24 VAC. This extension provides 4 digital inputs for 12 VDC, 24 VDC or 24 VAC, 4 relay outputs for 12 - 250 VAC or 12-220 VDC. The connections are made via screw terminals. The connection to the easy-E4 control relay or another easy-E4 extension is made using the easy-E4-CONNECT1 connector plug (item Y7-197225) which is included in the scope of delivery.