ELK Products 12VDC Compact Relay 30 Milliamps 9VDC Pull-In Voltage 1.1 X 1.55 Inch ELK Products Compact Relay. Operating voltage: 12VDC nom; Current draw: 30 milliamps. Minimum pull-in voltage: 9VDC; Diode protection across relay coil. Contact ratings: 7A 30VDC, 10A 125VAC; Size: 1.1" (W) x 1.55" (H) (28mm x 39mm). The ELK-912 is a high quality 12VDC relay.