The Omron G2R-112S-V-US DC12 is a general-purpose relay with a 12 VDC coil, SPDT contact arrangement, and a current-production lifecycle stage.
The 12 VDC coil voltage is the nominal operating level; the relay will pick up reliably at that voltage and hold in across the standard tolerance band typical of Omron's G2R series. The SPDT (single-pole double-throw) contact set switches one circuit, common for signal or low-power load isolation in control panels.