Omron General Purpose Relay 

Part no. G2R117P-V-RP-US-SV

48VDC coil

Contact:
16A 250VAC
16A 30VDC
Single pole changeover

 - unenergised the centre contact is closed with the contact nearest the coil, once energised the centre contact changes over to close with the contact the other side.

Interestingly the connection footprint has 6 pins - mimicking a 2 pole set up, so 2 different circuits could be controlled.

Dimensions: 28mm x 25mm x 12mm

Various approval stamps, RU, SA, etc

For Omron G2R Datasheet Copy and Paste:-  http://datasheet.octopart.com/G2R117PVRPUSSV-Omron-datasheet-10910112.pdf