12 Volt DC SPST NC General Purpose Power RelaySpecifications:Single Pole Single Throw, Normally Closed ContactCoil Voltage: 12 Volt DCContact Rating:30 Amp @ 300 Volt AC15 Amp @ 600 Volt AC30 Amp @ 28 Volt DCMounting Ears on Top of CoverTerminals: 0.250″ Male Quick Connect or SolderCover Dimensions: 1-7/8″ (H) x 1.5″ (W) x 1-3/8″ (D)Overall Height: 2-1/4″, Mounting Ear Length: 2.5″Mounting Holes for #6 Screw, 2-5/32″ Center to CenterSong Chuan737-1Y-C3