Compact 'Open Style' Circuit board relay commonly found on Balboa Instruments PCB's. Ratings - Coil - 15v DC, contacts - 250v AC, 40A. Other coil voltages available SPST - single pole, single throw. PCB solder contacts for coil and power circuits )plus additional 6.3mm male spade contacts for external terminal connect power circuit - often utilised on the heater circuit). 27mm L x 22mm W x 15mm H