MODULE: ZT601-12V-A PCB relay,12V,SPST, 4PINS, suitable for automobile used for PCB board, door, control, alarms, horn, headlight and more.... Shape Dimensions(mm):15.7*12.5*14 Switching Current: 20A 30A Contact Arrangement:1A 1B 1C Coil Voltage: 6VDC, 12VDC, 24VDC, 48VDC Layout (Bottom view):  Electrical Life: 10⁵ ops Wiring Diagram