3pcs DC 48V 40A SPST Automotive Car Relay 4 Pin 4 Wires w/ Harness Socket Plug

DC 48V 40A SPST electrical relay with pre-wired relay socket harness, normally open and normally closed. Features 4 pin layout that accepts female spade terminals. 40A high switching capability. The interlocking design on the harness allows multiple harnesses to be coupled together for organization and ease of setup. Great for adding car stereo,alarm system remote start,fog lights, undercar lighting,turn on domelight,shared door handle,truck release,reverse polarity,door locks,honk the horn and more. Wire Specifications: Normally Open:Black-Power Input(Pin 30),White-Positive(Pin 85) ,Yellow-Negative(Pin 86),Red-Normally Open Ouput(Pin 87); Normally Closed:Blue-Power Input(Pin 30),White-Positive(Pin 85) ,Yellow-Negative(Pin 86),Blue-Normally Closed Ouput(Pin 87a).