Automotive Relay 12v 40a Wiring Diagram. 12v 40a relay 4 pin wiring diagram. 12 vdc automotive 5 pin relay spdt 3040a bosch type this bosch type 12v 40a relay is widely used in car sound and automotive security installations.
85 and 86 are the coil pins while 30 87 and 87a are the contact pins. 12v automotive relay wiring diagram another photograph. 12v relay 4 pin automotive 40amp 40a changeover ry15 normally open.
I cover 34 and 5 pin relays and all you need is a 12v source a multimeter and a test light.
12v 40a relay 4 pin wiring diagram wiring diagram is a simplified pleasing pictorial representation of an electrical circuit. 12v 40a relay 4 pin wiring diagram wiring diagram is a simplified pleasing pictorial representation of an electrical circuit. External dimension wiring diagram. Numbers of a relay looking at the diagram we see the pinout of a typical 12v relay.
