Relays Wiring Diagram. Lets say were using household voltage in this circuit which is 110120 vac. It really is meant to assist all the common person in creating a correct system.
This supply also feeds the other side of the momentary switch. Some manufacturers place a diagram and pin id on the outside of the relay case to show which pins are part of the control circuit and which pins are part of the load circuit. Terminal 30 from 12v ignition switch ign position.
Relay can be the best option to control electrical devices automatically.
Terminal 86 from one side of momentary switch. 4 pin relay 4 pin relays use 2 pins 85 86 to control the coil and 2 pins 30 87 which switch power on a single circuit. Overview of the relay trb 12vdc sb cl figure 11. Headlight relay wiring diagram the above circuit is a way to use existing headlight wiring to control 2 relays that can be placed close to the lights.