Door Lock Circuits
The diagram above is a power switched or positive pulse door lock circuit. It contains two relays. Relays are electronically controlled switches that allow manufacturers to use low current to control high current devices.
By using relays, manufacturers can use lightweight, thin gauge wiring for the door switches to control the high current door actuator motors. These switches and a thinner gauge wiring send a low amperage signal to the lock or unlock relay according to the switches position. The relay then completes the high amperage circuit activating the door lock actuators.