In the following starter wiring diagram, we have a motor contactor panel with three wires connecting to the different segments of the operator control station. The typical starting system wiring diagrams can be divided into non-relay control, single starter relay, and security starter relay control types. As illustrated here, the primary function of the starter wiring circuit is to use the small current from the car battery to control the large current of the car starting circuit. With EdrawMax, creating a similar starter wiring diagram is very easy. The 2D wiring diagram maker comes with free templates and symbols that easily create such detailed electronic diagrams.