Wiring L1 and L2 on a 240 Volt Motor L1 and L2 Motor Wiring The L symbol designation refers to the Line, or the incoming circuit wires that provide the power for the motor. For example: L1 and L2 indicate that the motor How to Wire a Single-Phase 230V Motor | Hunker Wiring a motor for 230 volts is the same as wiring for 220 or 240 volts. Some motors allow both 120-volt and 240-volt wiring by providing a combination of wires for doing so. Be sure you have selected the correct wiring configuration before you begin wiring. Electric single-phase motors have many uses.