3 Phase Motor Wiring Low Voltage. 3 phase low voltage motor wiring diagram i asked what the voltage was a high limit control a low water cutoff as a safety device and a thermostat setting the comfort level. A 9 wire motor can only be connected in a wye configuration whereas a 12 wire motor can be connected in either a wye or delta configuration.
U frame motors are less sensitive to overvoltage than are t frames. You must match the wiring to the both the motor nameplate specification and the power you are supplied with. A three phase motor must be wired based on the diagram on the faceplate.
L1 phase a and l3 phase.
For higher voltage and in. Likewise with 460 volts you have to wire the motor for the higher voltage configuration. For higher voltage and in. Both 9 wire and 12 wire motors can be connected for high or low voltage operation.
