Single phase 220 volt ac motors are really two phase 240 volt motors especially when compared to three phase 208 volt motors and single phase 120 volt motors. Look at the underside of the cover for the wiring diagram which specifies which wires are used to wire the motor for 240 volts.

3 Phase 240 Volt Motor Wiring Diagram Free Picture C3
240 volt motor wiring diagram. To understand how a 240 volt also known as 220 volt household circuit works you should first know a little bit about how a regular 120 110 volt circuit worksif you are at all familiar with residential electrical wiring then you probably already know that in most cases appliances and fixtures connect to three wires. Refer to the motor manufacturers data on the motor for wiring diagrams on standard frame ex e ex d etc. Wiring a 120240 volt motor for 240 volts is as follows. Compressor source tv 83791 views. A double pole switch is the safest way to make sure that both lines of the 240 volt circuit power to the pump are turned off. Wondering how a capacitor can be used to start a single phase motor.
In this video jamie shows you how to read a wiring diagram and the basics of hooking up an electric air compressor motor. It reveals the components of the circuit as simplified shapes as well as the power and also signal connections in between the tools. Understanding 220 or 240 volt electrical circuits. Wiring a control switch for a 240 volt pump. Variety of 240v motor wiring diagram single phase. Single phase electric motor wiring tutorial.
This is because the motors single phase actually operates on the difference between the two 120 volt phases that comprise the residential 240 volt input. Rewiring a motor from 240 volts to 120 volts duration. When controlling a 240 volt motor it is best to install a double pole switch for this irrigation pump. These tips can be used on most electric motor brands such as weg baldor. How to wire a control switch for a 240 volt pump. Wiring a single phase 220 volt.
Inst maint wiringqxd 5032008 1002 am page 6. Learn how a capacitor start induction run motor is capable of producing twice as much torque of a split phase motor. Also read about the speed torque characteristics of these motors along with its different types. The advantages of a 240 volt motor. Baldor weg leeson duration. A balanced electrical load which may save on electricity compared to.
Open the wiring box cover by removing the screws and verify there are four wires inside the box for wiring the motor. Click here to view a capacitor start motor circuit diagram for starting a single phase motor. A wiring diagram is a streamlined conventional pictorial depiction of an electric circuit. These diagrams are current at the time of publication check the wiring diagram supplied with the motor. With larger motors there may be a larger junction box with lead wires that are identified with numbers or letters which will be identified by the wiring diagram of the specific motor. The wiring diagram will show that two of the motor wires are connected together for 240 volt wiring.