Wiring L1 and L2 on a 240 Volt Motor
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What do the L1 L2 and T1 T2 wiring diagram abbreviations mean when wiring an electrical motor? L1 and L2 Motor Wiring, T1 T2 T3 T4 T5 Motor Lead Wires. © By: Dave Rongey |
Wire a 240 Volt Motor
Electrical Question: What do the L1 L2 and T1 T2 wiring diagram abbreviations mean when wiring an electrical motor?
My electrical wiring project involves wiring a 240volt motor.
- I am trying to run power to a 240volt electrical motor I bought but I do not know what the abbreviations mean and how to read the diagram that came with the new motor. The diagram doesn’t make any since. For example what is L1 and L2? I am assume that is the power legs. The motor can be hooked up to 110 or 240, and also supposedly reversed. There are wires marker like T2 T3 T4 T5 and so on, which I assume you have to twist together with certain wires. The directions are horrible.
This electrical wiring question came from Marlon, a Homeowner in Kings Mountain, North Carolina.
Dave’s Reply:
Thanks for your electrical wiring question Marlon.
How to Wire a 240 Volt Motor
Application: Wire a 240 Volt Motor.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor, or Certified Electrician.
Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety: Identify the electrical power source to the 240 Volt Motor, turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials for the 240 Volt Motor should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in Kings Mountain, North Carolina. A permit and inspections may also be required.
Resources to help you do electrical wiring in your area:
Locate Electricians or Electrical Contractors in North Carolina
North Carolina Electrical Contractor License, Building Permits and Electrical Codes
Basic Wiring for a 240 Volt Motor
This electrical wiring project is about wiring a new 240volt motor.
Wiring a 240 Volt Motor
IMPORTANT:
There are many types of electric motors, and many wire connections, and some are very specific to the type of motor and its intended application. There are also a variety of voltage ranges that motors are made for, and the voltage is not the same for all motors. The voltage is also different in other countries. Therefore, consult the installation instructions that came with the motor to identify the circuit voltage that will be compatible with the motor, and what the circuit requirements will be. Some motors will require a dedicated circuit and specific amperage rating.
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 voltage may be 240 volts.
T1 T2 T3 T4 T5 Motor Lead Wires
The T symbol designation refers to the Terminal or Termination, which in this case is a wire lead that is part of the internal motor windings. Some motor applications will require that certain T wire leads be wired together. In most cases the connections of the motor wires will depend on the voltage that the motor will be connected to. If the incoming circuit voltage does not match a voltage that the motor has listed then the motor should not be connected.
More about Wiring a Circuit a 240 Volt Motor
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Wiring 240 Volt Electrical Outlet
Home electrical wiring includes 110 volt outlets and 240 volt outlets and receptacles which are common place in every home. See how electrical outlets for the home are wired.
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Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.
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