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Wiring diagrams

Wiring diagrams show the connections to the controller. Wiring diagrams, sometimes called “main” or “constructiondiagrams, show the actual connection points for the wires to the components and terminals of the controller.

Basic wiring for motor control - Technical data
Basic wiring for motor control – Technical data

They show the relative location of the components. They can be used as a guide when wiring the controller. Figure 1 is a typical wiring diagram for a three-phase magnetic motor starter.

Typical Wiring Diagram
Figure 1 – Typical Wiring Diagram

Line diagrams show circuits of the operation of the controller

Line diagrams, also called “schematic” or “elementarydiagrams, show the circuits which form the basic operation of the controller. They do not indicate the physical relationships of the various components in the controller. They are an ideal means for troubleshooting a circuit.

Figure 2 shows a typical line or schematic diagram.

Typical Line or Schematic Diagram
Figure 2 – Typical Line or Schematic Diagram

Standardized symbols make diagrams easier to read

Both line and wiring diagrams are a language of pictures. It is not difficult to learn the basic symbols. Once you do, you are able to read diagrams quickly, and can often understand a circuit at a glance. The more you work with both line and wiring diagrams, the better you will become in analyzing them.

The American Standards Association (ASA) and the National Electrical Manufacturers’ Association (NEMA) are the agencies which are responsible for setting up and maintaining the symbol standards.

Because of these standards, you will be able to read all diagrams that come across your workbench.

Title:Basic Wiring for Motor Contol – Technical Data // EATON
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Basic Wiring for Motor Contol
Basic Wiring for Motor Contol

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29 Comments


  1. Tim Nelson
    Sep 10, 2023

    The control switch for an electric hoist I have was pulled out of the wiring harness on the motor. One of the 4 wires was broken so that reconnection is obvious. The other 3 wires were pulled out of the wiring harness. If I send you pictures of the wiring diagram on the underside of the harness cover and pictures of the harness and wires could you tell me which or the three unconnected wires plug into which of the 4 harness locations?

    Many Thanks


  2. Alif
    Sep 14, 2022

    Hi,

    I purchased used motorized honey extractor. The motor is not working and there is no smell also i had rradings on multimeter.

    Can you please help me figure out which wire goes where because the seller had it wired wrong.

    Much appreciated

    Regards


  3. Thomas Green
    Sep 04, 2022

    Very straight forward and I would like to see the wiring diagram and any more detailed on how the indicator lights are integrated.


  4. Anooj AJ
    Aug 29, 2022

    Protection and Automation Engineers


  5. Shepherd Nakari
    May 28, 2022

    Helpful


  6. edward mwalimo
    Aug 16, 2021

    whats the price of this motor control panel


    • Waate Henry
      Sep 14, 2022

      Pls can you please send e a material that will help me to connect a pump to as panel then to a HMI


  7. graham banda
    Dec 05, 2020

    domestic wiring and motor control


    • Deginet Desalegn
      Jun 12, 2022

      pls send me some information


  8. Heri
    Sep 27, 2020

    Hay bos, thanks to this articles, btw can i reshare this with my language?


  9. Johnny
    Jan 04, 2019

    Knowledge of basic single- and three phase electrical systems including basic AC and DC motor control and safety measures on electrical equipment.


  10. Joseph
    Nov 02, 2018

    Really helpful

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