Motor Starters and Contactors

Learning Objectives

After studying this section, students should be able to:

  • Describe common electrical ratings as they apply to motors and motor starters.
  • Describe and identify common styles of overload-protection devices.
  • Describe and identify manual motor starters and their applications.
  • Describe and identify the components and functions of magnetic motor starters used for both single direction and forward/reverse applications.
  • Describe the function and application of control relays.
  • Describe the function and application of timer relays including on-delay relays and off-delay relays.

License

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Basic Motor Control Copyright © 2020 by Aaron Lee and Chad Flinn is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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