Motor Branch Circuit Protection

A motor branch circuit, or motor branch, is a circuit that provides power and protection for a motor. According to the National Electrical Code® (NEC®), a motor branch must have a means to disconnect the entire branch from its power supply and a means to protect the branch components from the potentially damaging effects of excessive current. How a motor branch functions and how the necessary protection is provided are the subjects of this course.

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Course Details

Learning Objectives

  • Describe a typical motor branch circuit.
  • State the functions of the following devices used in a motor branch circuit: safety switches, fuses, molded-case circuit breakers, and magnetic controllers.
  • Describe the difference between low-impedance and high-impedance grounding systems.
  • Describe typical preventive maintenance procedures for motor branch circuits.
  • Describe the basic troubleshooting procedure.
  • Specs

    Course Level Intermediate
    Languages English
    Compatibility Audio, Video, MobileReady

    Vector Solutions

    Author

    With over two decades of experience designing advanced 3D animated courseware and developing our proprietary learning management software, we pride ourselves by having developed over 1,000 safety and operations training modules, which have helped train over 250,000 workers worldwide. Our highly experienced team provides the industry with a simple and high-quality means of training their workforce. Whether your team consists of 25 people or an enterprise with thousands, we’re here to help.

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