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    Everything you need to know about motors and motor controls, including selection, installation, operation, maintenance, performance, repair, and standards

    Highlights

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    Video camera

    EC&M Tech Talk Video — Code Requirements for Disconnecting Means

    March 1, 2023
    Randy Barnett reviews the many of the more requirements in the NEC, NFPA 79, and NFPA 70B in Episode 24.
    © Thor Jorgen Udvang Dreamstime.com
    Motor

    The Apprentice’s Intro Guide to Motors

    Feb. 9, 2023
    How to apply NEC Art. 430 for motors, motor circuits, and controllers in the field
    © David Spates | Dreamstime.com
    Technician With Air Handler Blower Motor Maintenance

    NEC: Air Conditioning and Refrigerating Equipment — Part 3

    Jan. 3, 2023
    Article 440, Part 3 provides the requirements for the branch-circuit short-circuit and ground-fault protection used in HVAC and refrigeration equipment.
    © Wiroje Pathi | Dreamstime.com
    Industrial Chiller Motor Maintenance

    NEC: Air Conditioning and Refrigerating Equipment — Part 2

    Dec. 6, 2022
    Requirements for the disconnecting means of HVACR hermetic motors
    Randy Ecm Asks Feature Image 2

    EC&M Asks Video — Can the Main Grounding Electrode Conductor Be Spliced?

    Nov. 28, 2022
    Randy Barnett answers reader-submitted questions regarding grounding and bonding topics.

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    A disconnect location depends on whether it is for the controller or the motor.
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