Overview

Motors can be reconditioned to reliably serve various applications instead of purchasing new ones, which can save costs and improve environmental sustainability. However, these reconditioned motors must meet specific standards and specifications for reuse in different applications and locations, as specified in Section 430.2 of the 2023 edition of the NEC. This addition is particularly important for industrial and residential end users looking to refurbish their old motors for continued usage.

Applying the 2023 Code

Reconditioned motors are electric motors that have undergone a thorough restoration process, including inspection, repair, and testing, to bring them back to their original working condition. These motors undergo rigorous procedures to ensure compliance with relevant safety and performance standards. As a result, reconditioned motors offer a cost-effective alternative to new ones while still delivering reliable and efficient operation across various applications. Moreover, the increasing focus on environmental responsibility has led companies to adopt reconditioned motors as a greener option.

Due to their reliability, cost-effectiveness, and environmental sustainability, more businesses are turning to reconditioned motors as a dependable and efficient solution for their operational needs, contributing to a growing trend in the industry. The 2023 edition of NEC introduces a new Section 430.2 to establish standardized practices for repairing, reinstalling, and reusing old motors as reconditioned motors. This section mandates that motors be reconditioned according to manufacturer and nationally recognized standards and permits only specifically identified reconditioned motors to be installed in hazardous locations.

The addition of this section helps ensure that reconditioned motors meet minimum specifications before being reused.

What’s New for the 2023 NEC?

The below presents a comparison between the 2020 NEC and the 2023 NEC regarding Section 430.2.

2020 NEC

The NEC 2020 did not cover any aspect of Reconditioned Motors.

2023 NEC

430.2 Reconditioned Motors

Reconditioned motors shall be permitted if the reconditioning has been conducted in accordance with the manufacturer’s instructions or, if no instructions are provided, nationally recognized standards.

Reconditioned motors identified for use in hazardous (classified) locations shall be listed as reconditioned if installed in hazardous (classified) locations.

Informational Note: See ANSI/EASA AR100-2020, Recommended Practice for the Repair of Rotating Electrical Apparatus, for information on the rewinding and repair of motors.