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440.11 AC/Refrigeration Disconnect Requires Lock or Tool to Access

Revision

Change Summary

  • Where the disconnecting means is readily accessible to an unqualified person per 440.11, a tool to open is required, or be capable of being locked.

NEC®Text

Article 440 – Air-Conditioning and Refrigeration Equipment
440.11 General. Disconnecting means shall be capable of disconnecting air-conditioning and refrigerating equipment, including motor-compressors and controllers, from the circuit conductors. If the disconnecting means is readily accessible to unqualified persons, any enclosure door or hinged cover of a disconnecting means enclosure that exposes energized parts when open shall require a tool to open or be capable of being locked.

Material taken from the National Electric Code. is reprinted with permission from NFPA 70., 2023 edition. National Electrical Code®, Copyright 2022, National Fire Protection Association, Quincy, MA. All rights reserved.

Expert Analysis

A new sentence has been added to address the protection of unqualified persons in the vicinity of this equipment. Section 440.14 already addresses location.

Figure 1

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