FAQ

Material taken from the National Electric Code

is reprinted with permission

from NFPA 70

, 2023 edition. National Electrical Code

NEC

Text

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 unqualied 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.

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.

Material taken from the National Electric Code

is reprinted with permission

from NFPA 70

, 2023 edition. National Electrical Code

NEC

Text

Revision

445.18(A)(B) Generator Disconnect –

Parallel Installations and Location

Change Summary

• Revision clariﬁes the separation of an emergency

shutdown and a disconnecting means.

Article 445 – Generators

445.18 Disconnecting Means.

(A) Disconnecting Means. Generators other than cord-

and-plug-connected portable generators shall have one or

more disconnecting means. Each disconnecting means shall

simultaneously open all associated ungrounded conductors.

Each disconnecting means shall be lockable open in

accordance with 110.25.

The disconnecting means shall be permitted to be located

within the generator behind a hinged cover, door, or

enclosure panel. Where the generator disconnecting means

continued on page 86