You are using an unsupported browser. This web site is designed for the current versions of Microsoft Edge, Google Chrome, Mozilla Firefox, or Safari.
The Office of the Federal Register publishes documents on behalf of Federal agencies but does not have any authority over their programs. We recommend you directly contact the agency associated with the content in question.
If you have comments or suggestions on how to improve the www.ecfr.gov website or have questions about using www.ecfr.gov, please choose the 'Website Feedback' button below.
If you would like to comment on the current content, please use the 'Content Feedback' button below for instructions on contacting the issuing agency
Enhanced content is provided to the user to provide additional context.
This content is from the eCFR and is authoritative but unofficial.
Navigate by entering citations or phrases (eg: 1 CFR 1.1 49 CFR 172.101 Organization and Purpose 1/1.1 Regulation Y FAR).
Choosing an item from citations and headings will bring you directly to the content. Choosing an item from full text search results will bring you to those results. Pressing enter in the search box will also bring you to search results.
Background and more details are available in the Search & Navigation guide.
| Subpart 111.40 | Panelboards | 111.40-1 – 111.40-15 | |||||||||||||||||||||
| |||||||||||||||||||||||
46 U.S.C. 3306, 3703; DHS Delegation No. 00170.1, Revision No. 01.2. Section 111.05-20 and Subpart 111.106 also issued under sec. 617, Pub. L. 111-281, 124 Stat. 2905.
CGD 74-125A, 47 FR 15236, Apr. 8, 1982, unless otherwise noted.
This content is from the eCFR and may include recent changes applied to the CFR. The official, published CFR, is updated annually and available below under "Published Edition". You can learn more about the process here.
Subscribe to: 46 CFR Part 111 Subpart 111.40
View the most recent official publication:
These links go to the official, published CFR, which is updated annually. As a result, it may not include the most recent changes applied to the CFR. Learn more.
Information and documentation can be found in our developer resources.
The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.
Learn more about the eCFR, its status, and the editorial process.
Each panelboard must meet Section 9.10.1 of IEEE 45.1-2017 (incorporated by reference; see § 110.10-1 of this subchapter).
[USCG-2020-0075, 88 FR 16362, Mar. 16, 2023]
Each panelboard must have a noncombustible enclosure that meets §§ 111.01-7 and 111.01-9.
[CGD 94-108, 61 FR 28279, June 4, 1996]
Each panelboard must be accessible but not in a bunker or a cargo hold, except a cargo hold on a roll-on/roll-off vessel.
[CGD 94-108, 61 FR 28279, June 4, 1996]
The door of each panelboard enclosure that is accessible to any passenger must have a locking device.
(a) Each panelboard switching unit must be numbered.
(b) Each panelboard must have:
(1) A circuit directory cardholder; and
(2) A circuit directory that has:
(i) The circuit designation of each circuit;
(ii) A description of the load of each circuit; and
(iii) The rating or setting of the overcurrent protective device for each circuit.
Each panelboard must have a current rating not less than the feeder circuit capacity.
The total load on any overcurrent device located in a panelboard must not exceed 80 percent of its rating if, in normal operation, the load will continue for 3 hours or more; except if the assembly, including the overcurrent device, is rated for continuous duty at 100% of its rating.