Chapter 3 — GENERAL REGULATIONS
301.4 Electrical Connections — 2025 California Mechanical Code
California Mechanical Code (Title 24, Part 4) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Mechanical Code (Title 24, Part 4) § 301.4 · Effective January 1, 2026 · Official source: Building Standards Commission
For equipment regulated by this code:
(1) Equipment requiring electrical connections of more than 50 volts shall have a positive means of disconnect adjacent to and in sight from the equipment served.
Exception: Other power disconnect means shall be acceptable where in accordance with the California Elec- trical Code .
(2) A 120 volt receptacle shall be located within 25 feet (7620 mm) of the equipment for service and maintenance purposes. The receptacle outlet shall be on the supply side of the disconnect switch. The receptacle need not be located on the same level as the equipment.
(3) Electrical wiring, controls, and connections to equipment and appliances regulated by this code shall be in accordance with the California Electrical Code .
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