30 CFR 77.900-1
§ 77.900-1 Testing, examination, and maintenance of circuit breakers; procedures.
United States · 30 CFR — Mineral Resources · Status: effective
Cite this
- Citation
- 30 CFR 77.900-1, § 77.900-1 Testing, examination, and maintenance of circuit breakers; procedures, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/134116
- Permanent ID
ys:prov:134116@1- SHA-256
f1badd17b5f79080a7d8887c3e2ea8c2ef13f57905a1d7132f1148d5a9d1c273
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
Circuit breakers protecting low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment and their auxiliary devices shall be tested and examined at least once each month by a person qualified as provided in § 77.103. In performing such tests, the circuit breaker auxiliaries or control circuits shall be actuated in any manner which causes the circuit breaker to open. All components of the circuit breaker and its auxiliary devices shall be visually examined and such repairs or adjustments as are indicated by such tests and examinations shall be carried out immediately.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.