Timeline for Why does NEC require circuit breaker locks only on hard-wired appliance circuits?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 3, 2021 at 14:40 | review | Low quality posts | |||
| Apr 3, 2021 at 17:55 | |||||
| Apr 3, 2021 at 14:12 | review | Late answers | |||
| Apr 3, 2021 at 14:35 | |||||
| Apr 3, 2021 at 14:07 | comment | added | ThreePhaseEel | UL 489 (in clause 6.1.5.7) requires circuit breakers to be trip free -- in other words, holding their handle in the ON position will not block them from tripping. (In fact, NEC 760.41(A) expressly permits the breaker supplying a fire alarm control panel to be locked ON) | |
| Apr 3, 2021 at 14:02 | review | First posts | |||
| Apr 3, 2021 at 18:16 | |||||
| Apr 3, 2021 at 13:56 | history | answered | Corey Van Dyke | CC BY-SA 4.0 |