![]() Typically there is a bracket that snaps into the panel under the area where the breaker will mount. The idea here is that you can't pull a breaker with live conductors loose and have it flopping around in the panel. Plug-in-type overcurrent protection devices or plug-in type main lug assemblies that are backfed and used to terminate field-installed ungrounded supply conductors shall be secured in place by an additional fastener that requires other than a pull to release the device from the mounting means on the panel. The NEC addresses this as follows:Ģ005 NEC®© 408.36 Overcurrent Protection. The power is applied to the breaker terminals where a branch circuit might go. A backfed panel generally refers to the illegal practice of hooking up a standby generator to a panel through a breaker without the benefit of a safety interlock.Ī backfed main breaker, as noted above, is the entirely legal (and common)practice of taking a panel (usually)equipped with main lugs and installing a branch circuit style(plug on)breaker that is used as a main breaker. ![]() ![]() The differences in terminology are subtle. ![]()
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