Wire nuts in a service panel

[drange (Dave Range, CMI)]

Is there a limit to the number of wire nuts allowed inside a 100 amp service panel?

Yesterday I came across one with ten of them inside of it.

[rcooke (Roy D. Cooke, Sr)]

No big deal unless it is obviously getting Cramped .

[rmeier2 (Robert Meier)]

Conductor splices can fill the gutter space of a panel up to 75%. Given the spaces around the conductors it’s probably impossible to exceed that limit. Here’s the applicable NEC section:

312.8 Switch and Overcurrent Device Enclosures with
Splices, Taps, and Feed-Through Conductors. The wir-
ing space of enclosures for switches or overcurrent devices
shall be permitted for conductors feeding through, spliced,
or tapping off to other enclosures, switches, or overcurrent
devices where all of the following conditions are met:
(1) The total of all conductors installed at any cross section
of the wiring space does not exceed 40 percent of the
cross-sectional area of that space.
(2) The total area of all conductors, splices, and taps in-
stalled at any cross section of the wiring space does not
exceed 75 percent of the cross-sectional area of that
space.
(3) A warning label is applied to the enclosure that identi-
fies the closest disconnecting means for any feed-
through conductors.

[drange (Dave Range, CMI)]

Thanks Roy and Robert.

[jwhitt (Joseph M. Whitt)]

When I am the nut in the panel I don’t like having other nuts sticking their hands in there.

I am sorry, I see this question was already answered

[pabernathy (Paul Abernathy, CMI®, CMECP® Electrical Code Academy,Inc.)]

LOL…put the bottle down Mike…walk away from the bar;)

[kwood (KEVIN WOOD, CMI)]

Some** nuts** just go together, so maybe we can close the lid, call it **dead **on this issue and get back to weird connectors.LOL