1

Most NM electrical clamps specifically list the wire combinations they allow, but others such as halex 90515 simply list a bundle diameter range (.835"-1.520")

Does that mean that I can use as many wires as I like provided they sum to within that range?

2

I would not interpret the catalog page that way.

APPLICATION: Used to connect non-metallic sheathed cable to a steel outlet box or othermetal enclosure. Dry location.

Fits NM cable, flex cords, multi-flex cords; fitting range .835 - 1.520” diameter or SE cable 2 conductor 4/0

That connector is made for a single cable. There are small connectors that can be used to secure one or two 14-2 or 12-2 cables, and some specialty connectors that are made for more small cables, but these larger clamps are for a single large cable.

  • You think it's made to support a single 1.5" NM cable? – Matthew Feb 27 at 14:48
  • Yes. These connectors are very very common and have been around forever. If it was code compliant to stuff a bundle of NM cables in a connector like this it would be very popular and people wouldn't bother with those single cable connectors, but that's not the case. – batsplatsterson Feb 27 at 20:57

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