I have installed a surface mount 125 A combination meter main. I have
brought all my home runs, 14 of them, all except 2 are 14-2 NM cables
through two 1 1/2" knock outs from the back into the panel with a chase
nipple. Before entering the chase nipple all cables are stapled to the
stud where the panel is mounted. NOW, here is my problem, the inspector
now all of the sudden doesn't accept that (used to be accepted by him
and others just weeks ago) tells me to run them through a gutter and no
more than 2 NMs in a single connector and refers to article 312.5 in
I am hoping for help here, there are only few knock outs at the bottom
of the panel, this a Murray 125 A surface mount panel (JA2442B1125SEC)
and of course being a surface mount all are outside. My only other
option is to have min. 7 knock outs in the back of the panel, that is
to punch them, which might be another problem. The inspector could
claim that I am not allowed to punch holes there. Siemens/Murray are of
absolutly of NO help. I will think twice before using their stuff
How are you guys installing these panels with home runs or having NMs
coming into them, they got place for 24 full size breakers. Somebody
must have thought about this, it can't be that every of these panels
needs a gutter. Again your help is very mich apprerciated. By the way
the NEC referrence is the one on 2004.
PS: someone else had this question before but I couldn't find any
answer to it.
"While pawing through the 1999 NEC (the one the county inspects to) I
that 373-5(c) no longer allows the arrangement in the current box, all
the NM cables coming in through a single opening with a bushing in the
of the box.
So two questions, please.
First, what is the preferred method for bringing NM loads into a box
this? 20 or so individual cable clamps seems bad, and I don't get how
exception for one or more 18" conduits into the top of the panel is
supposed to work."