Bill--We enlarge knockouts often. The biggest watch out is if the knock out is
close to the enclosure wall, it can be a hassle trying to fit the larger lock
nut.It's a little harder trying to drill an offset hole with a step bit, but if
there's room, we'll just make a new hole for the larger conduit to fit.
regards, bill
Bill Hennessy
Berks Solar, LLC
371 Centennial Rd
Mertztown, PA 19539
o 610 682 4300
c 484 560 4666
NABCEP certified installer
PA contractor #44411
www.berkssolar.com
On Wednesday, December 4, 2019, 10:12:08 AM EST, Jason Szumlanski
<ja...@floridasolardesigngroup.com> wrote:
I'm not sure what you're using for raceway, but if using PVC you could come
out of the inverter with 3/4 and immediately transition to 1" with a 1"-3/4"
PVC adapter. You can get (4) #6 THWN-2 in a 3/4" PVC conduit at 40% fill.
https://www.grainger.com/product/CANTEX-1-x-3-4-PVC-Reducer-4FYK1
Regardless of the conduit type, you could also just pass through a j-box rather
than splicing inside. The 3/4" KO should still be big enough for your #6
inverter output circuit.
Jason Szumlanski
| |
|
On Tue, Dec 3, 2019 at 9:05 PM frenergy <frene...@psln.com> wrote:
Wrenchers,
This particular install requires 6 Gauge for the AC output from a
few SB7.7......-41 inverters (for voltage drop). Pretty tight for the 3/4"
knock-outs in that inverter. Any harm in using a step-drill to open it up to a
1" KO? Any experiences with this? I'm trying to avoid a J-box with a
transition to 8 Gauge with 4-14 Polaris connectors.
Bill
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
www.frenergy.net
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