VirutalElectrician
Senior Member
- Location
- Mpls, MN
- Occupation
- Sparky - Trying to be retired
I have about two dozen LED wall packs I need to mount to the side of a pole barn...Think ribbed steel if you are unfamiliar.
I've been Googling for ideas and the industry in general seems to have failed here. No one has come up with a decent solution and lots of hacked up ideas out there.
The back looks like this:
the inside:
The documentation states: "The back plate has a cast-in drill and knock-out template to match any standard recessed junction box"
Which seems to be a lie. A round pan box fits nicely in the recessed circle, but no such knock outs exist on the inside to put screws through to secure them together.
They have 1/2" threaded holes on the side and bottom for conduit, but that would be unsightly to use when the back should be more than adequare.
The 3 smaller round recesses are for 5/8 bolts. But on an uneven surface like ribbed steel, there wouldn't be a good way to seal them once you penetrate the structure as there'd 1/2 space between the wall and the fixture. Enough for water, but not enough to room to get back there and seal it up once the bolts are in place.
I found these stand off type things used for mounting solar panels to pole barns:
Which might just work, but there's still the issue of attaching a box to the back of the device. Would have been nice if they had just put another 1/2 threaded hole there instead of the mess that's there now.
I contacted Hubbell in regards to how much weight their boxes were designed to hold, they said boxes with 6/32 screws are designed to hold 6lbs. They also make some Light packs (the LNC4 series) that appear to be designed to be supported by a 2 gang outdoor box. So I asked them what box is supposed to be used to support their heavy LNC4 devices, but haven't heard back yet.
I've been Googling for ideas and the industry in general seems to have failed here. No one has come up with a decent solution and lots of hacked up ideas out there.
The back looks like this:
the inside:
The documentation states: "The back plate has a cast-in drill and knock-out template to match any standard recessed junction box"
Which seems to be a lie. A round pan box fits nicely in the recessed circle, but no such knock outs exist on the inside to put screws through to secure them together.
They have 1/2" threaded holes on the side and bottom for conduit, but that would be unsightly to use when the back should be more than adequare.
The 3 smaller round recesses are for 5/8 bolts. But on an uneven surface like ribbed steel, there wouldn't be a good way to seal them once you penetrate the structure as there'd 1/2 space between the wall and the fixture. Enough for water, but not enough to room to get back there and seal it up once the bolts are in place.
I found these stand off type things used for mounting solar panels to pole barns:
Which might just work, but there's still the issue of attaching a box to the back of the device. Would have been nice if they had just put another 1/2 threaded hole there instead of the mess that's there now.
I contacted Hubbell in regards to how much weight their boxes were designed to hold, they said boxes with 6/32 screws are designed to hold 6lbs. They also make some Light packs (the LNC4 series) that appear to be designed to be supported by a 2 gang outdoor box. So I asked them what box is supposed to be used to support their heavy LNC4 devices, but haven't heard back yet.
