These panels have the meter at the bottom right, UG feed location at the bottom left with the supply lugs in it. The panelboard section is on the top. The panel is a combo OH/UG, if used overhead there's a metal cover called a tunnel kit which is installed to create a separate compartment for the service entrance conductors traveling from the top of the loadcenter section down into the supply side compartment.
Square D 30/42 CSED OH SE hub requirements.
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I am confused are you running SE cable in a 2" Conduit?
I thought you were talking running plain SE cable.
If it were me I'd just attach it like any other rigid conduit to a box in a indoor location, two locknuts one inside and one out and pull XHHW for the service conductors.
That is odd though that there is provisions for a hub on the bottom but not the top.
Great bite on threads. Torques to spec and comes in/out perfect. This hub edges sits flush and nice on top same as the other would( there is just a 1/4" indent between the conduit and enclosure). I appreciate all the help and replies, it is really going to come down to what the AHJ is going to say I guess, all this and he may not even look at it twice.
Probably because it does not need one and if some skilled tradesman wants to attach one he can knock himself out.
The likely outcome.
As long as its listed for the purpose (344.6) and installed per manufacturers instructions 110.3(B) your good to go.
kwired
Electron manager
- Location
- NE Nebraska
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- EC
I guess one advantage of the bolt on style hub is you wouldn't need a bonding bushing, bonding locknut, etc. if you were using metal raceway for incoming service conductors.
I'll keep that in mind if I ever do a service panel w/out meter combo. Good to know, thanks.
mtnelect
HVAC & Electrical Contractor
- Location
- Southern California
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- Contractor, C10 & C20 - Semi Retired
That uploaded picture is the utility side for underground service feed. The panel is for new work only. If you make one mistake, you make many more. Cut to the chase and put in a surface combination panel, which would have a provision for a hub. Unless the customer wants a custom installation, then remove a lot of stucco to get access to the fire blocks.
My guess, and this is just a guess since the documentation is poor, is that the A200 hub is not listed for the top of that panel and thus cant be used as a rigid conduit fitting.
If you zoom into that photo you can see the metal edges of the KO dont seem to line up well with the HUB.
If you zoom into that photo you can see the metal edges of the KO dont seem to line up well with the HUB.
mtnelect
HVAC & Electrical Contractor
- Location
- Southern California
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- Contractor, C10 & C20 - Semi Retired
Please start over ... you are trying to transform something that isn't engineered for your application.
- Location
- Wisconsin
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- PE (Retired) - Power Systems
The OP is installing the correct panel correctly. It is a semiflush panel. It is designed to be top or bottom fed when the optional tunnel has been installed.
Most of the posts against the OP seem to be from people unfamiliar with semiflush installs.
Easy enough. Sourcing the "tunnel kit" was like hunting a unicorn though. Thanks for the replies.
Thank you. I will report back what the inspector says so the next guy knows if this is an option or not... at least for my guy... "subject to AHJ"....
mtnelect
HVAC & Electrical Contractor
- Location
- Southern California
- Occupation
- Contractor, C10 & C20 - Semi Retired
mtnelect
HVAC & Electrical Contractor
- Location
- Southern California
- Occupation
- Contractor, C10 & C20 - Semi Retired
Where does the "Hub" come into play for a "Semi Flush" ?
It gives the conductors more room to get through into the tunnel. A conduit connector would protrude into the case a bit and as we all know, with these 0/2 copper cables, we can use all the room we can get.
*edit- 2/0 cables
curt swartz
Electrical Contractor - San Jose, CA
- Location
- San Jose, CA
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- Electrical Contractor
That is the standard 200 amp panel we install. Always bolt the hub to the top with (4) 1/4-20x3/4 bolts/lockwashers/nuts.
Never had any issues. The edge of the panel looks close but it doesn't stick past the inside edge of the conduit. We normally use 1-1/2 conduit so that give even more space.
Never had any issues. The edge of the panel looks close but it doesn't stick past the inside edge of the conduit. We normally use 1-1/2 conduit so that give even more space.
mtnelect
HVAC & Electrical Contractor
- Location
- Southern California
- Occupation
- Contractor, C10 & C20 - Semi Retired
I must be missing something here.
1) A customer wants to upgrade their service.
2) They have two choices, surface or semi flush
3) Surface the panel is flush on the outside
4) Semi flush the stucco must be removed to gain access to the fire blocks so the mast has access to the roof
5) Surface is less expensive than Semi Flush because it requires removal of stucco and replacement.
6) Surface requires a "Hub" Semi Flush doesn't because it is inside the wall.
What did the customer want ?
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