6" NIPPLE TO 2" CONDUIT

[faresos]

Hello everyone,

I have an exterior 400A disconnect switch-NEMA 4X with 2-6" nipple at the bottom entry was used for cables portable generator cable entry. I need to run (2) 2"C to this disconnect and wondering what is the best way to modify the 2-6" nipple so I can install the 2-2"C. Any thoughts?

Thanks,

 

[jap]

A flat piece of aluminum to cover the existing holes and knock out new holes in it.

JAP>

 

[faresos]

A flat piece of aluminum to cover the existing holes and knock out new holes in it.

JAP>

Thanks for your reply. Is there any reducer fitting can be used such as 6" to 2" or even larger conduit than 2" which I might can use?

 

[jap]

Thanks for your reply. Is there any reducer fitting can be used such as 6" to 2" or even larger conduit than 2" which I might can use?

There may be a reducing bushing that large but I'm not aware of one.

I've never even heard of a 6" to 2" reducing washer either, but, that don't mean someone doesn't make one.

JAP>

 

[tthh]

I'm thinking that 6" is just way bigger than any reducer you are going to find. I'd do as jap suggests or if you have some old enclosure just sitting around cut the bottom out and screw it over the holes and use those knockouts or punch new ones.

 

[norcal]

I'm thinking that 6" is just way bigger than any reducer you are going to find. I'd do as jap suggests or if you have some old enclosure just sitting around cut the bottom out and screw it over the holes and use those knockouts or punch new ones.

I would hate to see the price of a 6" X 2" reducing bushing, if the disco is NEMA 4X, is it stainless?

 

[electrofelon]

I would hate to see the price of a 6" X 2" reducing bushing, if the disco is NEMA 4X, is it stainless?

couldnt find a 6-2 but found a 6-4!

RB600-400 RDC BUSH MALL 6 TO 4 IN NPT

RDC BUSH MALL 6 TO 4 IN NPT

www.kellyhayes.com

Here is a 6-5 in stainless (ouch my bottom!)

https://www.lightingsupply.com/garvin-rb-600500-ss.aspx

 

[MTW]

I would look at a galvinized bushings with some sealing rings or locknuts.

6 x 2 inch NPT Galvanized Malleable Iron Reduction Bushings

Bushing Type: Hex Reducing threaded per ASME B1.20.1, Coating: Hot Dipped Galvanized per ASTM A153, Material: Malleable Iron conforms to ASTM A197, Dimension per ASME B16.3, Class: 150, Nominal Pipe Sizes: 6 x 2 inch NPT, Length A: 2.2 inch, Width B: 3.35

www.pipefittingsdirect.com

 

[synchro]

You could have the 6" nipples enter a NEMA 4X trough and then run whichever size conduits you want from there.

For example, perhaps one of the troughs listed here:
https://hoffman.nvent.com/en-us/products/stainless-steel-screw-cover-wiring-trough-type-4x

 

[kwired]

If it is stainless have someone familiar with stainless welding/fabrication experience modify it for you, probably won't cost much much different than purchasing stainless fittings for it, if they do work for sanitary food production and such it won't even look like anything was modified when they are done.

 

[LarryFine]

I've never even heard of a 6" to 2" reducing washer either, but, that don't mean someone doesn't make one.

It's easy enough to make a pair by punching holes in two pieces of metal, and no hardware needed.

Use 7" or 8" squares, or two rectangles if the two existing knockouts are close enough to each other.

The outside doesn't have to be round, and the new holes don't have to be centered in the old holes.

 

[jap]

It's easy enough to make a pair by punching holes in two pieces of metal, and no hardware needed.

Use 7" or 8" squares, or two rectangles if the two existing knockouts are close enough to each other.

The outside doesn't have to be round, and the new holes don't have to be centered in the old holes.

I'd put the aluminum plate in before I'd do that.

JAP>

 

[jap]

You could have the 6" nipples enter a NEMA 4X trough and then run whichever size conduits you want from there.

For example, perhaps one of the troughs listed here:
https://hoffman.nvent.com/en-us/products/stainless-steel-screw-cover-wiring-trough-type-4x

That's a good idea also.

Just be sure to include in your bid the cost for a couple of Sealing Fittings & a 6" KO or Holesaw that it's going to take to cut through that stainless gutter.

JAP>

 

[synchro]

Just be sure to include in your bid the cost for a couple of Sealing Fittings & a 6" KO or Holesaw that it's going to take to cut through that stainless gutter.

There are some listings on Ebay for 6" punches and dies:

https://www.ebay.com/sch/i.html?_nk..._odkw=milwaukee+49-16-2689+46-16-2688&_sop=15

The listing for the punch itself with a $400 asking price ends after tomorrow.

 

[jap]

There are some listings on Ebay for 6" punches and dies:

https://www.ebay.com/sch/i.html?_nk..._odkw=milwaukee+49-16-2689+46-16-2688&_sop=15

The listing for the punch itself with a $400 asking price ends after tomorrow.

Then put it back up for sale after you use it cause it will probably be the last time you'll need it.

JAP>

 

[norcal]

There are some listings on Ebay for 6" punches and dies:

https://www.ebay.com/sch/i.html?_nk..._odkw=milwaukee+49-16-2689+46-16-2688&_sop=15

The listing for the punch itself with a $400 asking price ends after tomorrow.

If it was a 1 time need, a holesaw would be better & there would be a chance it could be used for something else, although larger holesaws are not exactly cheap either but cheaper then a punch.