Understanding the rating on rv pedestals

[Necnerd]

the top of the drawing shows how I thought . I was hoping to get 200amp rated back to back pedestals run 250/250/250/3/0 aluminum from a feed through 200 amp service disconnect and then loop to the next set of back to back for a total of 4 sites.

The problem is I’m not finding any back to back sites that are rated at 200amps. Is there any way to use these 100 amp rated back to pedestals with 200 amp circuit or will I have to use the 200 amp singles that I have found?



The other way I see to do it would be the bottom part of the drawing.

Run (2) 100 amp circuits fed to from service disconnect panel to each 100 amp back to back rv pedestal location.


Originally the customer wanted 4 seperate sites so I was going to buy 200 amp rated singles with 50/30/20a outlets. Now he’s wanting back to backs and I’m trying to figure out what’s the best plan or if I can

I was hoping to use the loop through options at 200 amp because with the demand factor, 4 sites = 150 amps, and 6 sites = 180a this way if for if in the future they wanted to say add two more sites we could loop out of the closest rv pedestal and feed the two new sites.

Other way is drawing three and that would be to stagger the 200a singles and run a 200a circuit and use the loop through options to feed them.

 

[Necnerd]

200 amp single site pedestals staggered may be the way to go now that I’m looking at it…

 

[Necnerd]

All the back to back options from
Midwest are 100amp.

 

[Necnerd]

This is the 200amp single pedestal from midwest I found, but this is the only 200amp rated site I’m finding from them.

 

[Dennis Alwon]

Why would you use drawing #1? The capacity of the service is 200 amps so there is no need to run 200 amps to all panels.

 

[Necnerd]

I thought I would need to feed 200 amp circuit to 4 rv panels because I’d be looping through each pedestal. 4 sites with demand factor comes out to 150 amps…

 

[Dennis Alwon]

Calculate the load for each panel. Personally, I would run 4 separate feeders. If you know the 4 panels have a demand of 150 then you can run 200 amps to the first one then reduce wire and breaker from panel 1 to panel 2 and so forth

 

[Necnerd]

Calculate the load for each panel. Personally, I would run 4 separate feeders. If you know the 4 panels have a demand of 150 then you can run 200 amps to the first one then reduce wire and breaker from panel 1 to panel 2 and so forth

Thank you for the input I really appreciate it!
6 sites = 180a
4 sites = 150a
3 sites = 120a
2sites = 90a
1 site = 50 amp

So you would run 4 insidvidual 50a circuits to each pedestal. And each pedestal would have a 100a rating

I was hoping to use 200 amp rated pedestals with out main breakers, and just looping through each one for a total of 4sites.
Possibly 6 in the future.

The only issue I see with reducing from each pedestal is that they don’t have main breakers and I planed on using the loop through lugs, also if they ever add the extra two sites making a total of six sites I’d have to re wire instead of just adding on…

 

[Necnerd]

What is the difference between 100a rated rv pedestal and 200amp pedestals? Is it how many pedestals you can loop through?

Say 100amp rated rv pedestals could have 1 100 amp circuit feeding 2 rv pedestal sites using the loop through lugs @ each pedestal

But a 200 amp rated rv pedestal could have 1 200 amp circuit feeding 4 sites (possibly 6) using the loop through lugs @ each pedestal ?

 

[augie47]

What is the difference between 100a rated rv pedestal and 200amp pedestals? Is it how many pedestals you can loop through?

Say 100amp rated rv pedestals could have 1 100 amp circuit feeding 2 rv pedestal sites using the loop through lugs @ each pedestal

But a 200 amp rated rv pedestal could have 1 200 amp circuit feeding 4 sites (possibly 6) using the loop through lugs @ each pedestal ?

I didn't check the math on the number of pedestals (and it fepe4nds on the receptacle ratings at each) but, yes, the 200 amp pedestals allow a 200 amp feeder thus more pedestals per run.

 

[MTW]

This is the 200amp single pedestal from midwest I found, but this is the only 200amp rated site I’m finding from them.

Did you look at this product line ?

Milbank - RV and Mobile Home Pedestals

Milbank offers pedestals, direct bury and pad-mount power outlets and accessories providing power distribution for mobile homes, campgrounds, and RV parks.

www.milbankworks.com

 

[Necnerd]

I didn't check the math on the number of pedestals (and it fepe4nds on the receptacle ratings at each) but, yes, the 200 amp pedestals allow a 200 amp feeder thus more pedestals per run.

All sites will have a 50/30/20 amp receptacle. And should be figures at 12,000 va per site…


So if I’m understanding correctly.

100amp rated rv pedestal would only allow you to feed two pedestals. I believe the 24000x.9/240volt = 90amps

200 amp rated pedestal would allow you to feed up to 6 pedestals.

12,000x6=72,000
72,000x.6=43,200 va
43,200 va/ 240volts = 180amps

Either option will work, but if I wanted to feed through 200 amps to 4 pedestals I would need 200amp rated pedestals

I could use 100amp rated pedestals but would be running 100 circuit to each set of 2 rv pedestals..

 

[Necnerd]

Did you look at this product line ?

Milbank - RV and Mobile Home Pedestals

Milbank offers pedestals, direct bury and pad-mount power outlets and accessories providing power distribution for mobile homes, campgrounds, and RV parks.

www.milbankworks.com

I looked just now but didn’t see anything rated for 200 amps

 

[MTW]

I looked just now but didn’t see anything rated for 200 amp

They have several models with feed thru lug assemblies, metered and un-metered with lugs up to 350kcmil, single and dual head.

Each section has up to 125A rating and Short circuit current withstand rating 10,000 RMS

Milbank - Versa-Ped Series Pedestals for Mobile Home Applications

Milbank's Versa-Ped Series provides power distribution for mobile homes, lot line metering and more.

www.milbankworks.com

 

[Necnerd]

They have several models with feed thru lug assemblies, metered and un-metered with lugs up to 350kcmil, single and dual head.

Each section has up to 125A rating and Short circuit current withstand rating 10,000 RMS

Milbank - Versa-Ped Series Pedestals for Mobile Home Applications

Milbank's Versa-Ped Series provides power distribution for mobile homes, lot line metering and more.

www.milbankworks.com

If I understand correctly you would only be able to feed/loop through 3 pedestals fed from a 125a circuit.

Or are you saying you could feed this with a 200a circuit? And loop 4 to 6 sites out?

 

[kwired]

Why would you use drawing #1? The capacity of the service is 200 amps so there is no need to run 200 amps to all panels.

Would need additional overcurrent device wherever you reduce conductor to less than 200 amps to comply with feeder tap rules. If longer run of conductor possibly ok, shorter run likely still overall less cost to just feed through with 200 amp conductor especially if using aluminum conductor. Copper maybe not.

 

[kwired]

This is the 200amp single pedestal from midwest I found, but this is the only 200amp rated site I’m finding from them.

Been maybe 20 years since I installed any these, I could swear the ones I did were double sided, 50/30/20 amp outlets each side, 200 amps and Midwest Brand. Could possibly been Milbank though.

 

[Dennis Alwon]

Would need additional overcurrent device wherever you reduce conductor to less than 200 amps to comply with feeder tap rules. If longer run of conductor possibly ok, shorter run likely still overall less cost to just feed through with 200 amp conductor especially if using aluminum conductor. Copper maybe not.

I believe, stating that I would run 4 feeders would indicate that there would be overcurrent protection.

 

[MTW]

If I understand correctly you would only be able to feed/loop through 3 pedestals fed from a 125a circuit.

Or are you saying you could feed this with a 200a circuit? And loop 4 to 6 sites out?

You need to contact the manufacturer and find out from them what the pass thru lug block is rated for.
I don't see why you couldn't string as many of them as needed along a run, as , long as you keep the over current protection below the pass through block and wire rating. The 125A rating is just for the upper section, wiring and bus section. The lower section is where your pass through ratings apply. Ask the maker what the ratings are for the model you select.

When I used to go RV'ing many large parks had many multiple pedestals on one decent sized feeder, fused back at the office service.

 

[Necnerd]

Would need additional overcurrent device wherever you reduce conductor to less than 200 amps to comply with feeder tap rules. If longer run of conductor possibly ok, shorter run likely still overall less cost to just feed through with 200 amp conductor especially if using aluminum conductor. Copper maybe not.

That was my thought just feed everything thorough using 250 aluminum. If they decide to add a site in the future I can jump out of the pedestal instead of running another feeder… I looked through both catalogs and eveywhwre I could online I have only found Midwest to have a single site 200amp rated pedestal.