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07-09-2013, 10:55 AM
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#1
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Senior Member
Join Date: Aug 2012
Location: Itasca, Illinois
Posts: 199
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50 to 30amps
Hi,
The campground we are going this weekend only has 30 amp service. I have 50 amp on my Mh. My question is can I connect surge protector with 30 amp adapter. Also will there be an issue to use one AC. I am not going to need 2nd AC due to weather. Thanks
__________________
2015 Ace 30.2
1981 Hondamatic
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07-09-2013, 11:02 AM
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#2
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Senior Member
Newmar Owners Club
Join Date: May 2007
Location: Somewhere....
Posts: 4,054
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Yes, you can connect to the surge protector, then with an adapter to the 30amp socket.
One AC should be fine on 30amp. You'll probably want to turn off the AC if you need to use anything that takes a lot of power, like a microwave. Or some hair dryers.
__________________
2008 King Aire 4562, Spartan K3(GT) w/ Cummins ISX 600
2014 Jeep Grand Cherokee Overland 5.7L V8 Hemi w/ Blue Ox Aventa LX Tow Bar and baseplate, SMI Air Force One brake
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07-09-2013, 03:16 PM
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#3
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Member
Join Date: May 2009
Posts: 38
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Quote:
Originally Posted by Mahakal
Hi,
30 amp adapter. Also will there be an issue to use one AC. I am not going to need 2nd AC due to weather. Thanks
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Issue is with 30 amps, and having two a/c's, just converted to 50 amp so that we can use both a/c's. Original owners manual warns of using too much electric, first thing to turn off is water heater, and most other things if you are getting below 105 volts on your meter.
You are not just going down 20 amps, but 70 amps as the 50 amps is at 240 volts and the 30 amps is at 120v.
Still better than a tent
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07-09-2013, 03:22 PM
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#4
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Member
Join Date: May 2009
Posts: 38
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post above
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07-09-2013, 03:43 PM
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#5
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Senior Member
Winnebago Owners Club
Join Date: Jun 2011
Location: Amite, La.
Posts: 289
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You can use 1 A/C and a microwave and electronics on 30 amp.
Sometimes they have a 20 amp plug in also on the shore power , I made a 30 amp wishbone with a 20 amp plug tied in to make 50 amps.
Good luck,
James
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07-09-2013, 04:06 PM
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#6
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Senior Member
Join Date: Aug 2012
Location: Itasca, Illinois
Posts: 199
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Thanks guys for the response. Appreciate it
__________________
2015 Ace 30.2
1981 Hondamatic
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07-09-2013, 04:27 PM
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#7
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Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
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Quote:
Originally Posted by Jimooo
You can use 1 A/C and a microwave and electronics on 30 amp.
Sometimes they have a 20 amp plug in also on the shore power , I made a 30 amp wishbone with a 20 amp plug tied in to make 50 amps.
Good luck,
James
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The problem with those, and with "Cheater boxes" (Which feed to 20 amp to one leg and 30 to the other) is most parks these days have GFCI outlets on the 20 amp, I've seen a few that have 'em on the 30's as well. and .. .Well, those cords and boxes are "GFCI testers. guaranteed to make 'em go click.
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Home is where I park it!
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07-09-2013, 05:27 PM
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#8
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Senior Member
Winnebago Owners Club
Join Date: Jun 2011
Location: Amite, La.
Posts: 289
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I know how to get around the GFI circuits .
Safe travels,
James
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07-09-2013, 06:04 PM
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#9
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Senior Member
Thor Owners Club Workhorse Chassis Owner
Join Date: Sep 2011
Location: Halifax, Nova Scotia, Canada
Posts: 871
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Quote:
Originally Posted by FlyingDiver
Yes, you can connect to the surge protector, then with an adapter to the 30amp socket.
One AC should be fine on 30amp. You'll probably want to turn off the AC if you need to use anything that takes a lot of power, like a microwave. Or some hair dryers.
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X100. Also find out where the breaker for you site is if it's not already located on the pedestal, not all are. Check the breaker to make sure it actually works, in that when it's shut off it actually shuts off the power to the site, more of a problem if it's not already located on the pedestal. Ask me how I know.
You will need to be very power conscious, I do not recommend you run any large appliance as noted in the quote above which also includes a coffee maker or your water heater if you have it set to electric, while you have the AC on. Just be aware of what you have running. It's a lot different that a 50Amp service, your not losing just 20 Amps your actually losing 70 Amps. Huge difference.
AC and Microwave, etc not good.
AC and Fridge, TV/ Entertainment center and such good.
Bottom line if you don't need it on shut it off.
Hope this helps,
Stewart
__________________
Stewart & Kim. 2011 Serrano 31V, MaxForce 7 w/ Allison 6 Sp. Fiat 500 Sport Diesel Pusher.
Surge Guard 3450, TST 510, Sliverleaf VMSpc, RVND 7710. Blue Ox Tow. 2010 Arctic Cat 700 TRV.
Someday your life may flash before your eyes. Make sure it's worth watching.
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07-09-2013, 06:10 PM
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#10
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Senior Member
Thor Owners Club Workhorse Chassis Owner
Join Date: Sep 2011
Location: Halifax, Nova Scotia, Canada
Posts: 871
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Quote:
Originally Posted by DaveFL
Issue is with 30 amps, and having two a/c's, just converted to 50 amp so that we can use both a/c's. Original owners manual warns of using too much electric, first thing to turn off is water heater, and most other things if you are getting below 105 volts on your meter.
You are not just going down 20 amps, but 70 amps as the 50 amps is at 240 volts and the 30 amps is at 120v.
Still better than a tent
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Sorry Dave, just one small correction to you post if I may. It's 50 Amps per leg at 120 volts each. They never combine to add up to 240. In fact if you plug your coach into a 240 plug, say a drier plug, you will quickly let the smoke out of the box. Nothing works after that.
__________________
Stewart & Kim. 2011 Serrano 31V, MaxForce 7 w/ Allison 6 Sp. Fiat 500 Sport Diesel Pusher.
Surge Guard 3450, TST 510, Sliverleaf VMSpc, RVND 7710. Blue Ox Tow. 2010 Arctic Cat 700 TRV.
Someday your life may flash before your eyes. Make sure it's worth watching.
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07-09-2013, 06:14 PM
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#11
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Senior Member
Ford Super Duty Owner
Join Date: Jul 2011
Posts: 283
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Quote:
Originally Posted by Jimooo
I know how to get around the GFI circuits .
Safe travels,
James
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How do you do that ? do share
__________________
2021 Grand Design 380FL-R
2022 F350 Lariat dually with 6.7 Turbo
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07-09-2013, 06:36 PM
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#12
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Senior Member
Newmar Owners Club
Join Date: May 2007
Location: Somewhere....
Posts: 4,054
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Quote:
Originally Posted by IMDSailor
Sorry Dave, just one small correction to you post if I may. It's 50 Amps per leg at 120 volts each. They never combine to add up to 240. In fact if you plug your coach into a 240 plug, say a drier plug, you will quickly let the smoke out of the box. Nothing works after that.
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Not true at all. The 50amp RV outlet is true 240V. With ground and neutral, just like a 4 wire dryer outlet (except those are usually 30amp per leg). If it wasn't designed for true 240V, then the neutral would have to be double sized, which it is not.
30amp RV outlets LOOK like 240V 3-pin dryer (or more commonly, 240V welder) outlets, but they are not the same.
Your coach may not have any appliances that use 240V, but mine does.
joe
__________________
2008 King Aire 4562, Spartan K3(GT) w/ Cummins ISX 600
2014 Jeep Grand Cherokee Overland 5.7L V8 Hemi w/ Blue Ox Aventa LX Tow Bar and baseplate, SMI Air Force One brake
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07-09-2013, 06:52 PM
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#13
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Senior Member
Thor Owners Club Workhorse Chassis Owner
Join Date: Sep 2011
Location: Halifax, Nova Scotia, Canada
Posts: 871
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Quote:
Originally Posted by FlyingDiver
Not true at all. The 50amp RV outlet is true 240V. With ground and neutral, just like a 4 wire dryer outlet (except those are usually 30amp per leg). If it wasn't designed for true 240V, then the neutral would have to be double sized, which it is not.
30amp RV outlets LOOK like 240V 3-pin dryer (or more commonly, 240V welder) outlets, but they are not the same.
Your coach may not have any appliances that use 240V, but mine does.
joe
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I can't argue the point because I would rapidly run out of ammunition. My knowledge about electricity is a mile wide but an inch deep. I was trying to relay what I was lead to understand. I have been wrong before, and I suspect I will be again. Just as a point of curiosity what do you have in your coach that runs on 240?
__________________
Stewart & Kim. 2011 Serrano 31V, MaxForce 7 w/ Allison 6 Sp. Fiat 500 Sport Diesel Pusher.
Surge Guard 3450, TST 510, Sliverleaf VMSpc, RVND 7710. Blue Ox Tow. 2010 Arctic Cat 700 TRV.
Someday your life may flash before your eyes. Make sure it's worth watching.
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07-09-2013, 06:54 PM
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#14
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Senior Member
Newmar Owners Club
Join Date: May 2007
Location: Somewhere....
Posts: 4,054
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Quote:
Originally Posted by IMDSailor
I can't argue the point because I would rapidly run out of ammunition. My knowledge about electricity is a mile wide but an inch deep. I was trying to relay what I was lead to understand. I have been wrong before, and I suspect I will be again. Just as a point of curiosity what do you have in your coach that runs on 240?
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A residential dryer. Stackable Maytag unit. And we're thinking about installing a 240V induction cooktop as well.
__________________
2008 King Aire 4562, Spartan K3(GT) w/ Cummins ISX 600
2014 Jeep Grand Cherokee Overland 5.7L V8 Hemi w/ Blue Ox Aventa LX Tow Bar and baseplate, SMI Air Force One brake
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