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04-02-2016, 09:02 PM
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#1
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Senior Member
Join Date: Mar 2005
Location: Northern Oklahoma
Posts: 5,062
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50 Amp service, L1 & L2 amp draw
When I'm plugged into 50A service at the post, what amperage do I have available on each of the legs? Do I have 50A on L1 and 50A on L2, or do I only have 50A in total on both lines combined? Thought I knew how 50A service worked but now I'm doubting myself. The other day I noticed on my Energy Management Panel that I had 33 amps on L1 and 13 amps on L2 for a total of 46 amps draw. Couldn't decide if I was almost to my limit or it I still had lots of amps yet to draw on.
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04-02-2016, 09:09 PM
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#2
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Senior Member
Entegra Owners Club
Join Date: Nov 2012
Posts: 8,137
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You have 50A on each leg, or 100A total.
__________________
Marc and Jill, Wellington FL
2013 Entegra Anthem 44SL
2018 Lincoln MKX
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04-03-2016, 08:21 AM
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#3
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Registered User
Join Date: Aug 2014
Location: western NC mountains!
Posts: 4,106
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you have 'up to' 100amps total, but knowing what draws(items, outlets, etc) are on each leg is another story.
I'm still not sure on ours. Without a schematic breakout, it's a shot in the dark to know what's on which leg, but I guess I could shut off all breakers, keeping only one on at a time, find what items/outlets work for that breaker, etc., though I'm still not sure if that would be more confusing than it's worth... : /
Class A diesel pusher
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04-03-2016, 10:58 AM
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#4
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Senior Member
Winnebago Owners Club
Join Date: Apr 2003
Location: Skiatook, OK
Posts: 2,550
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wagonmaster2, do you have a updated Energy Management Panel that lets you read L1 and L2 Current? O4 Meridian wiring shows only one sensing coil.
__________________
Grant & Pat
2014 Adventurer 35P
2021 Ford Bronco OBX
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04-03-2016, 11:15 AM
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#5
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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 MisterT
you have 'up to' 100amps total, but knowing what draws(items, outlets, etc) are on each leg is another story.
I'm still not sure on ours. Without a schematic breakout, it's a shot in the dark to know what's on which leg, but I guess I could shut off all breakers, keeping only one on at a time, find what items/outlets work for that breaker, etc., though I'm still not sure if that would be more confusing than it's worth... : /
Class A diesel pusher
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Breakers alternate legs in the panel. So you can tell which ones are on the same leg by the breaker position. And it's actual breaker position, in case you have those two-in-one breakers. Both of those are on the same leg, since it's actually one breaker body.
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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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04-03-2016, 11:23 AM
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#6
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Registered User
Monaco Owners Club
Join Date: Oct 2009
Location: Varies Depending on The Weather
Posts: 8,517
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To put it into proper perspective, each Leg has 50 amps of power available.
L-1 has 50 amps or 120 VAC X 50 AMPS = 6000 Watts of power to use on that leg.
L-2 has 50 amps or 120 VAC X 50 AMPS = 6000 Watts of power to use on that leg.
You now have a total of 12,000 Watts of power to use between the two halves of your coach. Lots of power!
BUT, when hooked to 30 amp service you will only have 120 VAC X 30 AMPS = 3600 Watts of power to use between the entire coach. That is because there is only one LEG of power for the 30 amp RV service versus two legs for the 50 amp service.
Big difference, Eh!
Dr4Film ----- Richard
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04-03-2016, 08:03 PM
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#7
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Senior Member
Join Date: Mar 2005
Location: Northern Oklahoma
Posts: 5,062
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Quote:
Originally Posted by grtharris
wagonmaster2, do you have a updated Energy Management Panel that lets you read L1 and L2 Current? O4 Meridian wiring shows only one sensing coil.
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I now have a 2015 Dutch Star and have tried a couple of times to change my profile to read correctly but somehow I'm not doing the right stuff (which is no surprise considering what a computer Dummy I am).
Appreciate the information on having 100 amps. Kind of thought this was the situation but when the total of L1 & L2 approached 50 amps I began to second guess myself.
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04-04-2016, 07:58 AM
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#8
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Senior Member
Join Date: Jan 2015
Posts: 114
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Quote:
Originally Posted by wagonmaster2
When I'm plugged into 50A service at the post, what amperage do I have available on each of the legs? Do I have 50A on L1 and 50A on L2, or do I only have 50A in total on both lines combined? Thought I knew how 50A service worked but now I'm doubting myself. The other day I noticed on my Energy Management Panel that I had 33 amps on L1 and 13 amps on L2 for a total of 46 amps draw. Couldn't decide if I was almost to my limit or it I still had lots of amps yet to draw on.
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Are you plugged into an outlet at home or in a campground ? I have found quite a few abysmal outside electrical plants at campgrounds. Everything from high or low voltage to open neutrals to frequency problems, you name it. Especially true in a lot of the older RV parks.
.
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2017 Winnebago Paseo
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04-04-2016, 05:36 PM
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#9
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Community Administrator
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Sep 2010
Location: Marquette, Michigan "Da UP" & Lehigh Acres Florida
Posts: 21,827
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Quote:
Originally Posted by wagonmaster2
I now have a 2015 Dutch Star and have tried a couple of times to change my profile to read correctly but somehow I'm not doing the right stuff (which is no surprise considering what a computer Dummy I am).
Appreciate the information on having 100 amps. Kind of thought this was the situation but when the total of L1 & L2 approached 50 amps I began to second guess myself.
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Your information has been changed for you except model and length which was left blank. Did you click save or submit at the bottom of the page when you attempted it?
__________________
John & Cathy R.
06 Pace Arrow 38L Workhorse W24
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04-04-2016, 08:55 PM
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#10
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Senior Member
Join Date: Mar 2005
Location: Northern Oklahoma
Posts: 5,062
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Quote:
Originally Posted by JohnRR
Your information has been changed for you except model and length which was left blank. Did you click save or submit at the bottom of the page when you attempted it?
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Yes, I have always clicked Save but when i went back to survey my changes the old information was still in place. Thanks for the assist.
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