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Old 07-09-2010, 10:49 PM   #1
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50 AMP Service at Home Base

I recently purchased a 2000 Winnebago Adventurer 34V, and since I'm a little short on electrical smarts, I contracted a local licensed electrician to install a 50 Amp Service connection at my residence. I told him I definately didn't want 220 going to the RV, but I did want 120/50amp. The installation was neatly done and inside the RV 120 was what I got. After he left I noted the power management indicated 30 Amps with a digital readout of my power demands. I thought nothing of it until my first trip and connection to a 50 Amp service at one of our favorite KOA's. My power center indicated 50 Amps, but no load demands, I was told this was normal and correct for 50 Amp service.
I'm thinking my electrician wasn't to up on RV connections, and short changed me on needed service. Is there somewhere that I can get a schematic on making the proper connections in my recepticle in the newly installed circuit breaker panel. I'd like to have something in hand before I call this guy back.

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Old 07-09-2010, 11:13 PM   #2
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Old 07-10-2010, 04:23 AM   #3
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Tell the electrician you want a 120/240 volt 50 amp 4 wire range receptacle circuit.
The coach needs to see the 240 volt to know that you are plugged into a 50 amp circuit and let the EMS allow all loads to be used. Trust me, it will be the right circuit and receptacle.
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Old 07-10-2010, 07:45 AM   #4
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"I told him I definitely didn't want 220 going to the RV, but I did want 120/50amp".
If that is exactly what you said to him then maybe that is exactly what he did for you!!!! Don't count the guy out, call him back up and say there may have been a mistake made ..... on your part!!!!!
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Old 07-10-2010, 08:03 AM   #5
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As Wingman and RV Wizard have already said, a 50 amp RV service is 240 volts. It's no different than the 240 volt circuits in a house, our RV's just use it differently. The RV's use both of the 120 volt circuits separately, in a house most 240 volt appliances combine the two 120 volt circuits for the 240.
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Old 07-10-2010, 08:08 AM   #6
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This website explains it all.
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Old 07-10-2010, 08:08 AM   #7
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For 50 Amp You need a four Wire set up L1 120V, L2 120V, a Neutral and a Ground.

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Old 07-10-2010, 11:27 AM   #8
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Agree with the others - you told the electrician you did not want 220 and that was a mistake. The standard RV 50A service connection is 220v (actually 240v) and your EMS depends on that to determine 50A vs 30A or less.

Because of that, your EMS is actually limiting your total consumption at home to 30A, even though the supply is capable of more.
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Old 07-10-2010, 11:34 AM   #9
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What ever you do do not plug in power cord until its resolved.

Here is a thread you maybe interested in wrong wiring of RV service.
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Old 07-10-2010, 12:16 PM   #10
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What ever you do do not plug in power cord until its resolved.
Roger, his post indicates he already has plugged in to it.

Based on gcipra's post, I suspect the electrician put him in a NEMA 14-50R receptacle with the L1 and L2 tied together and then connected them to a 50 amp breaker probably via #6 AWG wire. Shouldn't do any harm, would function the same as using a 50 to 30 amp adapter on a 30 amp circuit.
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Old 07-10-2010, 07:50 PM   #11
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This is what's so great about this site, thank you everyone for the info. I'm printing out all your responses for him to view. I'm not faulting him, he just gave me what I asked for because the people I bought the MH from said don't have it wired for 220. The unit functions as if it was a 50 to 30 amp adapter now without problems because there is not much demand along side the house. I appreciate that I will be able to show the electrician exactly what I need, he's not the one that was electrically challenged, it was me, and the fear that I was going to smoke everything.
Much appreciated guys.... Ride safe.

gcipra
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Old 07-10-2010, 08:06 PM   #12
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Thanks for pointing that out Richard, we just didn't need another blast of AC THIS WEEKEND although the other one might have luck out as to damage.
Its to bad people don't come here first like I've said for years.
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Old 07-10-2010, 08:24 PM   #13
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I'd like to have something in hand before I call this guy back.

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Old 07-10-2010, 08:54 PM   #14
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We may be getting a "NEW" sponsor that has RV Park Grade electrical equipment coming on-board shortly. This equipment is specifically being made available for home owners. The vendor had so many end user requests for the equipment that they decided to expand their business and make park products available for professional installation at residential properties.

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