EPDM Coatings
rvupgradestore.com Composet Products PO Box Zone
Over The Network Custom Yacht Interiors

Author Topic: How to wire an automatic transfer switch  (Read 254 times)

bryangee

  • ---
  • Posts: 10
How to wire an automatic transfer switch
« on: August 04, 2017, 05:36:45 PM »
 IM LOOKING FOR SOME HELP . I HAD A 30 AMP AUTOMATIC TRANSFER SWICTH BUT IT WENT BAD . I AM TRYING TO FIGURE OUT HOW TO HOOK ALL THE WIRES BACK UP TO THE ORIGINAL SET UP BUT FOR THE LIFE OF ME I CANT FIGURE OUT THE WIRING. I HAVE 2 CIRCUITS COMING FROM GENERATOR  A BOX THAT HAS LABELS SAYING FROM GENERATOR, FROM SHORE POWER , AND TO AIR CONDITIONER. I HAVE 2 CIRCUITS THAT GO TO THE MOTORHOME PANEL. SO WHEN I TIE IN THE SHORE POWER CORD WHAT DO I HOOK IT IN TO  ? DOES ANYONE HAVE A DIAGRAM OF HOW TO HOOK UP THE ENTIRE CIRCUIT ?

rockin rockwood

  • ---
  • Posts: 177
Re: How to wire an automatic transfer switch
« Reply #1 on: August 04, 2017, 06:06:03 PM »
I have no idea how to help other than to say from past experience, people who can help are going to ask what type, model equipment you have. And probably even what type RV and model RV you have. Post that and I'm sure answers will start flying in!
Dan
2006 FourWinds Windsport
2007 Harley Davidson Electra Glide Ultra Classic

Old Racer

  • ---
  • Posts: 280
Re: How to wire an automatic transfer switch
« Reply #2 on: August 04, 2017, 06:13:29 PM »
And you might photograph and document what is in place before you take anything apart. If you already have it apart you will likely need a really experienced RV electrician to put it all together again.

The other answer is to find an identical MH, and see how it is wired.

Hope it works out!

malexander

  • ---
  • Posts: 381
Re: How to wire an automatic transfer switch
« Reply #3 on: August 04, 2017, 07:49:38 PM »
AND STOP YELLING... ;D.....just kidd'en
Marshall Alexander
2007 Fleetwood Bounder 38N DP, 2008 GL 1800 Goldwing, 2007 VTX 1300, Cessna 150 & 172, Rans S19 Venterra

Mile High

  • ---
  • Posts: 646
Re: How to wire an automatic transfer switch
« Reply #4 on: August 04, 2017, 09:00:00 PM »
I'm not sure what the air conditioning wire did, but the rest make sense.  It should be pretty easy to pull down a wiring schematic online for the brand and model of your transfer switch.   
Brad and Dory
2013 Winnebago Itasca Meridian 42E (new to us 2016)
2013 Jeep Wrangler Unlimited Sahara
FMCA 457993 / WIT W170238
Denver, CO

Lou Schneider

  • Forum Staff
  • ---
  • *
  • Posts: 7308
Re: How to wire an automatic transfer switch
« Reply #5 on: August 04, 2017, 11:30:32 PM »
If you have a 30 amp shore power cord, one of the wire pairs going into the motorhome feeds the 30 amp breaker panel.  This is where you would connect the shore power cord if you were going to bypass the transfer switch.

The other one is a 20 amp circuit for a rear air conditioner.  Sometimes manufacturers include the wiring even if there isn't a second a/c installed.

Same thing coming from your generator, one set of wires is a 30 amp circuit to feed the main panel, the other is a 20 amp circuit to feed the second air conditioner.

-----------------------------------------------------------------------------------------------------
Transfer Switch wiring:

Generator 30 amp out ------   Generator In   Transfer switch out ----- Main electrical panel

Shore Power -----------------   Shore Power In

-----------------------------------------------------------------------------------------------------
Second A/C wiring:

Generator 20 amp out ------------------------------------------------- Second A/C 20 Amp In
« Last Edit: August 04, 2017, 11:33:58 PM by Lou Schneider »

Gary RV_Wizard

  • Forum Staff
  • ---
  • *
  • Posts: 60357
  • RVer Emeritus
Re: How to wire an automatic transfer switch
« Reply #6 on: August 05, 2017, 07:53:32 AM »
I think Lou has your question pretty well covered.
Gary
--------------
Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL

 

Hosted by Over The Network