Reply
 
Thread Tools Display Modes
Old 04-23-2016, 10:25 PM   #1
Senior Member
 
Join Date: Apr 2015
Posts: 147
50amp Toy Hauler to a portable generator?

My generator has 3 different outlets.

#1 is a 4 pin 30amp / 240v

#2 is the usual 20amp / 120v

#3 is also the usual 20amp / 120v

The toy hauler is a 2016 Puma Unleashed 351THSS 50amp service with a pair of Champion 15k A/C units up top.

I understand that the trailer is a 120v system that simply has a pair of 120s going in and then splitting off.

I'm trying to find a adaptor to go from the generator to the 50amp RV cord and be able to run both A/C units.

Is there a such thing?

ps-it's a RIGID 7125 / 5700 generator powered by a Yamaha 300.
Attached Thumbnails
Click image for larger version

Name:	gen 1.JPG
Views:	98
Size:	108.5 KB
ID:	105890   Click image for larger version

Name:	gen 2.JPG
Views:	111
Size:	113.7 KB
ID:	105891  
__________________

__________________
gilwilliams101 is offline   Reply With Quote
Old 04-23-2016, 10:46 PM   #2
Senior Member
 
B and B's Avatar
 
Join Date: Jun 2013
Location: Wilmot Twp, Ontario, Canada
Posts: 8,604
50amp Toy Hauler to a portable generator?

Use number 1. He gfci on the two 120 volt will cause issues. You Need a custom cable 4 pin twist lock to a 50 amp receptacle. An electrician needs to confirm your generator has a neutral on the 240 receptacle first.
__________________

__________________
B and B is online now   Reply With Quote
Old 04-23-2016, 10:51 PM   #3
Senior Member
 
Join Date: Apr 2015
Posts: 147
Quote:
Originally Posted by B and B View Post
Use number 1. You Need a custom cable 4 pin twist lock to a 50 amp receptacle. An electrician needs to confirm your generator has a neutral on the 240 receptacle first.
Can I remove the panel and be sure there is a white wire attached at bottom leg of the 30amp / 240v outlet to ensure that is a 'wired' neutral? I've read enough to figure out that the volt meter needs to read 240v between left and right leg, 120v between left and bottom and left and top leg and also 120v between right leg and bottom and top leg.


If I understand it right, when all said and done I need 120 on left, 120 on right, neutral on bottom and ground on top?
__________________
gilwilliams101 is offline   Reply With Quote
Old 04-24-2016, 04:55 AM   #4
Senior Member
 
Join Date: May 2014
Posts: 171
Would this work? http://www.amazon.com/Conntek-Genera.../dp/B003PY5BVG
__________________
2015 Sunseeker 3170ds
TakeItEasy is offline   Reply With Quote
Old 04-24-2016, 07:28 AM   #5
Senior Member
 
Join Date: Feb 2016
Posts: 318
Proceed with caution! There is more to it than just the right plug. Your gen was not designed to push 40-50 amps thru one receptacle. The original wiring and the breakers may not be able to handle the load. You also have to be sure of the neutrals and phasing with adapters. If it were me I would look at removing the twist lock and replacing it with the proper 50 amp plug or a 30 amp and limit use to one AC unit.
__________________
2016 Wildwood 32BHDS
2004 F-250 CC 4X4 V10
Mars is offline   Reply With Quote
Old 04-24-2016, 07:47 AM   #6
Senior Member
 
Join Date: Jul 2010
Location: Waynesville
Posts: 12,038
IF it is Rewired/Repluged to accept the 50A RV plug I would doubt that it has the Output for 2 AC's and I Know it will be LOUD! Youroo!!
__________________
youroo is offline   Reply With Quote
Old 04-24-2016, 08:36 AM   #7
Senior Member
 
B and B's Avatar
 
Join Date: Jun 2013
Location: Wilmot Twp, Ontario, Canada
Posts: 8,604
Replacing and rewriting the generator is harder than making an adapter. You can use a voltmeter to check for neutral if so inclined. The rating says 25 amps at 240. That should be enough for 2 AC's but no hot water heater.
__________________
B and B is online now   Reply With Quote
Old 04-24-2016, 09:26 AM   #8
Senior Member
 
Join Date: Feb 2012
Posts: 1,101
You need to do the math on the output power. The 30 amps out is the peak not running. 30 X 240 = 7200 watts. 5700/240 = 23.75 amps. Split that between two legs and you only have 11.9amps. So you will have a hard time running two AC's with that generator. And as was said bring your ear plugs because that generator will be loud.
__________________
Ontario

Vibe 6501
1 Prospector Canoe
2 Mtn. Bikes
4 Hiking Boots
Happy Vibe is offline   Reply With Quote
Old 04-24-2016, 06:50 PM   #9
larryandamy
 
Join Date: Apr 2016
Location: Escondido, CA
Posts: 98
50 amp female to 30 amp male adapter

You can buy these adapters for $20 on Amazon
See attached screen shot.
But you have a potential of a 50 amp load with a 5700W generator which is max running current of 23.75 amps at 240VAC.
You don't split the current between two legs. It doesn't work that way.
It is max of 23.75 amps on each leg of the 240VAC (L1 and L2) from your generator.
And you don't have to worry about the wire and breakers on your trailer as your generator cannot supply more that 23.75 amps and your trailer is wired for 50 amps.
There is also no phasing to worry about either as this is single phase and if you buy a pre-made adapter they are all wired to industry standard pin assignments.
115VAC can be taken between L1 and Neutral (Common) or L2 and neutral but usually always taken from just L1 and neutral in the trailer wiring.
The 4 terminals on each connector are:
L1, L2, Neutral and Ground.
You have:
- 240VAC between L1 and L2.
- 115VAC between L1 and Neutral
- 115VAC between L2 and Neutral
You do not need an electrician to check if there is a Neutral.
There has to be a Neutral and a Ground... That is code.
Ground is same electrical connection as Neutral, but is used for safety current path to ground.

I am sure that your AC units are 240VAC (not 115VAC) and both of them running could draw over 23.75 amps on L1 and L2 only. It would be close and it would be loud... meaning generators get louder the more they are loaded.
If you tried to run anything else on 115VAC at the same time the currents are additive on the L1 leg and if you exceed 23.75 amps on L1, then your generator will just overload and trip the breaker. No risk to wiring or connectors/breakers on your trailer, because they can handler more current then your generator can deliver.
Attached Thumbnails
Click image for larger version

Name:	50 amp female to 30 amp male.jpg
Views:	152
Size:	200.2 KB
ID:	105959  
__________________
larryandamy is offline   Reply With Quote
Old 04-24-2016, 08:22 PM   #10
Senior Member
 
Join Date: Feb 2012
Posts: 1,101
You are right about the current, half the voltage full current on each leg my mistake. I have never heard of a 240V AC unit on a trailer ( does not mean they don't exist but normally they are 120V). In a 50 amp trailer the two lines L1 and L2 are wired as two circuits with a common neutral. One AC will be wired to L1 and the other to L2. The neutral and ground are not always tide together on a generator.
__________________

__________________
Ontario

Vibe 6501
1 Prospector Canoe
2 Mtn. Bikes
4 Hiking Boots
Happy Vibe is offline   Reply With Quote
Reply

Tags
toy hauler, generator

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 12:23 PM.