Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 07-09-2011, 11:39 PM   #1
Newbie
 
Join Date: Jul 2011
Posts: 2
Rewards Points: 10
Default

Electrical from my Onan 7000 watt generator


Hello all.

I currently have an Onan 7000 watt RV generator.

Model HGJAE1912
120/240
2 pole, 30 amp circuit breaker

Question 1) I am looking to run a variety of machines off this generator. Three are 120 volt. One is 240 volt.

Coming out of the generator are 4 wires. One green, one white (neutral and ground), two black (hot).

Is it even possible to run both 120 volt AND 240 volt from only 2 black wires? Wouldn't I need more? My understanding is that those 2 wires together would equal 240 volt. So I could run my 240 machine. But perhaps not the three 120 volt machines? If I run this to a panel of some kind, could I make this work?

Question 2) The circuit breaker inside the generator is 30 amp. But the wiring coming out of it is 12 gauge wire. And this is the wiring that came with the generator brand new. I believe 12 gauge is only good for 20 amps max. Why have a 30 amp breaker if they are using 20 amp wire?

Hopefully someone can help me here. I have a certified electrician coming this week but am still curious.

Thanks all!

thespuddy is offline   Reply With Quote
Old 07-10-2011, 12:10 AM   #2
Member
 
Join Date: Sep 2008
Location: SoCal
Posts: 1,794
Rewards Points: 1,000
Default

Electrical from my Onan 7000 watt generator


240v across the two hots (black) - 120v across either hot and nuetral (white) - green is ground. Connect it to a panel for 120v/240v distribution.

__________________
____________
Vince

Last edited by vsheetz; 07-10-2011 at 01:13 AM.
vsheetz is offline   Reply With Quote
Old 07-10-2011, 12:31 AM   #3
Member
 
Join Date: Oct 2010
Location: Cairns Australia
Posts: 2,590
Rewards Points: 2,140
Default

Electrical from my Onan 7000 watt generator


No you cannot get 120v without the white wire.
For the 220v you can use just the two blacks.
But for the 120v you need just one of the blacks for hot,
And the white is neutral.

So the answer to the question-
Can I get 220v and 120v with just two blacks.
Is definately NO.
dmxtothemax is offline   Reply With Quote
Old 07-10-2011, 02:04 AM   #4
Member
 
Join Date: Mar 2009
Posts: 780
Rewards Points: 500
Default

Electrical from my Onan 7000 watt generator


The 12 Gage is allowed for 30 amp panel wiring or fixture wiring, the 20 amp limitation is for NEC inwall wiring. vsheetz answered the rest of your question.
hayewe farm is offline   Reply With Quote
Old 07-10-2011, 11:00 AM   #5
Newbie
 
Join Date: Jul 2011
Posts: 2
Rewards Points: 10
Default

Electrical from my Onan 7000 watt generator


Quote:
Connect it to a panel for 120v/240v distribution.
So I can connect the wires to a panel that will then allow me to use both 120v power and 240v power at the same time? Just want to make sure. Thanks!
thespuddy is offline   Reply With Quote
Old 07-10-2011, 01:28 PM   #6
Member
 
Join Date: Sep 2008
Location: SoCal
Posts: 1,794
Rewards Points: 1,000
Default

Electrical from my Onan 7000 watt generator


Quote:
Originally Posted by thespuddy View Post
So I can connect the wires to a panel that will then allow me to use both 120v power and 240v power at the same time? Just want to make sure. Thanks!
Yes -

__________________
____________
Vince
vsheetz is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Electrical Engineer allowed to do Electrical work? SarahJennifer Electrical 48 09-21-2009 08:15 PM
REVIEW - Powermeter Pro to Visualize Generator Usage deeze Electrical 13 08-29-2009 09:45 PM
Electrical box replace,addiitions, city permits and looking for an electrician ramchy Electrical 3 08-02-2009 11:12 AM
How can I see the watt draw from a generator? deeze Electrical 20 07-13-2009 05:29 PM
Generator as sole power source NGuy Electrical 29 12-20-2008 12:29 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.