450' electrical line run


Old 11-29-18, 04:27 PM
Thread Starter
Join Date: Mar 2010
Location: USA
Posts: 5
Received 0 Votes on 0 Posts
450' electrical line run

I want to supply 50 amps to my motorhome which is 450' from 150 amp service service panel. What size wire do I need to accomplish this?
Sponsored Links
Old 11-29-18, 04:48 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 54,219
Received 477 Votes on 447 Posts
If you'll want to be running both A/C units you will need considerably larger sized wiring.
Are you looking for direct burial or are you running conduit ?

To stay under a 3% voltage drop you will need at least #1 copper or 2/0 aluminum.

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

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: