Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 22-01-2017, 15:28   #16
Registered User

Join Date: Oct 2009
Location: Redondo Beach, CA
Boat: 1990 Oyster 55
Posts: 287
Re: Shorepower Voltage/Amp Difference Question

Quote:
Originally Posted by Scott Berg View Post
Remember that the wire is sized for the amps, not the volts, so a 120v 50amp cable could handle 240 (or 480) as well.

Most US Marinas have 50a 125/250v four wire circuits:

Green = Ground
Black = Line 1
Red = Line 2
White = Neutral (Grounded)
All voltages are max ratings, actual will be 117 and 238 or so

125 volts Black to White
125 volts Red to White
250 volts Red to Black

the Green (grounding) wire will be connected to the White (grounded) wire at the shoreside transformer but NOT on the boat.

In Europe you'll see 16 and 32 amp three wire systems carrying 230 amps... but that's another post!
In many US marinas black to red is 208v as the two lines are 120 degrees out of phase rather than 180 degrees out of phase.

Just something to know about when planning a system.

Sent from my SM-G935V using Cruisers Sailing Forum mobile app
__________________

__________________
botanybay is offline   Reply With Quote
Reply

Tags
enc, repower

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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
Low Shorepower voltage with increased load? sailcrazy Electrical: Batteries, Generators & Solar 22 05-05-2016 05:57
Shorepower Voltage Drops with Load Quixotic Electrical: Batteries, Generators & Solar 14 26-02-2012 14:32
Is there a Device that Switches Off the Shorepower if the Voltage Goes too High ? Fuss Electrical: Batteries, Generators & Solar 7 23-01-2011 07:56
For Sale: 15 Amp Male to 30 Amp Female Shorepower Adapter off-the-grid Classifieds Archive 0 12-08-2010 15:59



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:23.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.