SailNet Community - Reply to Topic

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems > Different size Breakers
 Not a Member? 


Thread: Different size Breakers Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
09-30-2012 03:49 PM
asdf38
Re: Different size Breakers

Guys there are no problems here so long as the wiring is matched to the breaker for it. Even if the shore wiring is only rated for 20A it's protected by the 20A breaker. So it's safe no mater what your main breaker is. Just don't draw more than 20A unless you want to pop it.

And a 30A shore breaker with 30A wiring could also be plugged into a 20A main breaker without any problems. Just like in your house you have the 100 or 200A main breaker feeding a bunch of 15's and 20's...That's the point of breakers, to protect their branch from potentially higher current available on the bus.
09-29-2012 07:37 PM
pmoney
breaker

Not a problem. The shore power will only allow a 20amp overload. Since you have a 30amp main theshore power breaker will trip first and your 30amp main can withstand any overload. If it were reversed the would be a problem. 30amp shore with 20amp main....bad
09-29-2012 05:54 AM
tap
Re: Different size Breakers

Not a problem if your shore power cord is rated for 30 Amps. Normal shore power cords are. A household extension cable, even an "outdoor" one, is just 15 or 20 amp.
09-28-2012 11:55 PM
Froggy
Different size Breakers

Shore side power Breaker 20 amp, Boat main panel 30 amp. Problem?
Should I downsize Boat panel to 20 amp also? Thanks.

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


All times are GMT -4. The time now is 04:16 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.