Finding the Right Fuse Dimensions - SailNet Community

   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
 Not a Member? 
  #1  
Old 06-15-2011
liveincolor's Avatar
Member
 
Join Date: Mar 2011
Location: South Shore, Long Island
Posts: 57
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
liveincolor is on a distinguished road
Finding the Right Fuse Dimensions

I have a Hurley 20' (1970). The other day I connected a fully charged battery in an attempt to use my depth gauge and lights, but nothing worked. I discovered nothing worked because there were no fuses installed (the glass tube kind) in the fuse box.

My question is this:
How do I find the fuse with the correct dimensions (diameter and length) for my specific setup? I know that each fuse should be 15A, but there is a wide variety of sizes varying in diameter and length that come in 15A. I discovered one size that fits snug (diameter wise) inside the screw cap that contains the fuse, however, when I screw the fuse into the receptacle it is just a hair to long and doesn't allow me to screw the cap all the way in so that it is flush with the fuse box.
Reply With Quote Share with Facebook
  #2  
Old 06-15-2011
tommays's Avatar
Senior Member
 
Join Date: Sep 2008
Posts: 4,234
Thanks: 1
Thanked 24 Times in 24 Posts
Rep Power: 6
tommays will become famous soon enough
I will guess its and AG fuse which has common lenths of 7/8" / 1" / 1-1/4"
__________________
1970 Cal 29 Sea Fever

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1981 J24 Tangent 2930
Tommays
Northport NY


If a dirty bottom slows you down what do you think it does to your boat
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #3  
Old 06-15-2011
liveincolor's Avatar
Member
 
Join Date: Mar 2011
Location: South Shore, Long Island
Posts: 57
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
liveincolor is on a distinguished road
Thanks for your response. For my own experience and learning, what makes you guess that I need an AG fuse? What are the characteristics of an AG fuse that differentiate it from other glass fuses?
Reply With Quote Share with Facebook
  #4  
Old 06-15-2011
Large Member
 
Join Date: May 2007
Location: Texas
Posts: 1,000
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
mdbee is on a distinguished road
Common fuse (AG)

Why not take the fuse that's too long to the auto parts shop and find one a bit shorter? Note the lengths the previous poster gave. What is the wrong fuse's length?

Quote:
Originally Posted by liveincolor View Post
Thanks for your response. For my own experience and learning, what makes you guess that I need an AG fuse? What are the characteristics of an AG fuse that differentiate it from other glass fuses?
Reply With Quote Share with Facebook
  #5  
Old 06-15-2011
liveincolor's Avatar
Member
 
Join Date: Mar 2011
Location: South Shore, Long Island
Posts: 57
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
liveincolor is on a distinguished road
That's what I intend to do. I'm not positive of the length of the fuse as I do not have them on me now, but I will know later today when I stop off at the boat. I guess my real question/concern is, can I potentially damage or break anything by using the wrong fuse (as far as dimensions go, amperage is correct) when I connect the battery to test? The fuse I have in there now is so close to the right size, but I'm a little concerned with how snug it fits...I'm pretty confident I'm not forcing the fuse into place, but since I have no experience with these glass fuses I don't want to assume anything. I can't imagine it should be a looser fit, but like I said...I have no idea.
Reply With Quote Share with Facebook
  #6  
Old 06-15-2011
tommays's Avatar
Senior Member
 
Join Date: Sep 2008
Posts: 4,234
Thanks: 1
Thanked 24 Times in 24 Posts
Rep Power: 6
tommays will become famous soon enough
AG stands for Auto Glass and while there are endless possible fuses IF the panel was American in origin it would be the most common thing used

If the fuse fits tight and makes good connection in its socket you do need to look at the wire size used as 15 amp WOULD PROTECT 14 GAUGE WIRE and you never know what some crazy PO installed as i have to assume there is some kind of issues IF there are no fuses in the panel
__________________
1970 Cal 29 Sea Fever

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1981 J24 Tangent 2930
Tommays
Northport NY


If a dirty bottom slows you down what do you think it does to your boat
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #7  
Old 06-16-2011
Stu Jackson's Avatar
Senior Member
 
Join Date: Jul 2001
Posts: 788
Thanks: 0
Thanked 9 Times in 8 Posts
Rep Power: 14
Stu Jackson is on a distinguished road
These fuse holders are spring loaded. They do, therefore, require some "effort" to push them in and hold them in place when you then turn the holder.
__________________
Stu Jackson, C34, 1986, M25 engine, Rocna 10 (22#)
Reply With Quote Share with Facebook
  #8  
Old 06-16-2011
hellosailor's Avatar
Plausible Deniability
 
Join Date: Apr 2006
Posts: 10,546
Thanks: 2
Thanked 82 Times in 80 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
http://www.littelfuse.com/data/en/Da...ermarket-8.pdf

A nice one-page description and explanation from one of the better makers. Note that the LENGTH also depends on the AM RATING in a roper installation.

There are other variations like "fast blow" "slow blow" "instrumentation" but for boat lights and similar uses, plain AG is fine and all the others will arguably work just as well, as long as you get the rating right.

Any auto parts store should sell an "assorted" box, half useless, the others more or less right, maybe $5 for ten fuses. Put a little silicone grease over the ends of the fuse to prevent them from corroding and bonding to their contacts. Sparingly.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Best way to fuse Battery Tree Electrical Systems 64 02-04-2011 10:12 PM
Fuse size for fuse panel? SanDiegoChip Electrical Systems 34 10-31-2010 12:22 AM
AGC fuse ratings brak Gear & Maintenance 7 04-16-2009 08:44 AM
how big should the fuse be ? Roberthussey Electrical Systems 5 04-09-2009 04:01 PM
Something that looks like a fuse wernervdw Gear & Maintenance 13 03-19-2003 12:05 PM


All times are GMT -4. The time now is 02:29 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.