Reply
 
Thread Tools Search this Thread
 
Old 30 June 2013, 18:28   #1
Member
 
Gramas's Avatar
 
Country: UK - England
Town: Northumberland
Boat name: Northern Storm
Make: North Diver?
Length: 4m +
Engine: Yamaha 90 Autolube
MMSI: 235096344
Join Date: Aug 2012
Posts: 546
What fuses?

Looking to buy 12way blade fuse box with x2 positive &1 neg terminal.
Basically looking for guidance on what size fuses I'd need for a garmin 550gps , VHF, nav lights, work/deck light & basic compass?
__________________

__________________
Gramas is offline   Reply With Quote
Old 30 June 2013, 18:42   #2
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,645
RIBase
Depends on the draw of the units. I'd go 5a on the GPS, wire the compass to the nav lights and use a 10a,use a 10a on VHF and 25a if you're using a 55w searchlight or floodlight.

I know what I've said isn't exact and they're a bit higher rating than needed. However, it's enough you won't have a wiring fire unless your wiring is hair thin and if you're blowing fuses anyway, the unit is already not working.
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is offline   Reply With Quote
Old 30 June 2013, 18:51   #3
Member
 
Gramas's Avatar
 
Country: UK - England
Town: Northumberland
Boat name: Northern Storm
Make: North Diver?
Length: 4m +
Engine: Yamaha 90 Autolube
MMSI: 235096344
Join Date: Aug 2012
Posts: 546
Cool cheers for swift reply, just want to make good neat/safe job, doing the rib up, old wiring was shocking, no doubt there will be more advice posts soon as I progress haha
__________________
Gramas is offline   Reply With Quote
Old 02 July 2013, 02:15   #4
Member
 
Join Date: Jan 2013
Posts: 195
Just as important is to match the size of the wire to the size of the fuse.

It is essential that the wire is able to carry more current than the fuse.

Always use tinned wire. Always use crimped connectors. Use heat shrink wth adhesive built in.
__________________
j.i.wilson is offline   Reply With Quote
Old 03 July 2013, 05:53   #5
Member
 
Country: UK - Wales
Town: Here
Boat name: doggypaddle
Make: Avon 5.4 Searider
Length: 5m +
Engine: yamaha 80
Join Date: Jul 2007
Posts: 1,107
The fuses are only to potect the wiring. size the fuses no more than the wire capacity. The radio GPS etc will have their own internal fuses to protect them, so if theyre the only items on a circuit you can size the main fuses the same or slightly larger, even if they the same size, for example 2 amp in the GPS, and 2 amp in the fuse box, If there is a GPS fault the fuse in the GPS will go first as it will be a faster fuse. The automotive type blades are fairly slow blow and will carry double thiir rated current for a short time before they blow.
__________________
I am usually not as green as i am cabbage looking.
doggypaddle is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 03:45.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.