Thanks: 
HaHa: 
Reply With QuoteThe bigger fuse will work as in get you power but not give protection which is what it is for in the first place. If the unit calls for a 3 amp fuse that is what you need.
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Good day another question i was told that i shouldnt put a 5amp fuse my fishinder because it calls for a 3amp. I always thought that you could go over but not under. Meaning i could use a 5amp for the 3 amp but not a two.
Also i have some Attwood switches that say 20amp, Two of these, plus the amps for my lights and fishinder say it equals 50amps. I am running 10ga wire from my battery to fuse box with a 30amp fuse. Do i need to put a bigger fuse going to the fuse box.
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Crappie Wall Hanger II
The bigger fuse will work as in get you power but not give protection which is what it is for in the first place. If the unit calls for a 3 amp fuse that is what you need.
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Crappie Wall Hanger II
Not sure I follow the second question.
Crappie.com 2K Star General
Ok thanx so, to clarify the second question. Say i have 50amps of equipment running in my fuse box. From my battery to my fuse box i am running a 30amp safety fuse i guess. Do i need a larger safety fuse.
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No electrical expert here but if the 30 has held don't go higher,,,,I wouldn't, 30 amps is a lot of power,,just my take
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Not sure I understand this...the switches are rated for 20 amps not pulling 20 amps...switches are not part of the load. You need to look at the load going through the switches, what do they control. I am used to dealing in AC but not DC so I am not that much help on sizing the wire and breakers. I do have some books somewhere that cover it though.
Crappie Wall Hanger II
You might also try the "mechanics corner". I have seen some electronical geniuses over there.
Crappie Wall Hanger II
I would think each component would need its own dedicated fuse.
Trophy King
Originally Posted by alexava
If I understand the OP correctly he's referring to the single feed from the battery to his fuse panel. And as previously posted he needs to know the load of each component for the fuse that powers that component, total that amperage and size the 'feed' fuse it accordingly.
