Proper Fuse Amps?
Thread Starter
Drifting
Joined: Sep 2007
Posts: 1,572
Likes: 51
From: Wichita Kansas
Proper Fuse Amps?
I have wired in a relay from a keyed/ignition 12 volt. The relay provides 12 volts through a 60 AMP CB directly off the Batt to a 4 gang fuse box. From that box I'm running:
1. A 10 gage wire back to the tank for the electric fuel pump.
2. A 12 gage wire to the TCI 700r4 lock up.
3. A 12 gage wire to the electric choke.
What AMP Fuse would be needed for the 3 positions. I have nothing in the form of instructions that gives me the needed fuse.
1. A 10 gage wire back to the tank for the electric fuel pump.
2. A 12 gage wire to the TCI 700r4 lock up.
3. A 12 gage wire to the electric choke.
What AMP Fuse would be needed for the 3 positions. I have nothing in the form of instructions that gives me the needed fuse.
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
I have wired in a relay from a keyed/ignition 12 volt. The relay provides 12 volts through a 60 AMP CB directly off the Batt to a 4 gang fuse box. From that box I'm running:
1. A 10 gage wire back to the tank for the electric fuel pump.
2. A 12 gage wire to the TCI 700r4 lock up.
3. A 12 gage wire to the electric choke.
What AMP Fuse would be needed for the 3 positions. I have nothing in the form of instructions that gives me the needed fuse.
1. A 10 gage wire back to the tank for the electric fuel pump.
2. A 12 gage wire to the TCI 700r4 lock up.
3. A 12 gage wire to the electric choke.
What AMP Fuse would be needed for the 3 positions. I have nothing in the form of instructions that gives me the needed fuse.
I would think 10a fuse each is fine for those. Probably about 4-5 amps each.(Load)
Le Mans Master
Joined: Apr 2011
Posts: 6,284
Likes: 1,171
From: Hermosa
A fuse is typically to protect the wire in a circuit not the item being powered.
A 10 gauge wire can handle approx 30 amps.
A 12 gauge wire can take approx 20 amps.
Generally speaking that is, length of run and temperatures encountered can alter those values.
If you want to protect the item being run then you can reduce the value of the fuse below that of the maximum for the wire.
You cannot/should not run an item that will pull continuously more amperage than the wire is rated for.
Check out this chart:
http://assets.bluesea.com/files/reso...on_chartlg.jpg
A 10 gauge wire can handle approx 30 amps.
A 12 gauge wire can take approx 20 amps.
Generally speaking that is, length of run and temperatures encountered can alter those values.
If you want to protect the item being run then you can reduce the value of the fuse below that of the maximum for the wire.
You cannot/should not run an item that will pull continuously more amperage than the wire is rated for.
Check out this chart:
http://assets.bluesea.com/files/reso...on_chartlg.jpg
Last edited by REELAV8R; Aug 16, 2015 at 11:45 PM.
Melting Slicks
Joined: Feb 2006
Posts: 3,105
Likes: 96
From: Sunrise FL
Drifting
Joined: Nov 2004
Posts: 1,631
Likes: 293
2020 C3 of the Year Finalist - Modified
A fuse is typically to protect the wire in a circuit not the item being powered.
A 10 gauge wire can handle approx 30 amps.
A 12 gauge wire can take approx 20 amps.
Generally speaking that is, length of run and temperatures encountered can alter those values.
If you want to protect the item being run then you can reduce the value of the fuse below that of the maximum for the wire.
You cannot/should not run an item that will pull continuously more amperage than the wire is rated for.
Check out this chart:
http://assets.bluesea.com/files/reso...on_chartlg.jpg
A 10 gauge wire can handle approx 30 amps.
A 12 gauge wire can take approx 20 amps.
Generally speaking that is, length of run and temperatures encountered can alter those values.
If you want to protect the item being run then you can reduce the value of the fuse below that of the maximum for the wire.
You cannot/should not run an item that will pull continuously more amperage than the wire is rated for.
Check out this chart:
http://assets.bluesea.com/files/reso...on_chartlg.jpg
Size wire to handle the circuit load (FLA, full load amps) and size the fuse to protect the wire.
Thread Starter
Drifting
Joined: Sep 2007
Posts: 1,572
Likes: 51
From: Wichita Kansas
A fuse is typically to protect the wire in a circuit not the item being powered.
A 10 gauge wire can handle approx 30 amps.
A 12 gauge wire can take approx 20 amps.
Generally speaking that is, length of run and temperatures encountered can alter those values.
If you want to protect the item being run then you can reduce the value of the fuse below that of the maximum for the wire.
You cannot/should not run an item that will pull continuously more amperage than the wire is rated for.
Check out this chart:
http://assets.bluesea.com/files/reso...on_chartlg.jpg
A 10 gauge wire can handle approx 30 amps.
A 12 gauge wire can take approx 20 amps.
Generally speaking that is, length of run and temperatures encountered can alter those values.
If you want to protect the item being run then you can reduce the value of the fuse below that of the maximum for the wire.
You cannot/should not run an item that will pull continuously more amperage than the wire is rated for.
Check out this chart:
http://assets.bluesea.com/files/reso...on_chartlg.jpg
