How big of a fuse do ya think?
#1
How big of a fuse do ya think?
I am just in the process of upgrading my system to about 1500 watts rms / 3000 watts max. I have upgraded the "big 3" and my alternator produces about 180 amps. Two questions:
1. What amperage fuse is sufficient/ideal to use from the battery? Is there a way to calculate?
2. Is it best the fuse each amp after the power distribution block? for example, one amp I have is rated:
Current consumption = 31.0 amps at continous power, 4ohms and
Average current drawn = 7.3 amps at 2ohms.
What sized line fuse would I intall for this amp?
Thanks again for any suggestions & help!!! (I guess it's actally 4 questions)
1. What amperage fuse is sufficient/ideal to use from the battery? Is there a way to calculate?
2. Is it best the fuse each amp after the power distribution block? for example, one amp I have is rated:
Current consumption = 31.0 amps at continous power, 4ohms and
Average current drawn = 7.3 amps at 2ohms.
What sized line fuse would I intall for this amp?
Thanks again for any suggestions & help!!! (I guess it's actally 4 questions)
Last edited by peemoeller; 03-28-2006 at 08:58 PM.
#3
Originally Posted by RedZone
your fuse you use on your power wire should be based on how much power the wire you are useing can handle . not how much power you are useing.
After the dist block I have 4 gauge wires running to each of the 3 amps ~ How big a fuse for each of these amps?
Thanks
#7
Thanks again Weston, Pioneer Guy & others for the suggestions. So just to clarify Pioneer Guy's statement ~ do I combine which of the 2 below specs?
Current consumption = 31.0 amps at continous power, 4ohms and
Average current drawn = 7.3 amps at 2ohms.
I am thinking for 3 amps (assuming all identical) add 31.0 + 31.0 + 31.0 = 93.0.
So I should install a 40amp fuse in each 4 gauge line then a 120amp fuse from the battery? Does this seem right?
Thanks.
Xiphoid, I don't understand what you want me to explain about using a fuse.
Current consumption = 31.0 amps at continous power, 4ohms and
Average current drawn = 7.3 amps at 2ohms.
I am thinking for 3 amps (assuming all identical) add 31.0 + 31.0 + 31.0 = 93.0.
So I should install a 40amp fuse in each 4 gauge line then a 120amp fuse from the battery? Does this seem right?
Thanks.
Xiphoid, I don't understand what you want me to explain about using a fuse.
#9
Originally Posted by Pioneer Guy
The rule of thumb is to add the fuse values of all your amplifiers together for the value of your main power line fuse.
Mark