How do you decide which fuses to get for your distribution block?

[funandgames 10+ year member]

I plan on using a run of 1/0 gauge to a fused distribution block like thisStinger SPD8623 PRO Series Maxi Fused Power Distribution Blockand then outputtng to two runs of 4 gauge to my amps. I will be running an Arc Audio FD 2200 and an Arc Audio FD 1200.1. Which size fuses will I need?

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[thevic24 5,000+ posts]

For the fuse near the battery, go with the rating of your 1/0

As for each amp, go with the amp's rating.

 

[dipitydoo 10+ year member]

as ^^^

however, the fused distribution block isn't a must, since your amps already have fuses.