What is the purpose of a distribution block?
A Distribution block is an economical and convenient way of distributing an electrical circuit from a single input source, to several devices in the branch circuit. Thus re- ducing the total number of wires in your electrical panel and saving you time and money.
What fuse should I use for car audio?
If your amplifier has an internal fuse, your inline car amp fuse should be a bit larger. For example, use a 25- or 30-amp inline fuse if your amp has an internal 20-amp fuse. If you have two amps with internal fuses, add the amperage ratings together to figure out the right size for your inline fuse.
Where do I install distribution blocks?
Power distribution blocks are only permitted to be installed on the line side of service equipment.