Amp fuse ratings v max.current draw.


New member
Username: Tambk1

Post Number: 4
Registered: Apr-05
A quick amplifier mentions in the user manual that the maximum current draw is 75 amps but the amp has 2 30 amp fuses on board? Why 2 30 amp (60 amp total) when the actual manual mentions max.current draw 75 amps?
I know that test tones draw far more current than music but a little confused here.

Please could someone shed some light on this for me.

Gold Member
Username: Glasswolf

NorthWest, Michigan USA

Post Number: 7651
Registered: Dec-03
fuses don't instantly blow when they go over the rated current.
they blow at a specified amount of time per the percentage over the rated current. has a section explaining fuse ratings.

short answer is your amp probably won't be drawing 75A or if it does, it won't be for more than brief periods so 60A is plenty of current to allow normal operation.
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