I have a pair of LM3886 monoblocks in a single enclosure with a single mains inlet. I know that the mains inlet should really be fused, but how do I work out what is a suitable value?
Each amp has a 120VA toroid & 2x 8300uF filter caps, so the total inrush will be for 2x 120VA toroids & 32,800uF of caps.
I'm guessing that even if I push them to their full power (which I never will) the current draw from the mains will likely be less than 1A but obviously the inrush when I turn them on will be a lot more. Would something like a 1.5A timed fuse be enough? Is there a proper way to calculate what I should use?
Each amp has a 120VA toroid & 2x 8300uF filter caps, so the total inrush will be for 2x 120VA toroids & 32,800uF of caps.
I'm guessing that even if I push them to their full power (which I never will) the current draw from the mains will likely be less than 1A but obviously the inrush when I turn them on will be a lot more. Would something like a 1.5A timed fuse be enough? Is there a proper way to calculate what I should use?