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Reply With Quotetake the wattage of your opus ... divide by 12, and that's the max current it will draw. add a few amps to that and there's your fuse size.
I have 4 AWG wire running to a dristribution block in my trunk. That splits into two amps and my carputer. What size fuse should I put on the line running to the Opus in my carputer? In other words, how many amps does the Opus draw?
take the wattage of your opus ... divide by 12, and that's the max current it will draw. add a few amps to that and there's your fuse size.
My JeepPC Install
"there are no stupid questions, just stupid people."
"it's been agreed the whole world stinks so no one's taking showers anymore"
isnt the max wattage of the psu the max sustained wattage? you might want to add more than just a few amps, for burst power.Originally Posted by shakes
edit:
also, the psu only claims it's 90% efficient. that's cause it has to go dc-ac-dc. (transformers only work on ac power). so you have to have at the least 110(about) percent of it's wattage before dividing by 12 (if you want to follow his example). but i still think the wattage applies to sustained flow ("rms", if we were talking about amps.) so allow some burst power. yeah, that's what i was saying. you need to allow for burst power.
I found a 20 amp fuse, that good enough? It's a 150 watt Opus by the way.
that should be fine
My JeepPC Install
"there are no stupid questions, just stupid people."
"it's been agreed the whole world stinks so no one's taking showers anymore"
to my knowledge it's a 20 amp fuse that goes to the radio anyway.
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