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Fuse For Electric Fan

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What sort of ampage should I be using to wire in an electric fan in an E30?

It is 12 inch and 85 watts. That is all the info i can give sorry.

Any help would be sweet

Cheers

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What sort of ampage should I be using to wire in an electric fan in an E30?

It is 12 inch and 85 watts. That is all the info i can give sorry.

Any help would be sweet

Cheers

3rd form maths:

Watts(W) = Voltage(V) x Current(I)

W=85 and V=12

so

85 = 12 x I

85 / 12 = I

7.08333 = I

So continuous current at 12V = 7A

And continuous current at 14.4V (when battery is being charged) = 5.9A

Allowing for some surge current at startup, I would fuse at 2x continuous current, ie use a 15A fuse.

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Man, I would have never have thought I would need that crap :P

Cheers mate

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