Chris Davies Posted November 8, 2012 Share Posted November 8, 2012 Anybody got a rough ball park figure of the power of an electric cooling fan? It's off an Astra car if thats any help. I just want to work out what size fuse and how heavy the wiring should be. Cheers Chris Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted November 8, 2012 Share Posted November 8, 2012 The ford mondeo fan on my 90 needs a 40A fuse to start, but will run on a 20A fuse once it's started, if that gives you an idea. Quote Link to comment Share on other sites More sharing options...
LiamC Posted November 9, 2012 Share Posted November 9, 2012 I have a ford mondeo fan on mine, tried it on a 20A fuse and it blew on start up, I have been running it on a 30A fuse for a while without a problem, doubt you'll get away with anything smaller. Quote Link to comment Share on other sites More sharing options...
Chris Davies Posted November 9, 2012 Author Share Posted November 9, 2012 Yes after abit more research I was coming to the conclusion that 30amp fuse and 2.5mm wire is the way to go. Cheers Chris Quote Link to comment Share on other sites More sharing options...
Nigelw Posted November 9, 2012 Share Posted November 9, 2012 30 amps is normal rating for electric fans on cars, best to keep as few joins in the wiring as this often results in a higher power consumption and often over loads the fuse on start up. My old RRC had a leccy one from something, it had no less than 5 different varieties of cable from battery to switch and then to fan and earth, no relay and actually no fuse!!! Cowboy sparkies I tell ya!! Quote Link to comment Share on other sites More sharing options...
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