R Bates Posted October 4, 2009 Posted October 4, 2009 can anyone tell me what amperage relay i will need for two 10" cooling fans please? Quote
western Posted October 4, 2009 Posted October 4, 2009 a standard 30amp relay should be more than adequete. Quote
LandyManLuke Posted October 4, 2009 Posted October 4, 2009 I'd put them on seperate relays. Motors are inductive loads, the mondeo fan on the 90 will pop 40A fuses at start-up, but will happily run on a 20A fuse once it's spun up. Be kind to the relay contacts and use two seperate relays Quote
R Bates Posted October 4, 2009 Author Posted October 4, 2009 Thanks for the reply's. I'm going to run a relay and switch for each fan so i can have one or both running as needed. Quote
Cartman Posted October 5, 2009 Posted October 5, 2009 I'd put them on seperate relays. Motors are inductive loads, the mondeo fan on the 90 will pop 40A fuses at start-up, but will happily run on a 20A fuse once it's spun up. Be kind to the relay contacts and use two seperate relays ....and it also gives you a bit of contingency if one motor either goes for a burden and takes a circuit out or relay failure Quote
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