Electric Fan Fuse Size

Each relay will control a single fan and a 30 amp fuse is recommended for each relay connection to the battery.

Electric fan fuse size.

Add it all up. Once the key has been turned to the on position but for it to get power it needs a fuse plugged in but i would have no idea what amperage fuse to use. In the painless performance electric fan relay kit we got from speedway motors a circuit breaker is. You either need the constant 12 volt power to be run through a circuit breaker or a fuse.

Select motor size from horsepower column making certain you are in the correct voltage. Here is a picture of the wiring diagram the circuit breaker i believe is a 35 amp. Go vertically to the head of that column for the recommended wire size. Shoot for good quality 40 amp version not the cheap 20 amp as shown in the picture.

12 awg wire is marginal for a 20 amp circuit that will draw 20 amps. Although 12 gauge will carry 20 amps you should not exceed 75 of a wires capacity for extended period of time so for fans that will draw a constant 20 amps you should use 10 awg stranded copper wire. A single 10 inch fan can draw anywhere from 5 20amps. If you want to put all of these on a single circuit you ll need to know the current.

Based on the table above each transformer draws 700ma each superflux led draws 80ma and the led strip draws 80ma. 700 2 80 5 80 1 1880ma in total. If you are using 2 fans watching the fuse size relay and wiring capacity is even more important. Left most relay standard automotive bosch style relay.

The brown wire to pin 86 is the one i need help with on fuse size. Read horizontally to the right until the distance is as great or greater than your installation distance. The important part to keep in mind is how much current your fan system will draw. Thanks for any offered help.