Somewhere on here @goldduster318 did a write up on how to wire these fans up. I can't find it, but it used 2 70 amp relays (one for hi and one for lo) and a 60 amp maxi fuse. This setup was controlled by a Dakota digital controller. I set up my Taurus fans the same way. I'll keep digging for the write up.
I have a Delta Pag pretty straight H/L control. 1 40 amp inline fuse from the battery and a heat sensor to the radiator. Pretty bullet proof. I didn't check to see if the sensor wire may have come out.
