[BBray_T1296]

Originally Posted by tessa.krause

This year my team is looking at using a lot more motor controllers so we are considering using two power distribution boards.

If you are using so many motors you need a second distribution board, chances are you likely will be operating awfully close to the 120Amps it takes to snap the Main Breaker (if not above 120A!).

I cannot find a specific rule disallowing the use of a second PDB, but I have never seen it before. In 2012 we had 15* motors each on their own Victor/Spike/Jag. We were cutting it close on slots, but we still had 2-3 left at the end. We never had a current problem, but I would bet we were running above 100A at times.

My $0.02: If your robot takes that many motors, your robot probably needs to be redesigned. 15* motors was a bad idea, because of complexity and the shear weight of the things. Our robot this year had a total of just 5 motors. 4 were in the drive-train.



*Plus 1 Vex motor, but it only needs the power given off by the Sidecar via PWM.