Originally Posted by Al_The_Man There is one general rule used in RPC, that if all the loads are 3 phase motors, then the RPC can be 1/3rd to 1/2 of the size of the total motors,
Al. |
So this would say that I could have a 0.66 to 1HP RPC for my 2HP 3PH spindle motor....when its running, and at least a 2HP to start it. So if I have read you correctly, a 2HP is the right choice. Note that the RPC only runs the CNC Mill, I don't have any other three phase machines.
Thanks