Also if memory serves correctly A NEMA 0 is rated to a 3hp motor at 230 3ph or 5hp at 460 3ph. Either way I think they are rated up to somewhere in the range of 15-20 continuous amps. I can't remember starting amperage limits. ( We have so many of these at work that we have to mess with all the time it isn't funny. I run a Wastewater plant, so these are pretty familiar.)