I am installing 6 identicle pieces of equipment in particular area. Each unit has a 1hp. 460 volt 3phase motor, FLA is 3amps. I have motor starters complete with OL relays set at 3.75 amps on each unit. I am planning on having 1 branch circuit to supply all six units and have a twistlock plug and receptacle at each unit for disconnecting means. According to my calculations a 20 amp circuit would be right, 3amp X 5 units = 15 amps + 3.75 amps for the 6th unit = 18.75 amps (or 20 amps). Am I figuring this right? Also I currently have a 30 amp unused branch circuit at this location. Is there a problem with using that circuit and installing 20amp fuses on each phase before continuing on to my recepts? I know this setup will work, but does anyone know of a safer and/or more practicle way of connecting this equipment?
