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For the moment, I want to try powering a 3ph scroll saw [in the process of bringing it back to life] with the 003 and am wondering what cord/plug set up to use. I will use the cord, in some fashion, in the future in a shop as well...eventually. The saw was built in July 1942 and is powered by a Howell 1.5 hp induction resistance motor, the plate of which reads: frame A225; type SC; 855 rpm; 220v, 6.1a; 440v, 3.0a; code = H; and RLS = 40.
208v inrush calculated using the Reliance site [thanks, Speddmon] is 26.2 - 29.5a. I am guessing that a run limit switch is incorporated in the motor, based on the plate, and that this is the reason that the Air Force slapped a "40 AMP" sticker on the SquareD 3-pole start/stop switch that it installed at some point in time. I'd like to wire a female plug to the saw and fab a cord to connect to the 003 using a locking plug/receptacle. The cord is the question. Actually, I suppose that both plugs and cord are the question. Given the calculated inrush, do I have to cover the 40a limit in both plugs and cord [seems extreme] or do I just have to account for the ~30 amps? Staying with SEOOW, 12/4 will cover 20 amps; 10/4, 25 amps, 8/4, 35 amps, and 6/4 gets me 45 amps. Cord run will be 20-30 feet. For what it's worth, the former supply wire in the flex conduit looks like stranded 12AWG; the wire from the switch to the motor looks like solid 12AWG. Surely the AF could not have been wrong?!?
Thoughts??
bill
208v inrush calculated using the Reliance site [thanks, Speddmon] is 26.2 - 29.5a. I am guessing that a run limit switch is incorporated in the motor, based on the plate, and that this is the reason that the Air Force slapped a "40 AMP" sticker on the SquareD 3-pole start/stop switch that it installed at some point in time. I'd like to wire a female plug to the saw and fab a cord to connect to the 003 using a locking plug/receptacle. The cord is the question. Actually, I suppose that both plugs and cord are the question. Given the calculated inrush, do I have to cover the 40a limit in both plugs and cord [seems extreme] or do I just have to account for the ~30 amps? Staying with SEOOW, 12/4 will cover 20 amps; 10/4, 25 amps, 8/4, 35 amps, and 6/4 gets me 45 amps. Cord run will be 20-30 feet. For what it's worth, the former supply wire in the flex conduit looks like stranded 12AWG; the wire from the switch to the motor looks like solid 12AWG. Surely the AF could not have been wrong?!?
Thoughts??
bill