Amp Sizing Assistance

FULL LOAD CURRENTS
Three Phase AC Induction Motors
HP .5 .75 1 1.5 2 3 5 7.5 10 15 20 25 30 40 50 60 75 100 125 150 200
115V 4 5.6 7.2 10 4 13.6 X X X X X X X X X X X X X X X
200V 2.3 3.2 4.15 6 7.8 11 17.5 25 32 48 62 78 92 120 150 177 221 285 358 415 550
230V 2 2.8 3.6 5.2 6.8 9.6 15.2 22 28 42 54 68 80 104 130 154 192 248 312 360 480
460V 1 1.4 1.8 2.6 3.4 4.8 7.6 11 14 21 27 34 40 52 65 77 96 124 156 180 240
575V 0.8 1.1 1.4 2.1 2.7 3.9 6.1 9 11 17 22 27 32 41 52 62 77 99 125 144 192

Note: Match your HP to the chart above. If the amperage of your motor exceeds the amperage show, go to the next size converter. Example: If your 5 HP motor at 230 V has an amperage of 17 amps, use 7.5 HP Roto-Phase.

Contact ARCO

Home Office:
2325 E. Michigan Road
Shelbyville, IN 46176-3400
Toll Free: 800-428-4370
Direct: 317-398-9713
Fax: 317-398-2655
Location Manager:
E-Mail: Hal Pike
Sales Manager:
E-Mail: Tim Drake