AIM Manual

Motor Application » Three-Phase Motors (Page 20)

Cable Selection - 75 °C Three-Wire (Continued)

Table 20 Three-Phase 75 °C Cable (Continued)
MOTOR RATING75 °C INSULATION - AWG COPPER WIRE SIZEMCM COPPER WIRE SIZE
VOLTSHPKW1412108643210000000000250300350400500
460 V
60 Hz
Three-
Phase
3-
Lead
1/20.37377060209460
3/40.55273043506850
10.752300367057709070
1.51.11700271042706730
21.513002070327051508050
32.210001600252039706200
53.75909501500236037005750
7.55.54206801070169026404100510062607680
107.53105007901250196030503800468057507050
1511034054085013402090260032003930481059007110
20150041065010301610200024703040373045805530
2518.50033053083013001620199024503010370044705430
3022002704306801070133016402030249030603700450051305860
403000032050079098012101490183022502710329037304250
503700004106408009801210148018102190265030103420383041804850
6045000005406708301020125015401850224025402890324035404100
755500000440550680840103012601520185021002400270029503440
1007500000005006207609401130138015601790201021902550
12593000000000600740890100012201390156017001960
150110000000000063076092010501190134014601690
175130000000000006708109301060119013001510
20015000000000000590710810920103011301310
575 V
60 Hz
Three-
Phase
3-
Lead
1/20.3759009410
3/40.5542706810
10.75363058009120
1.51.1262041806580
21.52030325051108060
32.21580253039806270
53.79201480233036805750
7.55.56601060168026504150
107.549078012401950306047705940
15113305308501340209032604060
201504106501030161025203140386047605830
2518.500520830130020302530311038404710
3022004306801070167020802560316038804770578070308000
4030000500790124015401900233028603510423051405830
50370004106401000125015401890231028403420414047005340599065307580
60450000540850106013001600196024002890350039704520507055306410
75550000069086010601310160019702380289032903750522046105370
10075000000640790970119014601770215024402790314034303990
12593000000063077095011601400169019202180244026503070
150110000000006608009901190144016301860208022702640
1751300000000007008701050127014501650186020302360
2001500000000000760920111012601440162017602050
  • Lengths in BOLD only meet the US National Electrical Code ampacity requirements for individual conductors in free air or water. Lengths NOT in bold meet NEC ampacity requirements for either individual conductors or jacketed cable. See page 11 for additional details.