AIM Manual

Motor Application » Three-Phase Motors (Page 19)

Cable Selection - 75 °C Three-Wire

Table 19 Three-Phase 75 °C Cable, 60 Hz (Service Entrance to Motor) Maximum Length in Feet
MOTOR RATING75 °C INSULATION - AWG COPPER WIRE SIZEMCM COPPER WIRE SIZE
VOLTSHPKW1412108643210000000000250300350400500
200 V
60 Hz
Three-
Phase
3-
Lead
1/20.377101140180028404420
3/40.55510810128020303160
10.7543069010801710267041405140
1.51.13105007901260196030503780
21.5240390610970152023602940361044305420
32.2180290470740116018102250276033904130
53.7110170280440690108013501660204024903050367044405030
7.55.5002003104907709601180145017702170260031503560
107.5001502303705707208801090133016401970239027203100348038004420
151100016025039049060074091011101340163018502100235025702980
201500001903003804605707008601050127014401650185020202360
2518.500000240300370460570700840103011701330150016401900
3022000002002503103804705807008509701110125013601590
230 V
60 Hz
Three-
Phase
3-
Lead
1/20.3793014902350370057608910
3/40.556701080170025804190649080609860
10.75560910143022603520546067808290
1.51.142067010601670261040505030616075309170
21.532051081012802010313038904770586071708780
32.2240390620990154024002980366044805470669080209680
53.7140230370590920143017902190269032904030485058706650756084609220
7.55.501602604206501020127015601920234028703440416047105340597065007510
107.50019031049076095011701440176021602610316035904100460050205840
1511000210330520650800980120014701780215024402780311034003940
201500016025040050061076093011401380168019102180245026803120
2518.500002003204005006107509201120136015401760198021602520
302200000260330410510620760930113012801470165018002110
380 V
60 Hz
Three-
Phase
3-
Lead
1/20.37269042906730
3/40.552000319050107860
10.7516202580406063909980
1.51.112301970310048907630
21.587013902180345054008380
32.26801090171026904200650080209830
53.740064010101590249038704780587072308830
7.55.5270440690109017102640326040004930601072908780
107.520032051080012501930238029103570433052306260739082809340
151100370590920143017702170269032904000484057706520743082508990
2015002804407001090135016702060253030903760450051102840651071208190
2518.5000360570880110013501670205025103040364041304720525057406590
302200029047073091011201380170020802520302034303920436047705490
4030000005306608201010124015201840220025002850317034703990
503700000440540660820100012201480177020102290255027803190
60450000037046056069085010301250150017001940215023502700
755500000004605707008601050127014401660185020302350
100750000000042051063076091010301180131014301650
125930000000000510620740840950106011601330
150110000000000005206207007908809601090
1751300000000000005606507508409201070
2001500000000000000550630700760880
  • 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.