Engineering Reference

Conductor Data

ACSR, AAC, AAAC, ACAR, ACSS, ACCC, and copper conductor specifications — diameter, weight, rated breaking strength, DC resistance, and ampacity. Field reference for working linemen, foremen, and apprentices.

⚠

Reference only. Values shown are general industry data. Always verify against current manufacturer datasheets, applicable codes, and engineering specifications for any job-specific application. Conductor selection, sizing, and installation must follow your utility\'s design standards and the project\'s engineering drawings.

Ampacity Basis

Ampacity values are at standard operating temperature with 25°C ambient, 0.6 m/s wind, full sun, sea level. ACSR / AAC / AAAC / ACAR / Copper: 75°C conductor. ACSS / ACSS/TW: 200°C. ACCC: 180°C. Real-world ampacity will vary with ambient, wind, sun, and altitude.

Use:130 shown

Type	Code	Size	Stranding	Diameter	Weight	RBS	Resistance	Ampacity	Op Temp	Standard
ACAR	—	750/4	12/7	25.2 mm	996 kg/km	93.0 kN	0.0790 Ω/km	790 A	75°C	ASTM B524
ACAR	—	927/19	18/19	27.7 mm	1,233 kg/km	117.0 kN	0.0641 Ω/km	890 A	75°C	ASTM B524
ACAR	—	1113/4	12/7	30.8 mm	1,481 kg/km	138.0 kN	0.0533 Ω/km	995 A	75°C	ASTM B524
ACAR	—	1351.5/4	12/7	33.9 mm	1,798 kg/km	167.5 kN	0.0439 Ω/km	1,140 A	75°C	ASTM B524
ACAR	—	1590/19	18/19	36.9 mm	2,128 kg/km	200.0 kN	0.0373 Ω/km	1,265 A	75°C	ASTM B524
Copper	—	8 AWG	Solid	3.3 mm	75 kg/km	3.4 kN	2.0610 Ω/km	90 A	75°C	ASTM B1
Copper	—	6 AWG	Solid	4.1 mm	120 kg/km	5.4 kN	1.2960 Ω/km	130 A	75°C	ASTM B1
Copper	—	4 AWG	Solid	5.2 mm	191 kg/km	8.5 kN	0.8150 Ω/km	175 A	75°C	ASTM B1
Copper	—	2 AWG	7	7.4 mm	308 kg/km	13.6 kN	0.5130 Ω/km	230 A	75°C	ASTM B8
Copper	—	1 AWG	7	8.3 mm	388 kg/km	17.0 kN	0.4070 Ω/km	270 A	75°C	ASTM B8
Copper	—	1/0 AWG	7	9.4 mm	490 kg/km	21.4 kN	0.3230 Ω/km	310 A	75°C	ASTM B8
Copper	—	2/0 AWG	7	10.5 mm	617 kg/km	26.9 kN	0.2560 Ω/km	360 A	75°C	ASTM B8
Copper	—	3/0 AWG	7	11.8 mm	778 kg/km	33.9 kN	0.2030 Ω/km	420 A	75°C	ASTM B8
Copper	—	4/0 AWG	7	13.3 mm	982 kg/km	42.7 kN	0.1610 Ω/km	490 A	75°C	ASTM B8
Copper	—	250	19	14.7 mm	1,156 kg/km	49.4 kN	0.1370 Ω/km	540 A	75°C	ASTM B8
Copper	—	350	19	17.4 mm	1,619 kg/km	69.0 kN	0.0978 Ω/km	670 A	75°C	ASTM B8
Copper	—	500	37	20.6 mm	2,317 kg/km	96.6 kN	0.0686 Ω/km	825 A	75°C	ASTM B8
Copper	—	750	61	25.4 mm	3,471 kg/km	142.5 kN	0.0457 Ω/km	1,050 A	75°C	ASTM B8
Copper	—	1000	61	29.3 mm	4,628 kg/km	188.0 kN	0.0343 Ω/km	1,240 A	75°C	ASTM B8
AAAC	Akron	246.9	7	14.3 mm	342 kg/km	35.0 kN	0.2320 Ω/km	410 A	75°C	ASTM B399
AAAC	Alton	312.8	7	16.1 mm	434 kg/km	44.4 kN	0.1830 Ω/km	470 A	75°C	ASTM B399
AAAC	Ames	312.8	19	16.3 mm	434 kg/km	47.0 kN	0.1830 Ω/km	470 A	75°C	ASTM B399
AAAC	Anaheim	394.5	19	18.3 mm	548 kg/km	59.4 kN	0.1450 Ω/km	530 A	75°C	ASTM B399
AAAC	Anthony	455.1	19	19.7 mm	632 kg/km	68.5 kN	0.1260 Ω/km	575 A	75°C	ASTM B399
AAC	Aster	3/0 AWG	7	11.8 mm	240 kg/km	14.4 kN	0.3310 Ω/km	305 A	75°C	ASTM B231
AAAC	Azusa	559.5	19	21.8 mm	775 kg/km	84.1 kN	0.1030 Ω/km	645 A	75°C	ASTM B399
ACSR	Bittern	1272	45/7	34.1 mm	2,138 kg/km	153.0 kN	0.0447 Ω/km	1,200 A	75°C	ASTM B232
ACCC	Bittern	1675	TW	34.1 mm	2,530 kg/km	134.0 kN	0.0345 Ω/km	2,230 A	180°C	CTC Global
ACSR/TW	Bittern/TW	1531	TW	34.1 mm	2,424 kg/km	165.0 kN	0.0372 Ω/km	1,360 A	75°C	ASTM B779
ACSS/TW	Bittern/TW	1531	TW	34.1 mm	2,424 kg/km	108.0 kN	0.0372 Ω/km	2,240 A	200°C	ASTM B857
AAC	Bluebell	1033.5	37	29.7 mm	1,426 kg/km	74.3 kN	0.0550 Ω/km	970 A	75°C	ASTM B231
ACSR	Bluebird	2156	84/19	44.8 mm	3,582 kg/km	271.0 kN	0.0265 Ω/km	1,690 A	75°C	ASTM B232
ACSR	Bluejay	1113	45/7	31.9 mm	1,869 kg/km	134.0 kN	0.0511 Ω/km	1,110 A	75°C	ASTM B232
ACSS	Bluejay	1113	45/7	31.9 mm	1,869 kg/km	87.0 kN	0.0511 Ω/km	1,810 A	200°C	ASTM B856
ACCC	Bluejay	1450	TW	31.9 mm	2,185 kg/km	116.0 kN	0.0395 Ω/km	2,050 A	180°C	CTC Global
ACSR/TW	Bluejay/TW	1339	TW	31.9 mm	2,118 kg/km	144.0 kN	0.0426 Ω/km	1,255 A	75°C	ASTM B779
ACSS/TW	Bluejay/TW	1339	TW	31.9 mm	2,118 kg/km	93.0 kN	0.0426 Ω/km	2,070 A	200°C	ASTM B857
ACSR	Bobolink	1431	45/7	36.2 mm	2,406 kg/km	171.0 kN	0.0398 Ω/km	1,290 A	75°C	ASTM B232
ACSR	Brant	397.5	24/7	19.6 mm	748 kg/km	65.8 kN	0.1460 Ω/km	590 A	75°C	ASTM B232
ACSR	Bunting	1192.5	45/7	33.1 mm	2,002 kg/km	144.0 kN	0.0477 Ω/km	1,160 A	75°C	ASTM B232
AAAC	Cairo	465.4	19	19.9 mm	643 kg/km	70.0 kN	0.1240 Ω/km	580 A	75°C	ASTM B399
AAC	Camellia	1192.5	61	31.9 mm	1,645 kg/km	85.6 kN	0.0477 Ω/km	1,060 A	75°C	ASTM B231
ACSR	Canary	900	54/7	29.5 mm	1,725 kg/km	142.0 kN	0.0631 Ω/km	970 A	75°C	ASTM B232
AAC	Canna	397.5	19	18.4 mm	549 kg/km	31.2 kN	0.1430 Ω/km	545 A	75°C	ASTM B231
AAAC	Canton	740.8	37	25.2 mm	1,024 kg/km	110.5 kN	0.0773 Ω/km	770 A	75°C	ASTM B399
ACSR	Cardinal	954	54/7	30.4 mm	1,828 kg/km	151.0 kN	0.0596 Ω/km	1,010 A	75°C	ASTM B232
ACSS	Cardinal	954	54/7	30.4 mm	1,828 kg/km	98.0 kN	0.0596 Ω/km	1,660 A	200°C	ASTM B856
ACCC	Cardinal	1230	TW	30.4 mm	1,853 kg/km	98.0 kN	0.0466 Ω/km	1,860 A	180°C	CTC Global
ACSR/TW	Cardinal/TW	1141	TW	30.4 mm	2,069 kg/km	159.0 kN	0.0498 Ω/km	1,140 A	75°C	ASTM B779
ACSS/TW	Cardinal/TW	1141	TW	30.4 mm	2,069 kg/km	105.0 kN	0.0498 Ω/km	1,880 A	200°C	ASTM B857
ACSR	Catbird	954	36/1	29.5 mm	1,442 kg/km	85.4 kN	0.0594 Ω/km	1,000 A	75°C	ASTM B232
ACSR	Chukar	1780	84/19	40.7 mm	2,967 kg/km	224.0 kN	0.0321 Ω/km	1,480 A	75°C	ASTM B232
ACSR	Condor	795	54/7	27.7 mm	1,521 kg/km	125.5 kN	0.0719 Ω/km	900 A	75°C	ASTM B232
AAC	Coreopsis	556.5	19	21.7 mm	768 kg/km	41.6 kN	0.1030 Ω/km	670 A	75°C	ASTM B231
AAC	Cosmos	477	19	20.1 mm	658 kg/km	36.0 kN	0.1190 Ω/km	610 A	75°C	ASTM B231
AAC	Dahlia	556.5	37	21.7 mm	768 kg/km	43.2 kN	0.1030 Ω/km	670 A	75°C	ASTM B231
AAC	Daisy	266.8	19	15.1 mm	368 kg/km	21.6 kN	0.2140 Ω/km	420 A	75°C	ASTM B231
ACSR	Dipper	1351.5	45/7	35.2 mm	2,273 kg/km	162.0 kN	0.0421 Ω/km	1,250 A	75°C	ASTM B232
ACSR	Dove	556.5	26/7	23.6 mm	1,140 kg/km	100.0 kN	0.1030 Ω/km	730 A	75°C	ASTM B232
ACSS	Dove	556.5	26/7	23.6 mm	1,140 kg/km	65.0 kN	0.1030 Ω/km	1,200 A	200°C	ASTM B856
ACSR	Drake	795	26/7	28.1 mm	1,628 kg/km	140.0 kN	0.0721 Ω/km	900 A	75°C	ASTM B232
ACSS	Drake	795	26/7	28.1 mm	1,628 kg/km	91.0 kN	0.0721 Ω/km	1,500 A	200°C	ASTM B856
ACCC	Drake	1020	TW	28.1 mm	1,543 kg/km	87.0 kN	0.0560 Ω/km	1,660 A	180°C	CTC Global
ACSR/TW	Drake/TW	959	TW	28.1 mm	1,825 kg/km	150.0 kN	0.0598 Ω/km	1,010 A	75°C	ASTM B779
ACSS/TW	Drake/TW	959	TW	28.1 mm	1,825 kg/km	98.0 kN	0.0598 Ω/km	1,660 A	200°C	ASTM B857
ACSR	Eagle	556.5	30/7	24.2 mm	1,297 kg/km	121.0 kN	0.1030 Ω/km	735 A	75°C	ASTM B232
ACSR	Falcon	1590	54/19	39.2 mm	3,052 kg/km	246.0 kN	0.0359 Ω/km	1,380 A	75°C	ASTM B232
ACSS	Falcon	1590	54/19	39.2 mm	3,052 kg/km	160.0 kN	0.0359 Ω/km	2,240 A	200°C	ASTM B856
ACCC	Falcon	2375	TW	39.2 mm	3,580 kg/km	188.0 kN	0.0240 Ω/km	2,780 A	180°C	CTC Global
ACSR	Finch	1113	54/19	32.8 mm	2,134 kg/km	175.0 kN	0.0511 Ω/km	1,110 A	75°C	ASTM B232
ACSR/TW	Finch/TW	1339	TW	32.8 mm	2,410 kg/km	188.0 kN	0.0426 Ω/km	1,260 A	75°C	ASTM B779
AAC	Goldenrod	1590	61	36.9 mm	2,194 kg/km	113.5 kN	0.0359 Ω/km	1,240 A	75°C	ASTM B231
ACSR	Grackle	1192.5	54/19	33.9 mm	2,287 kg/km	187.0 kN	0.0477 Ω/km	1,160 A	75°C	ASTM B232
AAAC	Greeley	927.2	37	28.2 mm	1,283 kg/km	138.0 kN	0.0617 Ω/km	880 A	75°C	ASTM B399
ACSR	Hawk	477	26/7	21.8 mm	978 kg/km	86.0 kN	0.1200 Ω/km	670 A	75°C	ASTM B232
ACSS	Hawk	477	26/7	21.8 mm	978 kg/km	56.0 kN	0.1200 Ω/km	1,100 A	200°C	ASTM B856
ACCC	Hawk	615	TW	21.8 mm	938 kg/km	53.0 kN	0.0925 Ω/km	1,200 A	180°C	CTC Global
ACSR/TW	Hawk/TW	569	TW	21.8 mm	1,080 kg/km	92.0 kN	0.1000 Ω/km	745 A	75°C	ASTM B779
ACSS/TW	Hawk/TW	569	TW	21.8 mm	1,080 kg/km	60.0 kN	0.1000 Ω/km	1,230 A	200°C	ASTM B857
ACSR	Hen	477	30/7	22.4 mm	1,112 kg/km	103.0 kN	0.1200 Ω/km	670 A	75°C	ASTM B232
ACSR	Ibis	397.5	26/7	19.9 mm	814 kg/km	71.6 kN	0.1440 Ω/km	590 A	75°C	ASTM B232
AAC	Iris	2 AWG	7	7.4 mm	95 kg/km	6.0 kN	0.8380 Ω/km	160 A	75°C	ASTM B231
ACSR	Kiwi	2167	72/7	44.1 mm	3,380 kg/km	220.0 kN	0.0264 Ω/km	1,690 A	75°C	ASTM B232
ACSR	Lapwing	1590	45/7	38.2 mm	2,671 kg/km	189.0 kN	0.0359 Ω/km	1,380 A	75°C	ASTM B232
ACCC	Lapwing	2100	TW	38.2 mm	3,163 kg/km	168.0 kN	0.0274 Ω/km	2,570 A	180°C	CTC Global
ACSR/TW	Lapwing/TW	1916	TW	38.2 mm	3,036 kg/km	204.0 kN	0.0298 Ω/km	1,565 A	75°C	ASTM B779
ACSR	Lark	397.5	30/7	20.4 mm	927 kg/km	86.7 kN	0.1440 Ω/km	595 A	75°C	ASTM B232
AAC	Laurel	266.8	19	15.1 mm	368 kg/km	21.6 kN	0.2140 Ω/km	420 A	75°C	ASTM B231
ACSR	Linnet	336.4	26/7	18.3 mm	689 kg/km	63.1 kN	0.1700 Ω/km	530 A	75°C	ASTM B232
ACSS	Linnet	336.4	26/7	18.3 mm	689 kg/km	41.0 kN	0.1700 Ω/km	870 A	200°C	ASTM B856
ACCC	Linnet	440	TW	18.3 mm	663 kg/km	37.0 kN	0.1300 Ω/km	920 A	180°C	CTC Global
ACSR/TW	Linnet/TW	402	TW	18.3 mm	766 kg/km	68.0 kN	0.1420 Ω/km	590 A	75°C	ASTM B779
ACSS/TW	Linnet/TW	402	TW	18.3 mm	766 kg/km	44.0 kN	0.1420 Ω/km	955 A	200°C	ASTM B857
ACSR	Mallard	795	30/19	28.9 mm	1,851 kg/km	170.0 kN	0.0723 Ω/km	905 A	75°C	ASTM B232
AAAC	Manitoba	1113	61	30.8 mm	1,535 kg/km	158.0 kN	0.0514 Ω/km	990 A	75°C	ASTM B399
AAC	Marigold	1113	61	30.8 mm	1,535 kg/km	80.0 kN	0.0511 Ω/km	1,015 A	75°C	ASTM B231
ACSR	Martin	1351.5	54/19	36.2 mm	2,596 kg/km	211.0 kN	0.0421 Ω/km	1,250 A	75°C	ASTM B232
AAC	Mistletoe	795	37	26.0 mm	1,097 kg/km	56.2 kN	0.0716 Ω/km	830 A	75°C	ASTM B231
AAC	Orchid	636	37	23.2 mm	878 kg/km	47.4 kN	0.0894 Ω/km	730 A	75°C	ASTM B231
ACSR	Oriole	336.4	30/7	18.8 mm	784 kg/km	75.6 kN	0.1710 Ω/km	535 A	75°C	ASTM B232
ACSR	Osprey	556.5	18/1	22.3 mm	1,066 kg/km	53.4 kN	0.1030 Ω/km	730 A	75°C	ASTM B232
ACSR	Ostrich	300	26/7	17.3 mm	616 kg/km	56.5 kN	0.1900 Ω/km	490 A	75°C	ASTM B232
AAC	Oxlip	266.8	7	14.9 mm	371 kg/km	21.4 kN	0.2140 Ω/km	420 A	75°C	ASTM B231
AAC	Pansy	1/0 AWG	7	9.4 mm	151 kg/km	9.4 kN	0.5270 Ω/km	230 A	75°C	ASTM B231
ACSR	Parakeet	556.5	24/7	23.2 mm	1,042 kg/km	87.7 kN	0.1040 Ω/km	730 A	75°C	ASTM B232
ACSR	Partridge	266.8	26/7	16.3 mm	547 kg/km	50.6 kN	0.2140 Ω/km	460 A	75°C	ASTM B232
AAC	Peachbell	6 AWG	7	4.7 mm	37 kg/km	2.4 kN	2.1150 Ω/km	90 A	75°C	ASTM B231
ACSR	Peacock	605	24/7	24.2 mm	1,133 kg/km	95.4 kN	0.0950 Ω/km	770 A	75°C	ASTM B232
ACSR	Penguin	4/0 AWG	6/1	18.0 mm	780 kg/km	60.0 kN	0.2680 Ω/km	355 A	75°C	ASTM B232
ACSR	Pheasant	1272	54/19	35.1 mm	2,441 kg/km	199.0 kN	0.0447 Ω/km	1,200 A	75°C	ASTM B232
AAC	Phlox	4/0 AWG	7	13.3 mm	303 kg/km	17.8 kN	0.2620 Ω/km	350 A	75°C	ASTM B231
ACSR	Pigeon	3/0 AWG	6/1	16.0 mm	618 kg/km	49.0 kN	0.3380 Ω/km	305 A	75°C	ASTM B232
ACSR	Plover	1431	54/19	37.2 mm	2,748 kg/km	222.0 kN	0.0398 Ω/km	1,290 A	75°C	ASTM B232
AAC	Poppy	2/0 AWG	7	10.5 mm	191 kg/km	11.6 kN	0.4180 Ω/km	265 A	75°C	ASTM B231
ACSR	Quail	2/0 AWG	6/1	14.3 mm	490 kg/km	39.6 kN	0.4260 Ω/km	265 A	75°C	ASTM B232
ACSR	Rail	954	45/7	29.6 mm	1,601 kg/km	117.0 kN	0.0596 Ω/km	1,005 A	75°C	ASTM B232
ACSR	Raven	1/0 AWG	6/1	12.7 mm	389 kg/km	32.5 kN	0.5370 Ω/km	230 A	75°C	ASTM B232
ACSR	Robin	1 AWG	6/1	11.4 mm	308 kg/km	26.0 kN	0.6770 Ω/km	195 A	75°C	ASTM B232
AAC	Rose	4 AWG	7	5.9 mm	60 kg/km	3.8 kN	1.3310 Ω/km	120 A	75°C	ASTM B231
ACSR	Sparate	2 AWG	7/1	10.7 mm	269 kg/km	24.5 kN	0.8540 Ω/km	165 A	75°C	ASTM B232
ACSR	Sparrow	2 AWG	6/1	10.1 mm	244 kg/km	21.4 kN	0.8520 Ω/km	165 A	75°C	ASTM B232
ACSR	Squab	605	26/7	24.7 mm	1,239 kg/km	108.5 kN	0.0951 Ω/km	775 A	75°C	ASTM B232
ACSR	Swan	4 AWG	6/1	8.0 mm	154 kg/km	14.0 kN	1.3490 Ω/km	120 A	75°C	ASTM B232
ACSR	Swanate	4 AWG	7/1	8.4 mm	171 kg/km	16.0 kN	1.3540 Ω/km	125 A	75°C	ASTM B232
ACSR	Teal	605	30/19	25.2 mm	1,409 kg/km	130.0 kN	0.0954 Ω/km	780 A	75°C	ASTM B232
ACSR	Tern	795	45/7	27.0 mm	1,334 kg/km	100.5 kN	0.0717 Ω/km	895 A	75°C	ASTM B232
ACSS	Tern	795	45/7	27.0 mm	1,334 kg/km	65.4 kN	0.0717 Ω/km	1,480 A	200°C	ASTM B856
AAC	Tulip	336.4	19	16.9 mm	464 kg/km	26.4 kN	0.1700 Ω/km	490 A	75°C	ASTM B231
ACSR	Turkey	6 AWG	6/1	6.4 mm	97 kg/km	8.9 kN	2.1390 Ω/km	90 A	75°C	ASTM B232
ACSR	Waxwing	266.8	18/1	15.5 mm	511 kg/km	27.5 kN	0.2140 Ω/km	449 A	75°C	ASTM B232

Conductor Types At A Glance

Choosing the right conductor

ACSR

Aluminum Conductor Steel Reinforced — the default transmission/distribution conductor.

ACSR/TW

Trapezoidal-strand ACSR — same outside diameter as standard ACSR with more aluminum cross-section. Used for capacity upgrades on existing structures.

AAC

All Aluminum Conductor — distribution, urban, and lower-strength applications. No steel core.

AAAC

All Aluminum Alloy Conductor — higher strength than AAC, used where corrosion is a concern.

ACAR

Aluminum Conductor Alloy Reinforced — moderate strength, low loss. Less common than ACSR.

ACSS

Aluminum Conductor Steel Supported — high-temperature low-sag (HTLS). Operates up to 250°C.

ACSS/TW

Trapezoidal ACSS — the most common HTLS reconductor for capacity upgrades.

ACCC

Aluminum Conductor Composite Core — modern HTLS with polymer composite core. Used heavily in current grid expansion projects.

Copper

Hard-drawn copper — distribution, substation jumpers, and grounding applications.

Authoritative Standards

Source standards

Each conductor type listed here conforms to one or more published industry standards. For design or specification work, always reference the current version of the standard directly:

ASTM B231 →

AAC — Concentric-lay-stranded all-aluminum conductor

ASTM B232 →

ACSR — Concentric-lay-stranded ACSR conductor

ASTM B398 →

AAAC base aluminum-alloy 6201 wire

ASTM B399 →

AAAC — Concentric-lay-stranded 6201-T81 conductor

ASTM B524 →

ACAR — Concentric-lay-stranded aluminum/aluminum alloy reinforced

ASTM B779 →

Trapezoidal-strand ACSR (ACSR/TW)

ASTM B856 →

ACSS — Concentric-lay-stranded steel-supported conductor

ASTM B857 →

ACSS/TW — Trapezoidal steel-supported conductor

ASTM B1 / B8 →

Hard-drawn copper wire / stranded copper conductors

IEC 61089 →

Round wire concentric lay overhead conductors

CSA C49.1 →

Bare overhead aluminum conductors (Canadian equivalent)

CTC Global ACCC →

Composite-core conductor specifications (single-source)

Legal Disclaimer

The data on this page is provided for general reference and educational purposes only. Values are sourced from published industry handbooks (Aluminum Association ECS-1, ASTM, IEEE, IEC, CSA, CTC Global) and standard manufacturer literature, but specifications can vary between manufacturers and may be revised over time. Enerzas makes no representation that this data is current, complete, or appropriate for any specific design, construction, or operating decision. Always reference the engineering specifications, design drawings, and applicable standards (NESC, CSA C22.3 No. 1, IEEE, OSHA 1910.269) for your specific job. When in doubt, consult a licensed professional engineer or your utility\'s standards group. Enerzas assumes no liability for the use or misuse of this data.

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