Wire material Copper Aluminum Wire size 14 AWG12 AWG10 AWG8 AWG6 AWG4 AWG3 AWG2 AWG1 AWG1/0 AWG2/0 AWG3/0 AWG4/0 AWG250 kcmil300 kcmil350 kcmil400 kcmil500 kcmil600 kcmil750 kcmil1000 kcmil Material of conduit PVC Aluminum Steel Power factor (PF) Wire material Copper Aluminum Silver Gold Wire size 600 kcmil500 kcmil400 kcmil350 kcmil300 kcmil250 kcmil4/0 AWG (212 kcmil)3/0 AWG (168 kcmil)2/0 AWG (133 kcmil)1/0 AWG (106 kcmil)1 AWG (83.7 kcmil)2 AWG (66.4 kcmil)3 AWG (52.6 kcmil)4 AWG (41.7 kcmil)5 AWG (33.1 kcmil)6 AWG (26.3 kcmil)7 AWG (20.8 kcmil)8 AWG (16.5 kcmil)9 AWG (13.1 kcmil)10 AWG (10.4 kcmil)11 AWG (8.23 kcmil)12 AWG (6.53 kcmil)13 AWG (5.18 kcmil)14 AWG (4.11 kcmil)15 AWG (3.26 kcmil)16 AWG (2.58 kcmil)17 AWG (2.05 kcmil)18 AWG (1.62 kcmil)19 AWG (1.29 kcmil)20 AWG (1.02 kcmil)21 AWG (0.810 kcmil)22 AWG (0.642 kcmil)23 AWG (0.509 kcmil)24 AWG (0.404 kcmil)25 AWG (0.320 kcmil)26 AWG (0.254 kcmil)27 AWG (0.202 kcmil)28 AWG (0.160 kcmil)29 AWG (0.127 kcmil)30 AWG (0.101 kcmil)31 AWG (0.0797 kcmil)32 AWG (0.0632 kcmil)33 AWG (0.0501 kcmil)34 AWG (0.0398 kcmil)35 AWG (0.0315 kcmil)36 AWG (0.0250 kcmil)37 AWG (0.0198 kcmil)38 AWG (0.0157 kcmil)39 AWG (0.0125 kcmil)40 AWG (0.00989 kcmil) Wire impendence or resistance Ω/km Ω/m mΩ/m Ω/1000ft Ω/ft mΩ/ft Voltage Phase DC AC single phase AC 3-phase Number of conductors single set of conductors 2 conductors per phase in parallel3 conductors per phase in parallel4 conductors per phase in parallel5 conductors per phase in parallel6 conductors per phase in parallel7 conductors per phase in parallel8 conductors per phase in parallel9 conductors per phase in parallel Distance (one-way) feet meters miles kilometers Load current Amps