• Bare Copper - Tinned

APPLICATIONS
Used for overhead electrical transmission and distribution lines, grounding electrical systems, electrical test equipment and other infrastructure.

CONSTRUCTION
Conductors: Concentric-lay stranded bare copper conductors available in soft temper only.
Tin Coating: A soft drawn conductor is either hot dipped or electroplated with tin. This process significantly improves corrosion resistance.

STANDARDS

  • ASTM B3 - Soft or annealed copper wire
  • ASTM B8 - Concentric-lay stranded copper conductors, all tempers
  • ASTM B33 - Tinned soft or annealed copper wire
  • ASTM B258 - Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors
  • Federal Specification QQ-W-343 - Wire, Electrical, Copper (Uninsulated)
NOTES
Dimensions and weights are nominal values, subject to standard manufacturing tolerances. Conductor ampacities are in accordance with the NEC, latest edition.


Updated 12/6/2021
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Item #

Size AWG
or
KCMIL

Number
of
Strands

Overall
Diameter

Weight
(lb/1000 ft)

Breaking
Strength
Soft

Allowable
Ampacity

N/A 8 N/A 7/w N/A 0.146 Inches N/A 51.0 Lbs N/A 499 Lbs N/A 95 Amps
N/A 6 N/A 7/w N/A 0.184 Inches N/A 81.1 Lbs N/A 794 Lbs N/A 130 Amps
N/A 4 N/A 7/w N/A 0.232 Inches N/A 128.9 Lbs N/A 1320 Lbs N/A 170 Amps
N/A 3 N/A 7/w N/A 0.260 Inches N/A 162.50 Lbs N/A 1670.0 Lbs N/A 200 Amps
N/A 2 N/A 7/w N/A 0.292 Inches N/A 204.9 Lbs N/A 2110 Lbs N/A 230 Amps
N/A 1 N/A 7/w N/A 0.332 Inches N/A 258.4 Lbs N/A 2552 Lbs N/A 265 Amps
N/A 1/0 N/A 7/w N/A 0.368 Inches N/A 325.8 Lbs N/A 3221 Lbs N/A 310 Amps
N/A 1/0 N/A 19/w N/A 0.373 Inches N/A 325.8 Lbs N/A 3221 Lbs N/A 310 Amps
N/A 2/0 N/A 7/w N/A 0.414 Inches N/A 410.9 Lbs N/A 4062 Lbs N/A 355 Amps
N/A 2/0 N/A 19/w N/A 0.418 Inches N/A 410.9 Lbs N/A 4062 Lbs N/A 355 Amps
N/A 3/0 N/A 7/w N/A 0.464 Inches N/A 518.1 Lbs N/A 5074 Lbs N/A 410 Amps
N/A 3/0 N/A 19/w N/A 0.470 Inches N/A 518.1 Lbs N/A 5074 Lbs N/A 410 Amps
N/A 4/0 N/A 7/w N/A 0.522 Inches N/A 653.3 Lbs N/A 6453 Lbs N/A 480 Amps
N/A 4/0 N/A 19/w N/A 0.528 Inches N/A 653.3 Lbs N/A 6453 Lbs N/A 480 Amps
N/A 250 MCM N/A 19/w N/A 0.575 Inches N/A 771.9 Lbs N/A 7940 Lbs N/A 530 Amps
N/A 300 MCM N/A 19/w N/A 0.628 Inches N/A 926.3 Lbs N/A 9160 Lbs N/A 590 Amps
N/A 350 MCM N/A 37/w N/A 0.681 Inches N/A 1081.0 Lbs N/A 10580 Lbs N/A 650 Amps
N/A 500 MCM N/A 37/w N/A 0.813 Inches N/A 1544.0 Lbs N/A 15240 Lbs N/A 810 Amps
N/A 600 MCM N/A 61/w N/A 0.893 Inches N/A 1853.0 Lbs N/A 18300 Lbs N/A 910 Amps
N/A 750 MCM N/A 61/w N/A 0.998 Inches N/A 2316.0 Lbs N/A 22890 Lbs N/A 1040 Amps
N/A 1000 MCM N/A 61/w N/A 1.152 Inches N/A 3088.0 Lbs N/A 30500 Lbs N/A 1240 Amps
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