Bare Copper Solid or Compressed

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Construction:

Conductor: Solid bare copper or Class A, B, or C compressed stranded bare copper per ASTM B3 and B8

Applications and Features:

The conductor is manufactured from Electrolytic Tough Pitch (ETP) copper, designated as Unified Numbering System (UNS) C11000, which applies to all copper products regardless of temper or stranding classification.

Soft-drawn copper exhibits an electrical conductivity of 100% at 20°C in accordance with the International Annealed Copper Standard (IACS).

Copper purity is at least 99.9%, with total impurities, including oxygen and other trace elements, limited to a maximum of 0.1%.

Specifications:

ASTM B3 Soft or Annealed Copper Wire

ASTM B8 Concentric-Lay-Stranded Copper Conductors

Table 1 – Weights and Measurements

Stock Number	Cond. Size	Strand Class	Strand Count	Cond. Cmil	Cond. Number	Diameter Over Conductor	Approx. OD	Approx. Weight	DC Resistance @ 25°C	AC Resistance @ 75°C	Rated Strength
	AWG/kcmil		No. of Strands	cmil	No.	inch	inch	lb/1000ft	Ω/1000ft	Ω/1000ft	lb
471020	400	B	37	400000	1	0.705	0.705	1235	0.027	0.035	3200

All dimensions are nominal and subject to normal manufacturing tolerances

◊ Cable marked with this symbol is a standard stock item

TBA stock codes are estimations only and actual product may vary. Please wait until a stock code is assigned to purchase connectors and/or fittings.

Revision: 1.000.029

Updated On: Aug. 11, 2026, 3:15 p.m. UTC