ACAR is composed out of 1350-H19 aluminum wires surrounding a aluminum alloy 6201-T81 core. Some of the constructions include alternate wires (1350-H19 and alloy 6201-T81) in the same layer.

Conductor Properties:
ACAR has moderate breaking load (Higher than AAC and lower than ACSR).
ACAR has good corrosion resistance (no steel wires).
ACAR has high conductivity when compared to ACSR and AAAC.
ACAR is recommended for use as a transmission cable between the power station and substations, and as primary and secondary distribution cable.
Moseroth ACAR meets or exceeds the following ASTM specifications:
• B-230 Aluminum Wire, 1350-H19 for Electrical Purposes.
• B-398 Aluminum-Alloy 6201-T81 for Electrical Purposes.
• B-524 Concentric-Lay-Stranded Aluminum Conductors, Aluminum Alloy Reinforced ACAR, 1350/6201.