The American AWG wire standard and the European standard (usually referring to IEC or DIN) wire standard mainly focus on measurement units and specification systems. The American standard uses AWG (American Wire Gauge) to represent wire diameter, while the European standard commonly uses millimeter square (mm ²) to represent the cross-sectional area of a conductor. In addition, there may be differences between the two in terms of materials, insulation types, and performance requirements.
Using THHN wire as an example to explain the relationship between the conductors of the two
12 awg thhn is 2.08mm ²
10 awg thhn is 3.28mm ²
The 8th THN wire is 5.26mm ²
6 awg thhn is 13.3mm ²
14 awg thhn is 2.08mm ²
The following picture is a comparison table between American standard wires and European standard wires, which can be converted according to specifications























