AC cable requirements

  • Conductor type: copper wire

  • The conductors must be solid or fine-stranded. When using fine-stranded wire, bootlace ferrules can be used.

  • Outer diameter: 14 mm to 25 mm

  • Conductor cross-section of grounding conductor: 2.5 mm² to 10 mm² (rigid) / 2.5 mm² to 6 mm² (flexible)

  • Conductor cross-section of line conductor and neutral conductor: 2.5 mm² to 10 mm² (rigid) / 2.5 mm² to 6 mm² (flexible)

  • Insulation stripping length: 18 mm to 20 mm

  • Sheath stripping length: about 100 mm

  • The cable and conductor cross-sections must always be dimensioned according to the local and national directives and within the range specified by the manufacturer (SMA Solar Technology AG)." If the manufacturer (SMA Solar Technology AG) requires a higher conductor cross-section than the standard, the range of the manufacturer must be observed. Examples of factors influencing cable dimensioning are: nominal AC current, type of cable, routing method, cable bundling, ambient temperature and maximum desired line losses (for calculation of line losses, see the design software "Sunny Design" from software version 2.0 at www.SMA-Solar.com).

    Overvoltage category
    Network cable requirements