Requirements on the AC cable to the inverter

  • Conductor type: copper wire

  • Permissible temperature: at least 90°C (194°F)

  • Conductor cross-section: 6 mm² to 16 mm² (10 AWG to 4 AWG)

  • The cross-section of the grounding conductor must not be smaller than the cross-section of the other conductors.

  • Insulation stripping length: 18 mm (0.7 in)

  • The conductors with regards to their ampacity, rated temperatures, operating conditions and power loss must be made in accordance with the local standards and the National Electrical Code® ANSI/NFPA 70. If the manufacturer (SMA Solar Technology AG) requires a higher conductor cross-section than the standard, the range of the manufacturer must be observed.

  • Information: In backup mode, the line must be rated for a current of 32 A (for SBSE3.8-US-50 / SBSE4.8-US-50 / SBSE5.8-US-50 / SBSE7.7-US-50) and 48 A (for SBSE9.6-US-50 / SBSE11.5-US-50).

    AC Cable Requirements for Connections to the Utility Grid
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