Connecting the external protective grounding

Depending on country-specific requirements, an additional protective grounding of the inverter is required to protect from touch current in case the grounding conductor fails at the terminal of the AC cable.

The inverter features a ground connection with 1 connection point for protective grounding (e.g. when using a grounding electrode).

The connection point is marked with the following symbol:

The required M5x12 screw with spring washer and washer is already installed on the inverter.

Additionally required material (not included in the scope of delivery):

  • 1 grounding cable

  • 1 ring terminal lug M5

Cable requirements:

  • Cross-section of grounding cable corresponds to the grounding conductor at the AC GRID terminal, but at least 2.5 mm2

Procedure:

  1. Strip the grounding cable insulation.
  2. Crimp the ring terminal lug to the cable.
    3. 16360848396
  3. Tighten the screw with washer and spring washer at the connection point for the additional grounding (TX30, tightening torque: 3 Nm).
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