Connecting the Grounding
Qualified person
An additional 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 2 connection points for grounding (e.g., when using a grounding busbar).
The connection points have been labeled with the following symbol: 
The required M5x12 screw with spring washer and washer is included in the scope of delivery of 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, at least 2.5 mm²
Procedure:
- Strip the insulation of the grounding cable. Attach the ring terminal lug to the stripped wire using the required crimping tool.
- Tighten the screw with washer and spring washer at one of the two connection points for the additional grounding (PH2, torque: 1.5 Nm).
