Grounding cable requirements
An additional grounding of the battery modules is required to protect from touch current in case the grounding conductor fails at the terminal of the DC cable.
The supplied grounding cables for the connection between the battery modules must be used.
If the length of the supplied grounding cables is not sufficient, longer grounding cables must be used with a cross-section of 6 mm² and the supplied terminal lugs.
To connect the additional grounding via an external grounding point, a ring terminal lug must be used.