Connecting the power cable of the battery

Qualified person

If there are several inverters and only one battery in the system, the battery should be connected to the inverter that is to be configured as the System Manager.

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

  • 1 conduit (trade size: 19.05 mm (0.75 in) or smaller with suitable reducer bush)

  • Sealing compound for sealing the join between the conduit and inverter if a weep hole has been added to the conduit

  • 1 rain-tight conduit fitting or conduit fitting for wet locations complying with UL 514B (trade size: 19.05 mm (0.75 in) or smaller with suitable reducing bush)

Requirement:

  • The battery power cables must be pre-assembled.

Procedure:

  1. Disconnect the inverter from all voltage sources .
  2. Ensure that the battery is switched off.
  3. Remove the filler plug from the third enclosure opening from the left.
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  4. Insert the conduit fitting in the third enclosure opening from the left and tighten with the counter nut from the inside.
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  5. Run the battery power cables through the conduit into the inverter.
  6. Attach the conduit to the conduit fitting.
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  7. Connect the battery power cables to the terminals for the battery connection according to the labels. To do so, insert a flathead screwdriver into the top opening of the terminal and insert the cable into the bottom opening. Then remove the screwdriver.
  8. Tug lightly to ensure that the cables are secured in the terminals.
  9. If a weep hole has been added to the conduit, seal the conduit with sealing compound.

    Also see:

    Connecting the PV Array
    Connecting Additional Grounding