Connecting energy meter

The energy meter is installed on a top-hat rail in the meter box or the main distributor.

IMPORTANT INFORMATION

Info

Only energy meters which have been approved for the inverter by KOSTAL Solar Electric may be used.

You will find an up-to-date list of approved energy meters in the download area for the product on our website.

The energy meter can be fitted in 2 positions in the house network (position 1 = home consumption, position 2 = grid connection point). Both installation positions are possible, but position 2 is preferable. The installation position is queried and set in the installation wizard or can be set in the Webserver.

The diagram only provides one example because the connections may differ depending on the energy meter used.

  1. De-energise the house grid.

  2. DANGER

    danger

    Risk of death due to electrical shock and discharge!

    De-energise device and secure against being switched on again. De-energising the inverter

  3. Fit the energy meter on the top-hat rail in the control cabinet or power distributor.
  4. Correctly route the communication cable from the inverter to the control cabinet and connect to the energy meter following the wiring diagram provided by the manufacturer.

  5. INFO

    Info

    The communication cable is subject to the following requirements:

    Conductor cross-section from 0.2 to 1.5 mm2

    Max. length 30 m

    Length of stripped insulation 8 mm

    Observe the specifications for cable cross-sections in the instructions for the energy meter.

  6. Connect communication cable in inverter to terminal for energy meter.

  1. 1

    Terminal for energy meter (Modbus RTU)

    2

    Communication cable to energy meter

    3

    Sealing ring

    4

    Union nut

  2. The energy meter is connected.

The type of energy meter used is selected when the inverter is first installed or can be set using the inverter menu or Webserver.