Retrofitting the Surge Arrester Type II

Qualified person

The inverter is equipped ex works with surge arresters or it can be retrofitted ( > Spare Parts and Accessories).

  1. DANGER

    Danger to life due to high voltages

    1. Disconnect the inverter from all voltage sources ( > Disconnecting the Inverter from Voltage Sources).
    2. Wait 20 minutes before you remove the DC protective cover to allow residual voltages to discharge.
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  2. Release the screws on the DC protective cover using an Allen key (AF 3), lift the DC protective cover upwards from below and remove it.
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  3. Plug the new surge arresters into the designated slots until they lock into place with the locking tabs. The inspection window must be located on the right-hand side.
  4. Position the DC protective cover at the upper edge, flip down and tighten it (torque: 3.5 Nm).
    <  Connecting the PV Array
    >  Commissioning