7 Installation
Preparing electrical installation
60
Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14
7.6 Preparing electrical installation
There is normally an isolating switch (for example
in an equipment wiring box) between the inverter
and the grid connection box and between the
inverter and the solar modules. This isolates the
inverter from all the AC and DC voltage sources
and renders it de-energized.
1. To ensure that no voltage can be applied to the inverter
during installation work, open the isolating switches
between the inverter and the grid connection point and
between the inverter and the solar modules.
Secure all the isolating switches to prevent them from be-
ing switched back on accidentally.
2. Turn both DC disconnectores to the OFF position.
3. Remove the Allen key from the upper door lock.
4. Unscrew and open the upper door lock cover.
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