User Manual 6 Electrical Connection
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The country-specific power grid frequency should be taken into account at all
times.
The country-specific standards and directives should be taken into account at all
times.
6.2.2 Grid Connection
AC terminal block is on the bottom of the inverter. AC connection is the
3-phase-5-wire grid connection (L1, L2, L3, N and PE).
AC Cable Requirements
Select AC cables according to the following factors:
Grid impedance corresponds to the specifications below to avoid accidental
short-circuit or output power derating.
Considering the voltage drop and other conditions, please enlarge the cable
dimension. Power loss of the cable should be less than 1% of the nominal power.
Withstand ambient temperature.
Cable layout (inside wall, underground, free air, etc.)
UV resistance and so on.
Connecting Inverter to Grid
High voltage inside the inverter!
Ensure all cables are voltage-free before electrical connection.
Do not connect the AC circuit breaker until all inverter electrical connections
are completed.
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