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3.4 Electrical Connection
Connections must be made in compliance with local
regulations and the requirements of local power
authorities/companies.
In accordance with VDE0126-1-1/A1, the inverter incorporates
a Residual Current Monitoring Unit (RCMU) which monitors
residual current from the solar module to the grid side of the
inverter. The inverter can automatically differentiate between
fault current and normal capacitive leakage currents.
3.4.1 Connection to grid (AC side Connection)
A Check the grid (utility) voltage and frequency at the
connection point of the inverter. It should be 230VAC (or
220VAC), 50/60Hz, and single phase.
B Disconnect the breaker or fuse between the PV-inverter
and the utility.
C Connect the inverter to the grid as follows:
` Switch off the AC breaker.
` Disassemble the female connector of the AC wire
connector and connect the AC wires to the connection
socket as indicated.
Figure 3.4.1-1
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