Installation and Operating Instructions V01
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5 Electrical connection
5.1 Safety
Risk of injury due to electric shock
• The external protective grounding conductor is connected to the inverter’s protective
grounding terminal through the AC connector. Make sure the connection is reliable.
•When connecting,
connect the AC connector first to ensure the inverter grounding reliably
and then connect the DC inputs.
• When disconnecting, disconnect the DC inputs first and then disconnect the AC connector
• Don’t connect the DC inputs while the AC connector is disconnected under any
circumstances.
• All electrical installations must be done in accordance with the National Wiring Rules
Standards and Local Code.
Danger to life due to high voltages of the PV array
When exposed to sunlight, the PV array generates dangerous DC voltage which is present in
the DC conductors and the live components of the inverter. Touching the DC conductors or
the live components can lead to lethal electric shocks. If you disconnect the DC connectors
from the inverter under load, an electric arc may occur leading to electric shock and burns.
• Do not touch non-insulated cable ends.
• Do not touch the DC conductors.
• Do not touch any live components of the inverter.
• Have the inverter mounted, installed and commissioned only by qualified persons with the
appropriate skills.
• If an error occurs, have it rectified by qualified persons only.
• Prior to performing any work on the inverter, disconnect it from all voltage sources as
described in chapter 8.