Safety 13
Intended use
The inverter can only be used as part of a photovoltaic (PV) system when it is
permanently connected to the electrical grid.
Safety during installation and maintenance
These warnings are intended for everyone who works with the inverter, its input and
output cabling, or the associated solar array(s).
Perform installation and maintenance work in accordance with the instructions in this
manual, and with applicable regulations and standards in the installation country or
region.
Electrical safety
WARNING! Ignoring the following instructions can cause physical injury or
death, or damage to the equipment.
Only qualified electricians are allowed to install and connect the PVS300
inverter!
Electrical safety rules for electricians
• Comply with all relevant electrical safety regulations of the installation country or
region.
• Notice that the inverter is connected to two high voltage power sources:
- the solar arrays at the DC connectors
- the public electrical grid at the AC connector
• Never perform solar array or inverter installation or cabling work while the inverter
is connected to the electrical grid or to the solar arrays.
• Never work on control cabling while the inverter or external control circuits are
connected to power sources. Dangerous voltages (115 or 230 V) can exist on
external control circuits connected to the relay output terminals even when the
inverter is isolated from the solar arrays and electrical grid.
• Never perform insulation resistance tests or voltage withstand tests on the
inverter.
• Never open the secondary cover of the inverter. Dangerous voltages may be
present inside.
• Isolate the inverter from all power sources before working on it.
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