User’s Guide
THEIA S String Inverters
357100.013
, Issue
2.0
, 2010 Aug
11
Connecting the Inverter
Danger to life due to high AC voltage!
•
Switch off the mains power supply (AC side, fuse) before connecting the
inverter.
Danger
Danger to life due to high AC voltage!
•
Verify that galvanic isolation between the photovoltaic generator circuit
and the AC circuit is maintained by the way the cables are run.
Danger
Danger to life due to high DC voltage!
•
Prior to connecting the inverter, verify that voltage is applied to the
generator-side DC terminal
•
Prior to connecting the inverter, verify that the DC voltage polarity is
correct
•
Wear insulating protective clothing and face protection if there is voltage
present at the DC input
•
Remove DC cable exclusively when inverter is out of operation
Danger
Lack of performance and functionality due to inappropriate cables!
•
Ensure that wire cross sections and fuses conform to VDE 100 Part 430,
or the equivalent local standard.
•
Ensure that any network cables between two inverters are no longer than
30m
•
For DC cables, use a wire cross section of at least 2.5mm
2
•
Ensure that the AC cable resistance does not exceed 0.5
Ω
Caution
Material damage due to excessive voltage!
•
Ensure that the max. DC voltage is not exceeded (see
Chapter 13
Technical Data
)
•
Connect exclusively safety extra low voltage (SELV) on the contacts of
the external indicator
Caution
