Operation and installation manual
Page 25 of 82
(PVI-10.0/12.5-OUTD-xx Rev:1.2)
3.5
Before performing the electrical connections
WARNING
: The electrical connections can be made only after AURORA
is firmly secured to the wall.
WARNING
: The connection of AURORA to the electrical distribution grid
must be performed by qualified operators and anyway only after receiving
authorization from the utility that operates the grid.
WARNING
: For a step-by-step description of the correct procedure, please
read - and closely follow - the instructions provided in this section (and its
subsections) and all safety warnings. Any operation non-complying with the
instructions below could lead to operator/installer hazards and to equipment
damage.
WARNING
: Always respect the nominal ratings of voltage and current
specified in section 8 (Technical Data) when designing your system. Please
observe these considerations when designing the photovoltaic field:
¾
Maximum DC voltage input to each MPPT circuit: 850 Vdc.
¾
Maximum DC current input to each MPPT circuit: 18 Adc under any
condition.
WARNING
: Check the National and local standard regulations to make
sure your electrical installation design is in compliance with them.
NOTE
: As shown in the standard assembly diagram (see Fig. 9), a
disconnect (thermal automatic cut-out) shall be installed on Ac output
section, in-between AURORA and the distribution grid. The features of such
a disconnect or automatic cut-out are 25 A and 440 V. It is possible to use a
three-pole device (if the inverter is in three wire reading mode) or a four-wire
device (if the inverter is in four wire reading mode).
