EN
7
Technical data
Parameter
Value
StecaGrid 8000 3ph
StecaGrid 10000 3ph
DC input side (PV generator connection)
Number of DC inputs
3
5
Maximum start voltage
845 V
Maximum input voltage (V
dcmax
)
845 V
Minimum input voltage (V
dcmin
)
350 V
Rated input voltage (V
dc,r
)
600 V
Minimum input voltage for rated output
350 V
MPP voltage (V
mppmin
… V
mppmax
)
350 V … 700 V
Maximum input current (I
dcmax
)
27 A
32 A
Rated input current
14 A
16.7 A
Maximum input power
9,250 W
10,800 W
Rated input power
8,400 W
10,000 W
Recommended maximum PV output
10,500 Wp
12,500 Wp
Derating / restriction
automatic when:
• input power is higher
• the device is not cooled sufficiently
• input currents > 27 A
automatic when:
• input power is higher
• the device is not cooled sufficiently
• input currents > 32 A
Higher currents are restricted by the inverter and therefore will not damage it.
AC output side (mains grid connection)
Output voltage (V
acmin
… V
acmax
)
320 V … 480 V [depending on the regional settings]
Rated output voltage (V
ac,r
)
400 V
Maximum output current (I
acmax
)
15 A
Rated output current
11.6 A
13.7 A
Maximum output power
8,800 W
10,300 W
10,000 W (Belgium only; see table of
countries)
Rated output (P
ac,r
)
8,000 W
9,500 W
Rated frequency (f
r
)
50 Hz
Grid frequency (f
min
… f
max
)
47.5 Hz ... 52 Hz [depending on the regional settings]
Power losses in nighttime operation
< 1.6 W
Feeding phases
three-phase
Distortion factor
< 4% (max. output)
Characterisation of the operating behaviour
Maximum efficiency
96.3%
European efficiency (
η
EU
)
95.2%
95.4%
MPP efficiency
> 99%
Operating efficiency (at 5 %, 10 %, 20 %,
25 %, 30 %, 50 %, 75 %, 100 % of rated
power) at minimum MPP voltage
84.4 %, 91.8 %, 94.5 %, 95 %, 95.1 %,
95.6 %, 94.7 %, 94.3 %
88.3 %, 93.2 %, 95 %, 95.2 %, 95.3 %,
95.6 %, 94.8 %, 94.3 %
Operating efficiency (at 5 %, 10 %, 20 %,
25 %, 30 %, 50 %, 75 %, 100 % of rated
power) at maximum MPP voltage
74.1 %, 92.7 %, 94.8 %, 95.5 %, 95.7 %,
96.2 %, 95.8 %, 95.3 %
77.2 %, 94.1 %, 95.3 %, 95.7 %, 95.9 %,
96.2 %, 95.9 %, 95.3 %
Efficiency reduction in the case of devia-
tion from the DC rated voltage
–0.0025% / V
Power derating at full power
from +50 °C (T
amb
)
Switch-on power
20 W
Switch-off power
40 W
Standby power
9 W
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737.096 | 11.37