Steca coolcept3 - Page 63

StecaGrid 4803x StecaGrid 5503x
Feeding phases Three-phase
Distortion factor (cos φ = 1) < 1 %
Power factor cos φ 0.8 capacitive ... 0.8 inductive
Characterization of the operating behaviour
Maximum efficiency 98.7 %
European efficiency 98.2 % 98.3 %
California efficiency 98.5 % 98.5 %
MPP efficiency > 99.7 % (static), > 99 % (dynamic)
Efficiency values (at 5 %, 10 %,
20 %, 25 %, 30 %, 50 %, 75 %,
100 % of the rated power) at rated
voltage
92.8 %, 96.2 %, 97.9 %,
98.2 %, 98.4 %, 98.7 %,
98.6 %, 98.4 %
92.9 %, 95.8 %, 97.7 %,
98 %, 98.2 %, 98.5 %,
98.4 %, 98.2 %
Efficiency values (at 5 %, 10 %,
20 %, 25 %, 30 %, 50 %, 75 %,
100 % of the rated power) at min-
imum MPP voltage
87.8 %, 94.2 %, 96.8 %,
97.3 %, 97.6 %, 97.9 %,
97.8 %, 97.7 %
90.2 %, 95.1 %, 97.3 %,
97.6 %, 97.8 %, 98.2 %,
98.1 %, 97.7 %
Efficiency values (at 5 %, 10 %,
20 %, 25 %, 30 %, 50 %, 75 %,
100 % of the rated power) at max-
imum MPP voltage
89.6 %, 94.5 %, 97 %,
97.4 %, 97.7 %, 98.3 %,
98.4 %, 98.2 %
90.5 %, 95.1 %, 97.2 %,
97.6 %, 97.8 %, 98.2 %,
98.2 %, 98 %
Efficiency reduction in the case of a
rise in ambient temperature (at
temperatures > 40 °C)
0.005 %/°C
Efficiency change in the case of
deviation from the DC rated
voltage
0.002 %/V
Own consumption < 8 W
Power reduction at full power from 50 °C (T
amb
)
Switch-on power 10 W
Switch-off power 8 W
Safety
Protection class II
Separation principle No electrical isolation, transformer-less
Grid monitoring yes, integrated
Insulation monitoring yes, integrated
Fault current monitoring
yes, integrated
2)
EN
750.661 | Z03 | 2016-09-12 63