Steca coolcept3 - Technical data; Inverter

8 Technical data
8.1
Inverter
8.1.1 StecaGrid 3203/3203x/4003/4003x
StecaGrid 3203/x StecaGrid 4003/x
DC input side (PV generator connection)
Number of DC inputs 1
Maximum start voltage 1000 V
Maximum input voltage 1000 V
Minimum input voltage for
feeding-in
250 V
Start input voltage 250 V
Rated input voltage 415 V 515 V
Minimum input voltage for rated
output
300 V 375 V
Number of MPP trackers 1
Operating input voltage range 250 ... 800 V
Maximum input current 11 A
Maximum short-circuit current +20 A/– 13 A
Rated input current 8 A
Max. current refeed to PV gener-
ator
0 A
Maximum input capacity at max-
imum output effective power
3,300 W 4,100 W
Nominal input power
(cos φ = 1)
3,300 W 4,100 W
Derating / power limiting occurs automatically when:
n input power > max. recommended PV power
n Cooling is inadequate
n Input current too high
n Output current too high
n Grid frequency too high (in accordance with country set-
ting)
n Limiting signal on external interface
n Output power limited (set on the inverter)
DC side (storage connection)
1)
Voltage 580 V ... 1000 V
Maximum current 10 A
EN
750.661 | Z03 | 2016-09-12 57