32
33
8. Technical Parameters
Model
STT-
4KTL
STT-
5KTL
STT-
6KTL
STT-
8KTL
STT-
10KTL
STT-
12KTL
STT-
15KTL
STT-
17KTL
STT-
20KTL
STT-
25KTL
DC Input
Start-up Voltage (V)
200
200
200
200
200
200
200
200
200
200
Max. DC Input Voltage (V)
1,100
1,100
1,100
1,100
1,100
1,100
1,100
1,100
1,100
1,100
Min. DC Voltage (V)
150
150
150
150
150
150
150
150
150
150
Rated DC Input Voltage (V)
620
620
620
620
620
620
620
620
620
620
MPPT Voltage Range (V)
200~950
Full power MPPT Voltage Range (V)
200
~850
240
~850
280
~850
370
~850
470
~850
560
~850
470
~850
400
~850
470
~850
585
~850
No. of MPP Trackers
2
2
2
2
2
2
2
2
2
2
No. of DC Inputs per MPPT
1/1
1/1
1/1
1/1
1/1
1/1
1/2
2/2
2/2
2/2
Max. Input Current (A)
11/11
11/11
11/11
11/11
11/11
11/11
11/22
22/22
22/22
22/22
Max. Short-circuit Current (A)
15/15
15/15
15/15
15/15
15/15
15/15
15/30
30/30
30/30
30/30
Backfeed current to the array (A)
0
0
0
0
0
0
0
0
0
0
AC Output
Rated Output Power (KW)
4
5
6
8
10
12
15
17
20
25
Max. Output Power (KW)
4.4
5.5
6.6
8.8
11
13.2
16.5
18.7
22
25
AC output rated apparent
power (KVA)
4
5
6
8
10
12
15
17
20
25
Max. Apparent Power (KVA)
4.4
5.5
6.6
8.8
11
13.2
16.5
18.7
22
25
Rated Output Voltage (V)
3L/N/PE, 230/400V
Rated AC Frequency (Hz)
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
AC output rated current (A)
5.8
7.3
8.7
11.6
14.5
17.4
21.7
24.6
29
36.2
Max. Output Current (A)
6.7
8.4
10
13.3
16.5
20
25
28.4
31.9
39
The measured Inrush current (A)
7A@4.4ms
7A@4ms
8.5A@4ms
Max. output fault current (A)
33
33
33
33
40
40
66
66
76
76
Max. output overcurrent
protection (A)
33
33
33
33
40
40
66
66
76
76
Power Factor
0.8 leading …0.8 lagging
Max. total harmonic distortion
< 3% @Rated Output Power
DCI
< 0.5%In
Model
STT-
4KTL
STT-
5KTL
STT-
6KTL
STT-
8KTL
STT-
10KTL
STT-
12KTL
STT-
15KTL
STT-
17KTL
STT-
20KTL
STT-
25KTL
Efficiency
Max. Efficiency
98.1% 98.1% 98.3% 98.3% 98.6% 98.6% 98.6% 98.6% 98.6% 98.6%
European Efficiency
97.9% 97.9% 98.0% 98.0% 98.2% 98.2% 98.2% 98.2% 98.2% 98.2%
MPPT Efficiency
99.9% 99.9% 99.9% 99.9% 99.9% 99.9% 99.9% 99.9% 99.9% 99.9%
Protection
DC Reverse Polarity Protection
Integrated
Insulation Resistance Protection
Integrated
DC Switch
Optional
Surge Protection
Integrated (TypeⅡ )
Over-temperature Protection
Integrated
Residual Current Protection
Integrated
Islanding protection
Frequency shift, Integrated
AC Short-circuit Protection
Integrated
AC Over-voltage Protection
Integrated
General Data
Dimensions (mm)
550W*410H*175D
Weight (kg)
22
25
Protection Degree
IP65
Self-consumption at Night (W)
< 1
Topology
Transformerless
Operating Temperature Range (° C)
-30~60
Relative Humidity
0~100%
Operating Altitude (m)
3000
Cooling
Natural Convection
Smart Fan Cooling
Noise Level (dB)
< 25
< 40
Display
OLED & LED
Communication
RS485, WiFi/ GPRS/LAN (Optional)
Compliance
NB/T32004、IEC62109、IEC62116、VDE4105、VDE0126、UTE C15-712-1、
AS4777、C10/11、CEI0-21、RD1699、NBR16149、IEC61727、IEC60068、
IEC61683、EN50549、EN61000
