44
45
8. Technical Parameters
Model
STH-4KTL
-HT
STH-5KTL
-HT
STH-6KTL
-HT
STH-8KTL
-HT
STH-
10KTL-HT
STH-
12KTL-HT
PV Input
Max. Input Power (W)
5,200
6,500
7,800
10,400
13,000
15,600
Start-up Voltage (V)
150
150
180
180
180
180
Max. DC Input Voltage (V)
1,000
1,000
1,000
1,000
1,000
1,000
Rated DC Input Voltage (V)
620
620
620
620
620
620
MPPT Voltage Range (V)
150-850
150-850
200-850
200-850
200-850
200-850
No. of MPP Trackers
2
2
2
2
2
2
No. of PV Inputs
1/1
1/1
1/1
1/1
1/1
1/1
Max. Input Current (A)
13/13
13/13
13/13
13/13
13/13
13/13
Max. Short-circuit Current (A)
18/18
18/18
18/18
18/18
18/18
18/18
Battery
Battery Type
Lithium Battery (with BMS)
Battery Communication Mode
CAN / RS485
Battery Voltage Range (V)
180-750
Max. Charge/Discharge Current (A)
25/25
Rated Current of Built-in Fuse (A)
63
Output(Grid)
Rated Output Power (kW)
4
5
6
8
10
12
Max. Output Power (kW)
4.4
5.5
6.6
8.8
11
13.2
Max. Apparent Power (kVA)
4.4
5.5
6.6
8.8
11
13.2
Max. Input Apparent Power (kVA)
8
①
10
①
12
①
16
①
16.5
①
16.5
①
Max. Charging Power of Battery (kW)
4
5
6
8
10
12
Rated Output Voltage (V)
3 / N / PE，230(400)
Rated AC Frequency (Hz)
50/60Hz 45-55Hz/55-65Hz
Max. Output Current (A)
6.7
8.3
10
13.3
16.5
20
Power Factor
0.8 leading …0.8 lagging
Max. Total Harmonic Distortion
<3% @Rated Output Power
DCI
<0.5%In
Output(Back-up)
UPS Switching Time
<10ms
Rated Output Voltage (V)
3/N/PE，230(400)
Rated AC Frequency (Hz)
50/60Hz 45-55Hz/55-65Hz
Max. Apparent Output Power (kVA)
4.4
5.5
6.6
8.8
11
13.2
Peak Overload Apparent Power (kVA)
8
②
，60s 10
②
，60s 12
②
，60s 16
②
，60s 20
②
，60s 20
②
，60s
Single-phase Peak Output Power(kVA)
1.6
③
2.1
③
2.6
③
3.3
③
4
③
5
③
Voltage Harmonic Distortion
<3% @Linear Load
Model
STH-4KTL
-HT
STH-5KTL
-HT
STH-6KTL
-HT
STH-8KTL
-HT
STH-
10KTL-HT
STH-
12KTL-HT
Efficiency
Max. Efficiency
98.1%
98.1%
98.1%
98.2%
98.2%
98.2%
European Efficiency
97.3%
97.3%
97.3%
97.4%
97.4%
97.4%
Max. Battery Charging Conversion Efficiency 97.2%
97.2%
97.2%
97.3%
97.3%
97.3%
Max. Battery Discharge Conversion Efficiency 97.2%
97.2%
97.2%
97.3%
97.3%
97.3%
Protection
DC Reverse Polarity Protection
Integrated
Battery Input Reverse Connection 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 Over-voltage Protection
Integrated
Overload Protection
Integrated
AC Short-circuit Protection
Integrated
General Data
Over Voltage Category
PV: Ⅱ；Main: Ⅲ
Dimensions (mm）
550W*410H*175D
Weight (KG)
26
28
Protection Degree
IP65
Self-consumption at Night (W)
<15
Topology
Transformer-less
Operating Temperature Range (° C)
-30~60
Relative Humidity
0~100%
Operating Altitude (m）
3000
Cooling
Natural Convection
Noise Level (dB)
<25
Display
OLED & LED
Communication
WiFi / LAN(Optional)
Compliance
IEC62109、IEC62116、VDE4105、VDE0126、AS4777、RD1699、
NBR16149、IEC61727、IEC60068、IEC61683、EN50549、EN61000
① Max apparent power from the grid means the maximum power imported from the utility grid used to satisfy the backup
loads and charge the battery.
② The output power will exceed the rated value only when the power in the PV array is sufficient, and the duration of the
overload is relating to the overload power.
③ Single-phase peak output power is the single-phase max output that won’t trigger overload protection, only 1 phase can
reach peak output power at the same time.
