Sunfree Series
- 12 -
3.4 Datasheet
Sunfree 4K/5K specification sheet
MODEL
Sunfree 4K
Sunfree 5K
DC Input Data
Max. PV Array Power [W]
4200
5200
Maximum PV Array Open Circuit Voltage [v]
580
MPPT Range @ Operating Voltage [v]
90
～
550
Start Voltage [v]
120
Min. DC Voltage [v]
80
Max. DC Input Current PV1/PV2[A]
11 / 11
Number of DC Connection/MPPT Tracker
Number
2 / 2
DC Switch
Integrated
Battery Data
Battery Type
Li-ion battery / Lead-acid battery
Battery Voltage/Range of Voltage [v]
48 / 42
～
58
Maximum/Rated Charge Current [A]
50 / 50
Min. Battery Capacity [AH]
100
Charging Curve
3-Stage Adaptive With Maintenance / 3-Stage
Adaptive With Maintenance
Grid-Tie Operation
Rated Output Power [W]
3680
1
/ 4000
4600² / 5000
Rated Output Current [A]
16 / 17.4
20 / 21.7
Rated Grid voltage/Range [v]
220V
，
230V
，
240V / 180V
～
280V
Rated Grid Frequency / Range [Hz]
50Hz / 60 Hz ± 5 Hz
Power Factor
>0.99
Total Harmonic Distortion (THDi)
<3%
AC Output Data
Rated Output Power
3680
1
W/ 4000VA
4600²W/ 5000VA
AC Voltage Regulation [v]
230 ± 1%
Rated Output Frequency Regulation [Hz]
50 ± 0.02
Total Harmonic Distortion (THDi)
<5%
（
non-linear load
）；
<3%
（
Linear load
）
Overload
（
Batt. Mode
）
6000VA(150% 10s)
7500VA(150% 10s)
Overload
（
Grid. Mode
）
6000VA(150% 1min)
7500VA(150% 1min)
