Specifications
|
Model |
NKI-3KSAH2 |
NKI-3K6SAH2 |
NKI-4KSAH2 |
NKI-5KSAH2 |
NKI-6KSAH2 |
|
PV Input |
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Max. PV Input Power(kW) |
4.5 | 5.5 | 6 | 7.5 | 9 |
|
Max. PV Open Circuit Voltage(V) |
550 |
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|
MPPT Range@Operating Voltage(VDC) |
80~520 |
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|
Full Power MPPT Voltage Range(VDC) |
117-500V |
145-500V |
158-500V |
197-500V |
250-500V |
|
Start-up Voltage(VDC) |
90 | ||||
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Max. Input Current per MPPT(A) |
19/19 |
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|
Max. Short-circuit Current(A) |
25/25 |
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|
MPPT Tracker/Strings |
2 / 1 |
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Nominal Input Voltage(V) |
360 |
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|
AC Output(On Grid) |
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|
Nominal Output Power to Grid(kW) |
3 | 3.68 | 4 | 5 | 6 |
|
Max. Apparent Power to Grid(kVA) |
3 |
3.68 |
4 | 5 | 6 |
|
Max. Apparent Power from Grid(kVA) |
3 |
3.68 |
4 | 5 | 6 |
|
Max. Apparent Current from Grid(A) |
13.1 | 16 | 17.4 |
21.8 |
26.1 |
|
Nominal Output Current from Grid(A) |
13.1 | 16 |
17.4 |
21.8 |
26.1 |
|
Max. Output Current to Grid(A) |
13.1 | 16 |
17.4 |
21.8 |
26.1 |
|
Nominal Voltage/Frequency |
230V(176V~280V), 50/60Hz, L+N+PE |
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|
Adjustable Power Factor |
0.8leading~0.8lagging |
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|
THDI |
<2% |
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|
AC Output(BackUp) |
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|
Nominal Output Power(kW) |
3 |
3.68 | 4 | 5 | 6 |
|
Max. Apparent Power(kVA) |
3 |
3.68 | 4 | 5 | 6 |
|
Nominal Output Current(A) |
13.1 | 16 | 17.4 | 21.8 | 26.1 |
|
Max. Output Current(A) |
13.1 |
16 |
17.4 |
21.8 |
26.1 |
|
Nominal Voltage/Frequency |
230V(176V~238V), 50/60Hz, L+N+PE |
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|
Automatic Switch Time(ms) |
<20 |
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|
THDu |
<2% |
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|
Overload Capacity |
110%,10s /130%,3s /150%,50ms |
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|
Efficiency |
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|
Max. Efficiency |
96.65% |
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|
Europe Efficiency |
97.50% |
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|
MPPTEfficiency |
99.00% |
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|
Max. Batte Charge/DischargeEfficiency |
94.60% |
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|
Battery |
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|
Battery Voltage Range(V) |
40~60 |
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|
Recommended Batte Voltage(V) |
48 | ||||
|
Max. Charging Voltage(V) |
60 | ||||
|
Max. Charging/Discharging Current(A) |
80/80 |
80/80 |
80/80 |
120/120 |
120/120 |
|
Battery Type |
Lithium and Lead Acid Battery |
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|
Protection |
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|
DC Switch |
Yes |
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|
DC Reverse Polarity Protection |
Yes |
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DC/AC Surge Protection |
Type II/Type II |
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AC Overvoltage Protection |
Yes |
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AC Short-circuit Protection |
Yes |
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|
Ground Fault Monitoring |
Yes |
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Anti-islanding Protection |
Yes |
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|
Residual-current Monitoring |
Yes |
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|
Insulation Resistance Monitoring |
Yes |
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|
Peak/Valley Time Setting |
Yes |
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|
General Data |
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|
HMI |
LCD & APP |
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|
BMS |
RS485; CAN |
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|
EMS/Meter |
RS485 |
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Communication |
WiF/LAN |
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Ingress Protection |
IP66 |
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Operating Temperature Range |
-25~60℃ |
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Relative Humidity |
0~95%(Non-condensing) |
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Max. Operating Altitude |
4000m(Derating above 3000m) |
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|
Cooling |
Natural |
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|
Noise Emission |
≤29dB |
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Dimensions(W*H*D) |
485*525*225mm(without terminal and bracket) |
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|
Net Weight(kg) |
23.5 | 23.5 | 23.5 | 24 | 24 |
|
Self-consumption(W) |
<15 |
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|
Standard Compliance |
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|
Safety Regulation |
IEC/EN62109-1/-2 |
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|
EMC |
IEC/EN61000-6-1/-2/-3/-4 |
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|
Grid Regulation |
IEC61727; Europe: EN50549; Belgium: C10/11; Spain: NTS-631; Italy: CEI 021 |
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Advantages of NUUKOSingle Phase Hybrid lnverter NKI-3KS-AH2/NKI-3K6S-AH2/NKI-4KS-AH2/NKI-5KS-AH2/NKI-6KS-AH2
Wide MPPT Range:
Ensures efficient energy harvesting by optimizing power generation even under varying sunlight conditions.
Dual MPPT Trackers:
Supports multiple strings of solar panels, allowing for flexibility in system design and better performance in installations with shading or orientation differences.
Type II SPD on DC/AC:
Enhances safety by providing reliable surge protection for both DC and AC circuits, safeguarding the system against voltage spikes.
19A MPPT Input Current per String:
Supports high-current solar panels, enabling compatibility with modern high-power modules for increased energy output.
IP66 Protection Level:
Offers robust protection against dust and water ingress, ensuring reliable operation in various environmental conditions.
Integrated and Concise Design:
Combines functionality and aesthetics, simplifying installation and reducing space requirements.
Application scenarios of NUUKO Single Phase Hybrid lnverter NKI-3KS-AH2/NKI-3K6S-AH2/NKI-4KS-AH2/NKI-5KS-AH2/NKI-6KS-AH2
Residential Solar Systems:
Ideal for homeowners seeking efficient and safe solar solutions to power their homes and reduce energy costs.
Small Commercial Installations:
Suitable for small businesses needing a reliable and high-performing solar inverter for self-consumption and grid support.
Areas with Harsh Environments:
The IP66 rating ensures the inverter can operate effectively in locations with challenging weather conditions, such as coastal or desert regions.
Flexible Solar Array Configurations:
The dual MPPT trackers and wide MPPT range make it an excellent choice for installations with diverse panel orientations and shading conditions.
Smart Grid and Hybrid Systems:
Perfect for users integrating solar energy with storage solutions to achieve energy independence and backup power during outages.
This hybrid inverter is a versatile and reliable choice for modern solar energy applications, offering advanced features and robust performance.
