Product Parameter
Technical Parameters of Three-Phase Off-Grid Inverter 10KW
Type
NB48-10KSZ
NB96-10KSZ
NB120-10KSZ
NB240-10KSZ
Input Rated Voltage
48 VDC
96 VDC
120 VDC
240 VDC
Input Rated Current
231 A
116 A
93 A
46 A
Input DC Voltage Range
40-62 VDC
80-124 VDC
100-155 VDC
200-310 VDC
Allow Input Voltage Range
220 VAC / 380 VAC / 400 VAC ± 15%
Input Rated Current
28A / 15A / 14.5A
Bypass Transfer Time
≤ 40ms (Can be customized ≤ 4ms version)
Output Rated Power
10KW
Output Rated Voltage & Frequency
220 VAC / 380 VAC / 400 VAC, 50Hz / 60Hz
Output Rated Current
28A / 15A / 14.5A
Output Voltage Accuracy
220 VAC / 380 VAC / 400 VAC ± 1%
Output Frequency Accuracy
50Hz / 60Hz ± 0.05%
Wave Form
Pure sine wave (Isolation transformer)
THD
≤ 3% (Linear load)
Power Factor (PF)
1
Overload Capacity
120% for 5 minutes, 200% for 3 seconds
Crest Factor (CF)
3:1
Inverter Efficiency
> 94%
Dielectric Strength
1500VAC, 1 minute
Noise (1m)
≤ 50dB
Ambient Temperature
-20℃ ~ +60℃
Humidity
0 ~ 90%, No condensation
Altitude
< 2000m (Higher than 2000m rated power should be reduced)
Protection Function
Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection
Pure Sine Wave
Yes
Copper Transformer
Yes
Communication Mode
RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol)
Solar / AC Charger / Generator Port
Optional, available
Size (mm)
450 × 830 × 1100 mm
Weight (kg)
180 kg
Technical Parameters of Three-Phase Off-Grid Inverter 20KW
Type
NB48-20KSZ
NB96-20KSZ
NB120-20KSZ
NB240-20KSZ
Input Rated Voltage
48 VDC
96 VDC
120 VDC
240 VDC
Input Rated Current
463 A
231 A
185 A
93 A
Input DC Voltage Range
40-62 VDC
80-124 VDC
100-155 VDC
200-310 VDC
Allow Input Voltage Range
220 VAC / 380 VAC / 400 VAC ± 15%
Input Rated Current
55.5A / 30A / 29A
Bypass Transfer Time
≤ 100ms (Can be customized ≤ 4ms version)
Output Rated Power
20KW
Output Rated Voltage & Frequency
220 VAC / 380 VAC / 400 VAC, 50Hz / 60Hz
Output Rated Current
55.5A / 30A / 29A
Output Voltage Accuracy
220 VAC / 380 VAC / 400 VAC ± 2%
Output Frequency Accuracy
50Hz / 60Hz ± 0.05%
Waveform Distortion (THD)
≤ 3% (Linear load)
Dynamic Response Time
2ms (Load 0 ↔ 100%)
Power Factor (PF)
1
Overload Capacity
120% for 5 minutes, 200% for 3 seconds
Crest Factor (CF)
3:1
Inverter Efficiency
94%
Dielectric Strength
1500VAC, 1 minute
Noise (1m)
≤ 50dB
Ambient Temperature
-20℃ ~ +60℃
Humidity
0 ~ 90%, No condensation
Altitude
< 6000m (Higher than 2000m rated power should be reduced)
Protection Function
Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection
Pure Sine Wave / Copper Transformer
Yes
Communication Mode
RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol)
Solar / AC Charger / Generator Port
Optional, available
Size (mm)
520 × 1160 × 1350 mm
Weight (kg)
280 kg
Technical Parameters of Three-Phase Off-Grid Inverter 30KW
Type
NB120-30KSZ
NB240-30KSZ
NB380-30KSZ
Input Rated Voltage
120 VDC
240 VDC
380 VDC
Input Rated Current
278 A
139 A
88 A
Input DC Voltage Range
100-155 VDC
200-310 VDC
320-496 VDC
Allow Input Voltage Range
220 VAC / 380 VAC / 400 VAC ± 15%
Input Rated Current
83A / 45.5A / 43.5 A
Bypass Transfer Time
≤ 100ms (Can be customized ≤ 4ms version)
Output Rated Power
30KW
Output Rated Voltage & Frequency
220 VAC / 380 VAC / 400 VAC, 50Hz / 60Hz
Output Rated Current
83A / 45.5A / 43.5 A
Output Voltage Accuracy
220 VAC / 380 VAC / 400 VAC ± 1%
Output Frequency Accuracy
50Hz / 60Hz ± 0.05%
Waveform Distortion (THD)
≤ 3% (Linear load)
Dynamic Response Time
2ms (Load 0 ↔ 100%)
Power Factor (PF)
1
Overload Capacity
120% for 5 minutes, 200% for 3 seconds
Crest Factor (CF)
3:1
Inverter Efficiency
94%
Dielectric Strength
1500VAC, 1 minute
Noise (1m)
≤ 50dB
Ambient Temperature
-20℃ ~ +60℃
Humidity
0 ~ 90%, No condensation
Altitude
< 2000m (Higher than 2000m rated power should be reduced)
Protection Function
Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection
Pure Sine Wave / Copper Transformer
Yes
Communication Mode
RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol)
Solar / AC Charger / Generator Port
Optional, available
Size (mm)
660 * 1300 * 1600 mm
Weight (kg)
360 kg
Technical Parameters of Three-Phase Off-Grid Inverter 40KW
Type
NB220-40KSZ
NB240-40KSZ
NB380-40KSZ
Input Rated Voltage
220 VDC
240 VDC
380 VDC
Input Rated Current
202 A
185 A
117 A
Input DC Voltage Range
180-279 VDC
200-310 VDC
320-496 VDC
Allow Input Voltage Range
220 VAC / 380 VAC / 400 VAC ± 15%
Input Rated Current
111.2A / 60.8A / 58A
Bypass Transfer Time
≤ 100ms (Can be customized ≤ 4ms version)
Output Rated Power
40KW
Output Rated Voltage & Frequency
220 VAC / 380 VAC / 400 VAC, 50Hz / 60Hz
Output Rated Current
111.2A / 60.8A / 58A
Output Voltage Accuracy
220 VAC / 380 VAC / 400 VAC ± 1%
Output Frequency Accuracy
50Hz / 60Hz ± 0.05%
Waveform Distortion (THD)
≤ 3% (Linear load)
Dynamic Response Time
2ms (Load 0 ↔ 100%)
Power Factor (PF)
1
Overload Capacity
120% for 5 minutes, 200% for 3 seconds
Crest Factor (CF)
3:1
Inverter Efficiency
94%
Dielectric Strength
1500VAC, 1 minute
Noise (1m)
≤ 50dB
Ambient Temperature
-20℃ ~ +60℃
Humidity
0 ~ 90%, No condensation
Altitude
< 6000m (Higher than 2000m rated power should be reduced)
Pure Sine Wave / Copper Transformer
Yes
Communication Mode
RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol)
AC / Solar Charger / Generator Port
Optional
Protection Function
Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection
Size (mm)
760 * 1400 * 1600 mm
Weight (kg)
550 kg
Technical Parameters of Three-Phase Off-Grid Inverter 50KW
Type
NB480-50KSZ
NB380-50KSZ
Input Rated Voltage
480 VDC
380 VDC
Input Rated Current
115 A
146 A
Input DC Voltage Range
400-620 VDC
320-496 VDC
Allow Input Voltage Range
220 VAC / 380 VAC / 400 VAC ± 15%
Input Rated Current
139A / 76A / 72.5A
Bypass Transfer Time
≤ 100ms (Can be customized ≤ 4ms version)
Output Rated Power
50KW
Output Rated Voltage & Frequency
220 VAC / 380 VAC / 400 VAC, 50Hz / 60Hz
Output Rated Current
139A / 76A / 72.5A
Output Voltage Accuracy
220 VAC / 380 VAC / 400 VAC ± 1%
Output Frequency Accuracy
50Hz / 60Hz ± 0.05%
Waveform Distortion (THD) (Linear load)
≤ 3%
Dynamic Response Time
2ms (Load 0 ↔ 100%)
Power Factor (PF)
1
Overload Capacity
120% for 5 minutes, 200% for 3 seconds
Crest Factor (CF)
3:1
Inverter Efficiency
94%
Dielectric Strength
1500VAC, 1 minute
Noise (1m)
≤ 50dB
Ambient Temperature
-20℃ ~ +60℃
Humidity
0 ~ 90%, No condensation
Altitude
< 2000m (Higher than 2000m rated power should be reduced)
Pure Sine Wave / Copper Transformer / Communication
Yes (RS485, Wifi, GPRS, Ethernet Modbus RTU)
AC / Solar Charger / Generator Port
Optional
Protection Function
Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection
Size (mm)
660 * 1300 * 1600 mm
Weight (kg)
450 kg
Frequently Asked Questions (FAQ)
What are the main power components used in these three-phase off-grid inverters?
These inverters utilize high-performance IGBT modules from Mitsubishi company as the main power components, ensuring high efficiency, stability, and long-term durability.
What control technology is implemented in these inverters?
The system employs microprocessors from the American ATEMEL company as figure controllers, enabling precise control, fast response, and comprehensive system monitoring.
What communication protocols and interfaces are supported?
The inverters support RS485, Wifi, GPRS, and Ethernet communication modes utilizing the standard Modbus RTU protocol, making it easy to integrate with external monitoring systems.
What built-in protection features do these off-grid inverters have?
They are equipped with a full suite of protection functions, including DC input reverse polarity protection, input under-voltage protection, AC output overload protection, output short circuit protection, and thermal protection.
Can these inverters charge the batteries from solar panels or AC power sources?
Yes, these inverters offer optional support for Solar Chargers (MPPT controller built-in or external), AC Chargers, and Generator Ports to accommodate customized hybrid power setups.
Demin Power
