Product introduction
- Using IGBT from Mitsubishi company as the power components
- Using American ATEMEL company microprocessor as figure controller
- Perfect protection and warning functions
- Circuit frame compact, Max. Efficiency ≥ 90%
- With wide input voltage range
- RS232/485/WIFI/GPRS communication
- Tough screen English LCD, perfect display, interface-friendly
Touch screen display
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 and 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%, 5 minutes / 200%, 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 |
| Equipped with copper transformer |
Yes |
| Communication mode |
RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol) |
| Solar Charger / 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 and 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 (Load 0 ↔ 100%) |
2ms |
| Power factor (PF) |
1 |
| Overload capacity |
120%, 5 minutes / 200%, 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 |
Yes |
| Equipped with copper transformer |
Yes |
| Communication mode |
RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol) |
| Solar Charger / 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 and 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 (Load 0 ↔ 100%) |
2ms |
| Power factor (PF) |
1 |
| Overload capacity |
120%, 5 minutes / 200%, 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 |
| Equipped with copper transformer |
Yes |
| Communication mode |
RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol) |
| Solar Charger / AC Charger / Generator Port |
Optional, available |
| Size (mm) |
660*1300*1600mm |
| Weight (kg) |
360kg |
Technical parameters of three-phase off-grid inverter 40KW
| Type |
NB220-40KSZ |
NB240-40KSZ |
NB380-40KSZ |
| Input rated voltage |
220Vdc |
240Vdc |
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 and 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 (Load 0 ↔ 100%) |
2ms |
| Power factor (PF) |
1 |
| Overload capacity |
120%, 5 minutes / 200%, 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 |
Yes |
| Equipped with copper transformer |
Yes |
| Communication mode |
RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol) |
| AC Charger / 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*1600mm |
| Weight (kg) |
550kg |
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 and 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 (Load 0 ↔ 100%) |
2ms |
| Power factor (PF) |
1 |
| Overload capacity |
120%, 5 minutes / 200%, 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 |
Yes |
| Equipped with copper transformer |
Yes |
| Communication mode |
RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol) |
| AC Charger / 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*1600mm |
| Weight (kg) |
450kg |
Product application scenario
Factory Showroom & Exhibition
Frequently Asked Questions (FAQ)
What are the primary power components used in these three-phase off-grid inverters?
The system utilizes high-performance IGBT power components sourced from Mitsubishi, paired with an American ATEMEL microprocessor controller, ensuring robust reliability, high dynamic performance, and optimal electrical efficiency.
What is the efficiency rate and the output wave form of these inverters?
These three-phase off-grid inverters feature a pure sine wave output utilizing an integrated isolation transformer. They operate with a maximum efficiency greater than 94% (depending on the model) and a low total harmonic distortion (THD ≤ 3% for linear loads).
Are there options for solar charging and external generators?
Yes. Optional configurations are available for integrating solar chargers, AC chargers, and dedicated generator ports, making these units highly versatile for customized wind, solar, or hybrid energy storage setups.
What built-in protection functions are standard on these units?
Standard protection features include input reverse polarity protection, DC input under-voltage protection, AC output overload protection, output short-circuit protection, and over-temperature (thermal) protection.
What remote communication protocols and interfaces are supported?
The inverters support multiple communication options including RS485, Wi-Fi, GPRS, and Ethernet protocols (using Modbus RTU protocol). These can be monitored and managed directly using the touch screen English LCD controller interface.
Can the AC bypass transfer time be customized?
Yes. While standard transfer times are ≤40ms for the 10KW model and ≤100ms for larger models (20KW to 50KW), a fast transfer option of ≤4ms can be customized upon request to support sensitive equipment applications.
Demin Power
