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% VAC |
| 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°C ~ +60°C |
| Humidity |
0~90%, No condensation |
| Altitude |
< 2000m (Higher than 2000m rated power should be reduced) |
| Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection |
| Yes |
| Yes |
| RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol) |
| Optional, available |
| Optional, available |
| Optional, available |
| 450 × 830 × 1100 mm |
| 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% VAC |
| 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°C ~ +60°C |
| Humidity |
0~90%, No condensation |
| Altitude |
< 6000m (Higher than 2000m rated power should be reduced) |
| Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection |
| Yes |
| Yes |
| RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol) |
| Optional, available |
| Optional, available |
| Optional, available |
| 520 × 1160 × 1350 mm |
| 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% VAC |
| Input rated current |
83A / 45.5A / 43.5A |
| 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 / 43.5A |
| 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°C ~ +60°C |
| Humidity |
0~90%, No condensation |
| Altitude |
< 2000m (Higher than 2000m rated power should be reduced) |
| Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection |
| Yes |
| Yes |
| RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol) |
| Optional, available |
| Optional, available |
| Optional, available |
| 660 * 1300 * 1600 mm |
| 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% VAC |
| 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°C ~ +60°C |
| Humidity |
0~90%, No condensation |
| Altitude |
< 6000m (Higher than 2000m rated power should be reduced) |
| Yes |
| Yes |
| RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol) |
| Optional |
| Optional |
| Optional |
| Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection |
| 760 * 1400 * 1600 mm |
| 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% VAC |
| 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°C ~ +60°C |
| Humidity |
0~90%, No condensation |
| Altitude |
< 2000m (Higher than 2000m rated power should be reduced) |
| Yes |
| Yes |
| RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol) |
| Optional |
| Optional |
| Optional |
| Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection |
| 660 * 1300 * 1600 mm |
| 450 kg |
Frequently Asked Questions
What core power components are used in these three-phase off-grid inverters?
The inverters feature highly reliable IGBT modules from Mitsubishi company as the main power components, paired with an American ATEMEL microprocessor controller to guarantee precise performance and maximum stability.
What protection and safety features do these inverters have?
These units are built with full self-protection systems, including input reverse polarity protection, input under-voltage protection, output overload protection, output short circuit protection, and over-temperature (thermal) protection.
Do the inverters support remote monitoring and communication protocols?
Yes, they fully support Modbus RTU protocol communication and can be connected using various modules, including RS485, Wifi, GPRS, and Ethernet, allowing user-friendly remote system monitoring.
Can these systems charge batteries via solar panels or generators?
Yes. Users can optionally integrate dedicated solar chargers, AC utility chargers, and generator connection ports depending on the specific power layout needs.
How clean is the output voltage from these off-grid inverters?
They produce a pure sine wave output powered by a copper isolation transformer. The total harmonic distortion (THD) is kept under 3% for linear loads, making them perfectly safe for sensitive electronic equipment.
Demin Power
