Demin Power
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| Type | NB48-10KSZ | NB96-10KSZ | NB120-10KSZ | NB240-10KSZ | |
|---|---|---|---|---|---|
| DC Input | |||||
| 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 | |
| AC Input (AC bypass) | |||||
| 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) | ||||
| AC Output | |||||
| 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% | ||||
| Working Environment | |||||
| 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) | ||||
| Function & Features | |||||
| 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 | ||||
| Type | NB48-20KSZ | NB96-20KSZ | NB120-20KSZ | NB240-20KSZ | |
|---|---|---|---|---|---|
| DC Input | |||||
| 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 | |
| AC Input (AC Bypass) | |||||
| 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) | ||||
| AC Output | |||||
| Output rated power | 20KW | ||||
| Output rated voltage and frequency | 220 VAC / 380 VAC / 400 VAC ± 2%, 50Hz / 60Hz | ||||
| Output rated current | 55.5A / 30A / 29A | ||||
| 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% | ||||
| Working Environment | |||||
| 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) | ||||
| System Features | |||||
| 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 Charger / AC Charger / Generator Port | Optional, available | ||||
| Size(mm) | 520×1160×1350 mm | ||||
| Weight(kg) | 280 kg | ||||
| Type | NB120-30KSZ | NB240-30KSZ | NB380-30KSZ | |
|---|---|---|---|---|
| DC Input | ||||
| Input rated voltage | 120 VDC | 240 VDC | 380 VDC | |
| Input rated current | 278A | 139 A | 88 A | |
| Input DC voltage range | 100-155 VDC | 200-310 VDC | 320-496 VDC | |
| AC Input (AC Bypass) | ||||
| Allow input voltage range | 220 VAC / 380 VAC / 400 VAC ± 15% VAC | |||
| Input rated current | 83A / 45.5A / 43.5 A | |||
| Bypass transfer time | ≤100ms (Can be customized ≤4ms version) | |||
| AC Output | ||||
| 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% | |||
| Working Environment | ||||
| 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) | |||
| System Features | ||||
| 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*1600mm | |||
| Weight(kg) | 360kg | |||
| Type | NB220-40KSZ | NB240-40KSZ | NB380-40KSZ | |
|---|---|---|---|---|
| DC Input | ||||
| 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 | |
| AC Input (AC Bypass) | ||||
| 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) | |||
| AC Output | ||||
| 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% | |||
| Working Environment | ||||
| 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) | |||
| System Features | ||||
| 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 | |||
| Size(mm) | 760*1400*1600mm | |||
| Weight(kg) | 550kg | |||
| Type | NB480-50KSZ | NB380-50KSZ | |
|---|---|---|---|
| DC Input | |||
| Input rated voltage | 480 VDC | 380 VDC | |
| Input rated current | 115 A | 146 A | |
| Input DC voltage range | 400-620 VDC | 320-496 VDC | |
| AC Input (AC Bypass) | |||
| 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) | ||
| AC Output | |||
| 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% | ||
| Working Environment | |||
| 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) | ||
| System Features | |||
| 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 | ||
| Size(mm) | 660*1300*1600mm | ||
| Weight(kg) | 450kg | ||
Our three-phase off-grid inverters utilize high-quality IGBT modules from Mitsubishi as the power components and microprocessors from ATMEEL (USA) as figure controllers to ensure high efficiency, reliability, and precision control.
The inverter is built with comprehensive protection functions, including DC input reverse polarity protection, input under-voltage protection, AC output overload protection, output short circuit protection, and thermal/over-temperature protection.
The bypass transfer time varies by model (ranging from ≤40ms to ≤100ms). For sensitive devices, we offer customized versions with a super-fast transfer time of ≤4ms.
The system supports multiple communication interfaces, including RS485, WIFI, GPRS, and Ethernet using the standard Modbus RTU protocol, enabling convenient remote control and status monitoring.
Yes, solar charge controllers, AC chargers, and generator ports are optional upgrades. You can customize the setup based on your off-grid system configuration and local power source availability.
The integrated pure copper isolation transformer ensures robust galvanic isolation between the DC and AC sides, increases load-bearing capability for inductive loads, and delivers a clean pure sine wave output with minimal distortion (THD ≤3%).
