Off Grid Solar Inverter 200kW 3 Phase 380V Industrial Power Inverter Inversor

Product Description

Three Phase Off Grid Inverter Banner
Product Presentation
Product introduction
  • Using IGBT from Mitsubishi company as the power components
  • Using American ATMEL 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
  • Touch screen English LCD, perfect display, interface-friendly
Inverter Structure Diagram
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Internal components details
Touch screen display
Touch Screen Panel UI Display Screen Parameters
Product parameter
Technical parameters of three-phase off-grid inverter 10KW
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 (Bypass) 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)
AC Output Output rated power 10KW
Output 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%
Working Environment Dielectric strength 1500VAC, 1 minute
Noise (1m) ≤ 50dB
Ambient temperature -20℃ ~ +60℃
Humidity 0~90%, No condensation
Altitude < 2000m (derating required above 2000m)
Protection Function Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection
Pure Sine Wave / Copper Transformer Yes / Yes
Communication Mode RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol)
Solar / AC Charger / Generator Port Optional, available
Size (mm) / Weight (kg) 450 × 830 × 1100 mm / 180 kg
Technical parameters of three-phase off-grid inverter 20KW
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 (Bypass) 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)
AC Output Output rated power 20KW
Output 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%
Wave Form Pure sine wave (Isolation transformer)
THD ≤ 3% (Linear load)
Dynamic response time 2ms (Load 0←→100%)
Power factor (PF) / Crest factor (CF) 1 / 3:1
Overload capacity 120% for 5 minutes, 200% for 3 seconds
Inverter efficiency 94%
Working Environment Dielectric strength / Noise (1m) 1500VAC, 1 minute / ≤ 50dB
Ambient temperature -20℃ ~ +60℃
Humidity 0~90%, No condensation
Altitude < 6000m (derating required above 2000m)
Protection Function Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection
Pure Sine Wave / Copper Transformer Yes / Yes
Communication Mode RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol)
Solar / AC Charger / Generator Port Optional, available
Size (mm) / Weight (kg) 520 × 1160 × 1350 mm / 280 kg
Technical parameters of three-phase off-grid inverter 30KW
Type NB120-30KSZ NB240-30KSZ NB380-30KSZ
DC Input 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
AC Input (Bypass) 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)
AC Output Output rated power 30KW
Output 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%
Wave Form / THD Pure sine wave (Isolation transformer) / ≤ 3%
Dynamic response time 2ms (Load 0←→100%)
Power factor (PF) / Crest factor (CF) 1 / 3:1
Overload capacity 120% for 5 minutes, 200% for 3 seconds
Inverter efficiency 94%
Working Environment Dielectric strength / Noise (1m) 1500VAC, 1 minute / ≤ 50dB
Ambient temperature -20℃ ~ +60℃
Humidity 0~90%, No condensation
Altitude < 2000m (derating required above 2000m)
Protection Function Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection
Pure Sine Wave / Copper Transformer Yes / Yes
Communication Mode RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol)
Solar / AC Charger / Generator Port Optional, available
Size (mm) / Weight (kg) 660 * 1300 * 1600 mm / 360 kg
Technical parameters of three-phase off-grid inverter 40KW
Type NB220-40KSZ NB240-40KSZ NB380-40KSZ
DC Input 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
AC Input (Bypass) 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)
AC Output Output rated power 40KW
Output 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%
Wave Form / THD Pure sine wave (Isolation transformer) / ≤ 3%
Dynamic response time 2ms (Load 0←→100%)
Power factor (PF) / Crest factor (CF) 1 / 3:1
Overload capacity 120% for 5 minutes, 200% for 3 seconds
Inverter efficiency 94%
Working Environment Dielectric strength / Noise (1m) 1500VAC, 1 minute / ≤ 50dB
Ambient temperature -20℃ ~ +60℃
Humidity 0~90%, No condensation
Altitude < 6000m (derating required above 2000m)
Protection Function Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection
Pure Sine Wave / Copper Transformer Yes / Yes
Communication Mode RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol)
AC / Solar Charger / Generator Port Optional
Size (mm) / Weight (kg) 760 * 1400 * 1600 mm / 550 kg
Technical parameters of three-phase off-grid inverter 50KW
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 (Bypass) 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)
AC Output Output rated power 50KW
Output 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%
Wave Form / THD Pure sine wave (Isolation transformer) / ≤ 3%
Dynamic response time 2ms (Load 0←→100%)
Power factor (PF) / Crest factor (CF) 1 / 3:1
Overload capacity 120% for 5 minutes, 200% for 3 seconds
Inverter efficiency 94%
Working Environment Dielectric strength / Noise (1m) 1500VAC, 1 minute / ≤ 50dB
Ambient temperature -20℃ ~ +60℃
Humidity 0~90%, No condensation
Altitude < 2000m (derating required above 2000m)
Protection Function Input reverse protection, input under-voltage protection, output overload protection, output short circuit protection, thermal protection
Pure Sine Wave / Copper Transformer Yes / Yes
Communication Mode RS485, Wifi, GPRS, Ethernet (Modbus RTU protocol)
AC / Solar Charger / Generator Port Optional
Size (mm) / Weight (kg) 660 * 1300 * 1600 mm / 450 kg
Product quality testing
Product application scenario
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Product verification certificates
Frequently Asked Questions

What are the main components driving the high reliability of these off-grid inverters?

These inverters utilize advanced IGBT components from Mitsubishi company for heavy-duty power output, controlled by highly efficient microprocessors from ATMEL company to ensure precise execution and stable controller operation.

What is the transfer time when switching to the AC bypass?

The standard bypass transfer time is less than or equal to 40ms for the 10KW model, and less than or equal to 100ms for larger models (20KW to 50KW). A customized high-speed version with a transfer time of less than or equal to 4ms is also available.

Does the inverter output a pure sine wave?

Yes, all models in this series generate a pure sine wave output and come equipped with an integrated copper isolation transformer. This setup provides superior inductive load handling capabilities and protects connected equipment from harmonic distortions.

What kind of remote monitoring options are supported?

The inverters feature robust communication configurations. They natively support RS485, Wifi, GPRS, and Ethernet transmission modes running under the standard Modbus RTU protocol, allowing easy integration into third-party monitoring platforms.

What protections are built into the device?

The device features full-scale multi-level protections, including DC input reverse polarity protection, input under-voltage protection, output overload protection, output short-circuit protection, and over-temperature (thermal) protection.

Are the solar chargers, AC chargers, and generator ports pre-installed?

These options are modular and highly customizable. They can be added optionally during ordering to match specific requirements for hybrid solar, AC utility grid, or backup generator systems.

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