Off-grid 99% Efficiency 550A 850V Three Phase Triple Output Sine Wave AC/DC Converter 50/60Hz OEM Industrial

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

Touch Screen Display

Product Parameter

Technical Parameters of Three-Phase Off-Grid Inverter 10KW

Parameter Item	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%
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 & 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°C ~ +60°C
Humidity	0~90%, No condensation
Altitude	< 2000m (Higher than 2000m rated power should be reduced)
System Functions & 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
Physical Dimensions
Size (mm)	450 × 830 × 1100 mm
Weight (kg)	180 kg

Technical Parameters of Three-Phase Off-Grid Inverter 20KW

Parameter Item	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%
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 & 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 (0 → 100% Load)	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°C ~ +60°C
Humidity	0~90%, No condensation
Altitude	< 6000m (Higher than 2000m rated power should be reduced)
System Functions & 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
Physical Dimensions
Size (mm)	520 × 1160 × 1350 mm
Weight (kg)	280 kg

Technical Parameters of Three-Phase Off-Grid Inverter 30KW

Parameter Item	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 (AC 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 version)
AC Output
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 (0 → 100% Load)	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°C ~ +60°C
Humidity	0~90%, No condensation
Altitude	< 2000m (Higher than 2000m rated power should be reduced)
System Functions & 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
Physical Dimensions
Size (mm)	660 × 1300 × 1600 mm
Weight (kg)	360 kg

Technical Parameters of Three-Phase Off-Grid Inverter 40KW

Parameter Item	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%
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 & 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 (0 → 100% Load)	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°C ~ +60°C
Humidity	0~90%, No condensation
Altitude	< 6000m (Higher than 2000m rated power should be reduced)
System Functions & 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
Physical Dimensions
Size (mm)	760 × 1400 × 1600 mm
Weight (kg)	550 kg

Technical Parameters of Three-Phase Off-Grid Inverter 50KW

Parameter Item	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%
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 & 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 (0 → 100% Load)	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°C ~ +60°C
Humidity	0~90%, No condensation
Altitude	< 2000m (Higher than 2000m rated power should be reduced)
System Functions & 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
Physical Dimensions
Size (mm)	660 × 1300 × 1600 mm
Weight (kg)	450 kg

Product Application Scenario

Factory & Certificates

Frequently Asked Questions (FAQ)

Q1: What are the main benefits of using a Mitsubishi IGBT component in the inverter?

A1: Mitsubishi IGBT modules offer high efficiency, superior thermal management, and robust power handling capabilities. This ensures the inverter operates reliably under heavy, continuous industrial loads while minimizing energy loss.

Q2: How does the built-in isolation copper transformer protect my appliances?

A2: The pure copper isolation transformer provides complete galvanic isolation between the DC input/inverter circuit and the AC output loads. This dampens electrical noise, limits THD to under 3%, and shields sensitive equipment from voltage surges or faults on the DC side.

Q3: Can these three-phase off-grid inverters switch to utility power or a generator automatically?

A3: Yes. The system has a built-in AC bypass function. The bypass transfer time is standard at ≤40ms or ≤100ms depending on the model, and it can be customized down to ≤4ms for critical uninterruptible power applications.

Q4: What communication options are supported for remote system monitoring?

A4: The inverter supports RS485, Wifi, GPRS, and Ethernet protocols (using Modbus RTU). This allows users to monitor real-time parameters, track system performance, and receive warning notifications remotely via computers or smart devices.

Q5: What protective safety functions are built into these systems?

A5: The system features multiple safety measures including DC input reverse polarity protection, DC input under-voltage/over-voltage protection, AC output overload protection, output short-circuit protection, and over-temperature (thermal) protection.

Q6: Are the solar chargers and AC chargers included by default?

A6: Solar charge controllers, AC battery chargers, and dedicated generator control ports are optional add-ons. This modular design allows you to customize the system configuration based on your specific off-grid power generation and backup requirements.

Product Detail

Off-grid 99% Efficiency 550A 850V Three Phase Triple Output Sine Wave AC/DC Converter 50/60Hz OEM Industrial

Product Description

Product Introduction

Touch Screen Display

Product Parameter

Technical Parameters of Three-Phase Off-Grid Inverter 10KW

Technical Parameters of Three-Phase Off-Grid Inverter 20KW

Technical Parameters of Three-Phase Off-Grid Inverter 30KW

Technical Parameters of Three-Phase Off-Grid Inverter 40KW

Technical Parameters of Three-Phase Off-Grid Inverter 50KW

Product Application Scenario

Factory & Certificates

Frequently Asked Questions (FAQ)

Related Products

Product Detail

Off-grid 99% Efficiency 550A 850V Three Phase Triple Output Sine Wave AC/DC Converter 50/60Hz OEM Industrial

Product Description

Product Introduction

Touch Screen Display

Product Parameter

Technical Parameters of Three-Phase Off-Grid Inverter 10KW

Technical Parameters of Three-Phase Off-Grid Inverter 20KW

Technical Parameters of Three-Phase Off-Grid Inverter 30KW

Technical Parameters of Three-Phase Off-Grid Inverter 40KW

Technical Parameters of Three-Phase Off-Grid Inverter 50KW

Product Application Scenario

Factory & Certificates

Frequently Asked Questions (FAQ)

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