Three-Phase Hybrid Inverter · 50-100 kW
WIT 50-100K-AU Three-Phase Hybrid Inverter
Models: WIT 50K-AU / WIT 63K-AU / WIT 75K-AU / WIT 100K-AU
A three-phase hybrid inverter platform for commercial and industrial PV with high-voltage battery storage. Four power classes from 50 kW to 100 kW support up to three units in parallel in off-grid mode, provide UPS function with black start and accept 100% three-phase unbalanced loads. The AC side allows 110% long-term overload, the generator can be controlled remotely and the series provides grid support functionality.
50-100 kW
Rated AC output
600-1000 V
Battery voltage
3 units
Off-grid parallel
IP66
Protection rating
Product Overview
The WIT 50-100K-AU series covers 50 kW, 63 kW, 75 kW and 100 kW three-phase hybrid models. Each model pairs a 380/400/415 V grid connection with a 600-1000 V high-voltage battery port rated at 768 V and up to 167 A charge and discharge current over RS485/CAN.
In off-grid mode the series delivers 220/230/240 V or 380/400/415 V output with 100% three-phase unbalance capability, handles 110% load continuously and up to 120% for 10 minutes, and switches between on-grid and off-grid modes in 20 ms or less. Maximum charge and discharge efficiency is 98.0% and the IP66 enclosure uses smart air cooling with an OLED and LED display.
Key Features
- Parallel operation of up to 3 units in off-grid mode
- UPS function and black start capability
- 100% three-phase unbalanced load support in off-grid mode
- 110% long-term overload on the AC side
- Remote generator control
- Grid support functionality
- 600-1000 V high-voltage battery input, 768 V rated
- Up to 167 A battery charge and discharge current
- 20 ms on/off-grid transfer time
- OLED and LED display with WiFi and APP monitoring
- Smart air cooling and IP66 protection
- 5-year standard warranty with 10-year option
Technical Specifications
AC Output (Grid-Tied)
| Parameter | WIT 50K-AU | WIT 63K-AU | WIT 75K-AU | WIT 100K-AU |
|---|---|---|---|---|
| Rated power | 50 kW | 63 kW | 75 kW | 100 kW |
| Maximum apparent power | 55 kVA | 69.3 kVA | 82.5 kVA | 110 kVA |
| Rated voltage | 380 / 400 / 415 V | |||
| AC voltage range | -15% to +10% | |||
| Rated frequency | 50 / 60 Hz | |||
| AC frequency range | 45-55 Hz / 55-65 Hz | |||
| Maximum output current | 83.3 A @380 V / 79.7 A @400 V | 105 A @380 V / 100.4 A @400 V | 125 A @380 V / 119.5 A @400 V | 166.7 A @380 V / 159.4 A @400 V |
| Power factor | -1 to +1 | |||
| THDi | <3% | |||
| Grid connection type | 3P3W+PE / 3P4W+PE |
Battery
| Parameter | WIT 50K-AU | WIT 63K-AU | WIT 75K-AU | WIT 100K-AU |
|---|---|---|---|---|
| Charge / discharge power | 56.7 kW | 71.4 kW | 85.1 kW | 113.5 kW |
| Battery voltage range | 600-1000 V (3P3W) / 680-1000 V (3P4W) | |||
| Rated battery voltage | 768 V | |||
| Maximum charge / discharge current | 83.3 A | 105 A | 125 A | 167 A |
| BMS communication | RS485 / CAN |
AC Output (Off-Grid)
| Parameter | WIT 50K-AU | WIT 63K-AU | WIT 75K-AU | WIT 100K-AU |
|---|---|---|---|---|
| Rated output power | 50 kW | 63 kW | 75 kW | 100 kW |
| Maximum apparent power | 60 kVA | 75.6 kVA | 90 kVA | 120 kVA |
| Rated output voltage | 220 / 230 / 240 V / 380 / 400 / 415 V | |||
| Rated output frequency | 50 / 60 Hz | |||
| Load connection type | 3W+N+PE | |||
| Maximum output current | 90.9 A | 114.5 A | 136.7 A | 181.8 A |
| THDv | <3% (linear load) | |||
| Unbalanced load capability | 100% three-phase unbalance | |||
| Overload capability | ≤110% continuous; 110-120% for 10 minutes; above 120% for 200 ms | |||
| On/off-grid transfer time | 20 ms |
Efficiency
| Maximum charge / discharge efficiency | 98.0% |
Protection
| Battery reverse-polarity protection | Available |
| DC / AC surge protection | Class II |
| Insulation resistance monitoring | Available |
| Ground fault monitoring | Available |
| Grid monitoring | Available |
| Leakage current monitoring | Available |
| AC short-circuit protection | Available |
| Anti-islanding protection | Available |
General Data and Certification
| Dimensions (W × H × D) | 820 × 1350 × 510 mm |
| Weight | 120 kg |
| Operating temperature range | -30 °C to +60 °C (derated above 50 °C) |
| Relative humidity | 0-100% |
| Maximum altitude | 4000 m |
| Topology | Transformerless |
| Cooling | Smart air cooling |
| Protection rating | IP66 |
| Display | OLED + LED / WiFi + APP |
| Communication ports | RS485 / CAN / USB available |
| Monitoring options | RS485 / 4G / LAN-X optional |
| Warranty | 5 years standard, 10 years available |
| Certification | GB/T 34120-2017, IEC/EN 61000-6-1, IEC/EN 61000-6-3, IEC/EN 62477-1, IEC/EN 62109-1, IEC/EN 62109-2, IEC 62116, IEC 61727, G99:2020, EN 50549-1, VDE 4105, VDE 0124, UL 1741, IEEE 1547 |
Applications
The series is intended for commercial and industrial PV-plus-storage systems that need backup power, unbalanced loads and generator support.
- Commercial and industrial rooftop PV with storage
- Backup power for critical three-phase loads
- Off-grid sites with up to three parallel units
- Generator-hybrid systems with remote start and stop
- Grid-support and peak-shaving projects
OEM & Custom Requirements
Project supply and private-label requirements can be confirmed against the standard WIT 50-100K-AU platform. Share the required power class, battery type, generator plan and destination market.
- Private-label enclosure and documentation
- Power class selection from 50 kW to 100 kW
- Battery and generator interface configuration
- Manual localisation for the target market
- Packaging and delivery planning
Need a project-specific quote?
Send us the required power class, battery configuration, generator plan and destination port. We will confirm the model, documentation package and delivery schedule.