$ 2,050
| Specification | Value |
|---|---|
| Brand | Growatt |
| Model | WIT 20K-HU |
| Product Type | Three-Phase Hybrid Inverter |
| Rated Power | 20,000W / 20kW |
| Maximum PV Input Power | 40,000W |
| Maximum PV Input Voltage | 1000V DC |
| MPPT Voltage Range | 150–850V DC |
| Battery Voltage Range | 40–60V |
| Recommended Battery Voltage | 51.2V |
| Maximum Battery Charge/Discharge Current | 420A |
| Battery Type | Lead-acid or Lithium-ion |
| Maximum Efficiency | 97.6% |
| MPPT Efficiency | 99.90% |
| Protection Rating | IP66 |
| Cooling System | Smart Air Cooling |
| Specification | Value |
|---|---|
| Rated AC Output Power | 20,000W |
| Maximum AC Apparent Output Power | 22,000VA |
| Maximum Backup Apparent Power | 2 × Rated Power for 10 seconds |
| Maximum Backup Output Current | 60.61A |
| Rated AC Output Voltage | 220/380V, 230/400V, 240/415V |
| Nominal AC Frequency | 50/60Hz |
| Output THDv | 3% (@ Linear Load) |
| Load Unbalance | 100% Three-Phase Unbalanced |
| On-Grid / Off-Grid Transfer Time | <10ms |
| Adjustable Power Factor | -1 to +1 |
| AC Grid Connection Type | 3P+PE / 3P+N+PE |
| Specification | Value |
|---|---|
| Maximum Recommended PV Power | 40,000W |
| Maximum PV Input Voltage | 1000V DC |
| PV Start Voltage | 180V DC |
| Nominal PV Voltage | 625V DC |
| MPPT Operating Voltage Range | 150–850V DC |
| Maximum Input Current per MPPT | 40A |
| Maximum Short-Circuit Current per MPPT | 50A |
| Number of MPPT Trackers | 2 |
| PV Strings per MPPT | 2 |
| MPPT Efficiency | 99.90% |
| Specification | Value |
|---|---|
| Grid AC Input/Output Rated Power | 40,000W / 20,000W |
| Maximum Grid AC Input/Output Apparent Power | 44,000VA / 22,000VA |
| Maximum Grid Input/Output Current | 66.67A / 33.33A |
| Maximum GEN / AC Couple Input Current | 60.61A / 30.30A |
| Nominal AC Voltage Range | 220/380V, 230/400V, 240/415V, -15% to +10% |
| Grid Frequency | 50/60Hz |
| Grid Frequency Range | 45–55Hz / 55–65Hz |
| Power Factor | -1 to +1 |
| Grid Connection | 3P+PE / 3P+N+PE |
| Specification | Value |
|---|---|
| Battery Type | Lead-acid or Lithium-ion |
| Battery Voltage Range | 40–60V |
| Recommended Battery Voltage | 51.2V |
| Maximum Charge Current | 420A |
| Maximum Discharge Current | 420A |
| BMS Communication | RS485 / CAN |
| Feature | Specification |
|---|---|
| Generator Input | Supported |
| AC Coupling | Supported |
| Parallel Operation | Up to 10 units |
| Three-Phase Load Unbalance | 100% |
| Overload Capability | 200% of rated power for 10 seconds |
| Backup Output | Supported |
| Grid / Off-Grid Transfer Time | <10ms |
| Battery Communication | RS485 / CAN |
| Wi-Fi / LAN Communication | Supported |
| RS485 / USB Interfaces | Supported |
| Specification | Value |
|---|---|
| Dimensions (W × H × D) | 475 × 695 × 241mm |
| Weight | 58kg |
| Display | OLED / LED + APP |
| Communication Interfaces | RS485 / USB / Wi-Fi / LAN |
| Topology | Transformerless |
| Cooling | Smart Air Cooling |
| Protection Degree | IP66 |
| Noise Level | ≤55dB(A) |
| Specification | Value |
|---|---|
| Operating Temperature | -30°C to +60°C |
| Temperature Derating | Above 45°C |
| Relative Humidity | 0–100% |
| Maximum Altitude | 4000m |
| Protection Rating | IP66 |
| Protection Function | Availability |
|---|---|
| PV Reverse Polarity Protection | Yes |
| DC Switch | Yes |
| DC Surge Protection | Type II |
| AC Surge Protection | Type III |
| Insulation Resistance Monitoring | Yes |
| Residual Current Monitoring | Yes |
| AC Short-Circuit Protection | Yes |
| Ground Fault Monitoring | Yes |
| Grid Monitoring | Yes |
| PV String Monitoring | Yes |
| Anti-Islanding Protection | Yes |
| AFCI | Optional |
This solar inverter can be used in different applications where solar generation, battery storage, and backup power need to operate together, including:
| Requirement | WIT 20K-HU Specification |
|---|---|
| Required Inverter Power | 20kW |
| Recommended Maximum PV Power | 40kW |
| Battery Voltage | 40–60V / Recommended 51.2V |
| Maximum Battery Current | 420A |
| PV Voltage Range | 150–850V MPPT |
| Number of MPPTs | 2 |
| Three-Phase System | Yes |
| Generator Integration | Yes |
| Parallel Capability | Up to 10 units |
| Backup Function | Yes |
The Growatt WIT 20K-HU has a rated AC output power of 20,000W (20kW) and a maximum AC apparent power of 22,000VA. This three-phase hybrid inverter is designed for solar, backup, and energy storage applications.
The 20kW Growatt hybrid inverter is designed for systems that combine solar power generation with battery storage. It can also support generator input and AC coupling, providing flexibility for different energy storage configurations.
The recommended maximum PV input power of the WIT 20K-HU is 40,000W (40kW), while its maximum PV input voltage is 1000V DC. The inverter features two MPPT trackers for managing solar PV strings.
The 20K-HU hybrid inverter supports a battery voltage range of 40–60V DC, with 51.2V specified as the recommended battery voltage. It is compatible with lithium-ion and lead-acid battery technologies.
The Growatt 20kW inverter supports a maximum battery charging current of 420A and a maximum battery discharging current of 420A, making it suitable for high-power battery energy storage applications.
The MPPT operating voltage range of the 20K-HU solar inverter is 150–850V DC, with a nominal PV voltage of 625V DC. The PV start-up voltage is 180V DC.
Yes. The WIT 20K-HU supports generator integration as well as AC coupling. The maximum GEN / AC Couple input current is 60.61A / 30.30A, respectively.
Yes. The Growatt 20kW hybrid inverter supports 100% three-phase load unbalance, allowing it to operate with systems where the power demand is not evenly distributed between the three phases.
Yes. Up to 10 WIT 20K-HU units can be connected in parallel. This allows the overall system capacity to be expanded for larger solar and energy storage installations.
1 review for Growatt WIT 20K-HU three Phase Hybrid Inverter
Robert Smith –
How many phases does Growatt WIT 20K-HU support?
webmaster –
Growatt WIT 20K-HU is a three-phase hybrid inverter suitable for larger solar systems.