SolaX
SolaX X3-ULT-20KP
Residential Hybrid Inverter
Residential hybrid inverter with battery and backup interface.
AC Phase
3P
AC Rated Power
20 kW
MPPT Count
3
Battery Voltage Class
HV
Backup / EPS Supported
true
IP Rating
IP66
- UPS-level switchover time <10ms and 200% EPS overload for robust backup.
- Max 36A PV input per MPPT, optimized for high-power solar modules.
- Supports up to 10 units in parallel for both on-grid and off-grid versatility.
Applicable Countries
Installer AI Prompt
Generate installer-ready prompt templates for ChatGPT or Gemini.
Core Electrical
Data source
AC Phase
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
AC Rated Power
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Max AC Output Current
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Power Factor Range
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
THD
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
MPPT Count
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Max DC Voltage
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
MPPT Voltage Range
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Max Current per MPPT
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Max Efficiency
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
EU Efficiency
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
| AC Phase | 3P |
| AC Rated Power | 20 kW |
| Max AC Output Current | 33.3 A |
| Power Factor Range | 0.8 leading ~ 0.8 lagging |
| THD | - |
| MPPT Count | 3 |
| Max DC Voltage | 1000 V |
| MPPT Voltage Range | 160-950 V |
| Max Current per MPPT | 36 A |
| Max Efficiency | 98 % |
| EU Efficiency | 97.7 % |
Battery
Data source
Battery Voltage Class
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Battery DC Voltage Range
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Max Charge Power
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Max Discharge Power
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
| Battery Voltage Class | HV |
| Battery DC Voltage Range | 120-800 V |
| Max Charge Power | 20 kW |
| Max Discharge Power | 20 kW |
Backup
Data source
Backup / EPS Supported
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Backup Rated Power
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Switch Time
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Black Start
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Parallel Support
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Max Parallel Units
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Generator Input Supported
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
| Backup / EPS Supported | true |
| Backup Rated Power | 20 kW |
| Switch Time | 10 ms |
| Black Start | Yes |
| Parallel Support | Yes |
| Max Parallel Units | 10 units |
| Generator Input Supported | true |
EMS & Communication
Data source
EMS Modes
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Export Limitation Supported
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Meter Type Supported
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Remote Monitoring Platform
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
| EMS Modes | Self-use, Feed-in Priority, Backup, Manual |
| Export Limitation Supported | true |
| Meter Type Supported | 3-Phase Meter, CT |
| Remote Monitoring Platform | SolaXCloud |
Environment & Mechanical
Data source
Cooling Method
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Max Altitude
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
IP Rating
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Operating Temp Range
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Dimensions (W x H x D)
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Weight
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Interfaces
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
| Cooling Method | Natural |
| Max Altitude | - |
| IP Rating | IP66 |
| Operating Temp Range | -35 to 60 |
| Dimensions (W x H x D) | 696x526x240 mm |
| Weight | 46 kg |
| Interfaces | RS485, CAN, DRM, DI/DO, USB |
Compliance & Warranty
Data source
DC Surge Protection
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
AC Surge Protection
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
AFCI
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Anti-islanding
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
Certifications
Source URL: https://www.solaxpower.com/uploads/file/solax-x3-ultra-datasheet-en.pdf
Source Version: V2.6
| DC Surge Protection | Type II |
| AC Surge Protection | Type II |
| AFCI | - |
| Anti-islanding | Yes |
| Certifications | VDE4105, G99, AS4777, EN50549, CEI 0-21, IEC61727 |