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15kW / 19.9kW / 20kW / 25kW / 30kW
Battery terminal temperature detection
IP66 protection degree
Type II SPD on AC&DC side
Optional AFCI protection
200% PV oversizing and up to 110% AC output
200% EPS overload for 10s
Max. 60A charging / discharging current
Low start-up voltage for longer operation
Single unit UPS-level switchover time<10ms
Built-in shadow tracking
Smart loads management(e.g., heat pump, smart EV charger)
Loads respond time within 0.3 s
VPP ready with a variety of compatibility
(OpenADR, IEEE2030.5, FCAS, API)*
Max. 10pcs parallel for on-grid and off-grid
Microgrid and generator function for versatile operations
Max. 36A PV input per MPPT, optimized for high-power solar panel
Introduces a new C&I energy storage solution, suitable for factories, malls, offices, and warehouse.
With 2/3 MPPTs, it maximizes power generation, enhancing compatibility with complex solar systems.
Even if one MPPT encounters a fault, it won't affect the operation of other arrays.
200% oversized PV input = 100% AC Output + 100% Battery Storage
We ensure every unit of solar power is fully utilized, converted into AC output and stored in batteries efficiently.
Power is allocated independently to each phase, controllable down to 0W per phase, with a max.10kW output on a single phase, reducing grid reliance.
Highlighting our micro-gird function.
The micro-grid feature enables the hybrid inverter to simulate the grid and activate the string inverter when off-grid.
By connecting the string inverter to the hybrid inverter's EPS port, it can use PV or battery energy to power the string inverter during utility outages.
Leveraging real-time data detection through our SOLAX Cloud streamlines commercial and industrial management processes.
| Parameter | X3-ULT-15K |
| Max. recommended PV array power | 30 kWp |
| Max. PV input voltage | 1000 V |
| Nominal PV input voltage | 600 V |
| Operating voltage range | 120 ~ 950 V |
| MPPT voltage range | 160 ~ 950 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 2 / (2 / 2) |
| Max. input current per MPPT (MPPT1/2/3) | 36 A / 36 A |
| Max. input short circuit current per MPPT (MPPT1/2/3) | 45 A / 45 A |
| Rated output power | 15000 W (AS4777 14999 W) |
| Rated output current | 21.8 A |
| Max. output apparent power | 16500 VA (AS4777 14999 VA) |
| Max. output continuous current | 24.0 A (AS4777 21.8 A) |
| Nominal AC voltage | 3 / N / PE, 220 / 380 V |
| Max. AC input apparent power | 15000 VA |
| Max. AC input current | 21.8 A |
| Nominal AC frequency | 50 Hz / 60 Hz |
| Adjustable Power Factor range | ~1 (0.8 lagging to 0.8 leading) |
| THDi (rated power) | <3% |
| Battery type | Lithium |
| Battery voltage range | 120 ~ 800 V |
| Parameter | X3-ULT-15KP |
| Max. recommended PV array power | 30 kWp |
| Max. PV input voltage | 1000 V |
| Nominal PV input voltage | 600 V |
| Operating voltage range | 120 ~ 950 V |
| MPPT voltage range | 160 ~ 950 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 2 / (2 / 2) |
| Max. input current per MPPT (MPPT1/2/3) | 36 A / 36 A |
| Max. input short circuit current per MPPT (MPPT1/2/3) | 45 A / 45 A |
| Rated output power | 15000 W (AS4777 14999 W) |
| Rated output current | 21.8 A |
| Max. output apparent power | 16500 VA (AS4777 14999 VA) |
| Max. output continuous current | 24.0 A (AS4777 21.8 A) |
| Nominal AC voltage | 3 / N / PE, 220 / 380 V |
| Max. AC input apparent power | 15000 VA |
| Max. AC input current | 21.8 A |
| Nominal AC frequency | 50 Hz / 60 Hz |
| Adjustable Power Factor range | ~1 (0.8 lagging to 0.8 leading) |
| THDi (rated power) | <3% |
| Battery type | Lithium |
| Battery voltage range | 120 ~ 800 V |
| Parameter | X3-ULT-30K |
| Max. recommended PV array power | 60 kWp |
| Max. PV input voltage | 1000 V |
| Nominal PV input voltage | 600 V |
| Operating voltage range | 120 ~ 950 V |
| MPPT voltage range | 160 ~ 950 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 3 / (2 / 2 / 2) |
| Max. input current per MPPT (MPPT1/2/3) | 36 A / 36 A / 36 A |
| Max. input short circuit current per MPPT (MPPT1/2/3) | 45 A / 45 A / 45 A |
| Rated output power | 30000 W (AS4777 29999 W, VDE 4105 29900 W) |
| Rated output current | 43.5 A |
| Max. output apparent power | 30000 VA (AS4777 29999 VA, VDE 4105 29900 VA) |
| Max. output continuous current | 43.5 A |
| Nominal AC voltage | 3 / N / PE, 230 / 400 V |
| Max. AC input apparent power | 30000 VA |
| Max. AC input current | 43.5 A |
| Nominal AC frequency | 50 Hz / 60 Hz |
| Adjustable Power Factor range | ~1 (0.8 lagging to 0.8 leading) |
| THDi (rated power) | <3% |
| Battery type | Lithium |
| Battery voltage range | 120 ~ 800 V |
| Parameter | X3-ULT-25K |
| Max. recommended PV array power | 50 kWp |
| Max. PV input voltage | 1000 V |
| Nominal PV input voltage | 600 V |
| Operating voltage range | 120 ~ 950 V |
| MPPT voltage range | 160 ~ 950 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 3 / (2 / 2 / 2) |
| Max. input current per MPPT (MPPT1/2/3) | 36 A / 36 A / 36 A |
| Max. input short circuit current per MPPT (MPPT1/2/3) | 45 A / 45 A / 45 A |
| Rated output power | 25000 W (VDE 4105 24900 W) |
| Rated output current | 36.3 A |
| Max. output apparent power | 27500 VA (VDE 4105 24900 VA) |
| Max. output continuous current | 39.9 A (VDE 4105 36.3 A) |
| Nominal AC voltage | 3 / N / PE, 230 / 400 V |
| Max. AC input apparent power | 25000 VA |
| Max. AC input current | 36.3 A |
| Nominal AC frequency | 50 Hz / 60 Hz |
| Adjustable Power Factor range | ~1 (0.8 lagging to 0.8 leading) |
| THDi (rated power) | <3% |
| Battery type | Lithium |
| Battery voltage range | 120 ~ 800 V |
| Parameter | X3-ULT-20KP |
| Max. recommended PV array power | 40 kWp |
| Max. PV input voltage | 1000 V |
| Nominal PV input voltage | 600 V |
| Operating voltage range | 120 ~ 950 V |
| MPPT voltage range | 160 ~ 950 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 2 / (2 / 2) |
| Max. input current per MPPT (MPPT1/2/3) | 36 A / 36 A |
| Max. input short circuit current per MPPT (MPPT1/2/3) | 45 A / 45 A |
| Rated output power | 20000 W |
| Rated output current | 29.0 A |
| Max. output apparent power | 22000 VA |
| Max. output continuous current | 31.9 A |
| Nominal AC voltage | 3 / N / PE, 230 / 400 V |
| Max. AC input apparent power | 20000 VA |
| Max. AC input current | 29.0 A |
| Nominal AC frequency | 50 Hz / 60 Hz |
| Adjustable Power Factor range | ~1 (0.8 lagging to 0.8 leading) |
| THDi (rated power) | <3% |
| Battery type | Lithium |
| Battery voltage range | 120 ~ 800 V |
| Parameter | X3-ULT-19.9K |
| Max. recommended PV array power | 40 kWp |
| Max. PV input voltage | 1000 V |
| Nominal PV input voltage | 600 V |
| Operating voltage range | 120 ~ 950 V |
| MPPT voltage range | 160 ~ 950 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 3 / (2 / 2 / 2) |
| Max. input current per MPPT (MPPT1/2/3) | 36 A / 36 A / 36 A |
| Max. input short circuit current per MPPT (MPPT1/2/3) | 45 A / 45 A / 45 A |
| Rated output power | 19999 W |
| Rated output current | 29.0 A |
| Max. output apparent power | 19999 VA |
| Max. output continuous current | 29.0 A |
| Nominal AC voltage | 3 / N / PE, 230 / 400 V |
| Max. AC input apparent power | 19999 VA |
| Max. AC input current | 29.0 A |
| Nominal AC frequency | 50 Hz / 60 Hz |
| Adjustable Power Factor range | ~1 (0.8 lagging to 0.8 leading) |
| THDi (rated power) | <3% |
| Battery type | Lithium |
| Battery voltage range | 120 ~ 800 V |
| Parameter | X3-ULT-20K |
| Max. recommended PV array power | 40 kWp |
| Max. PV input voltage | 1000 V |
| Nominal PV input voltage | 600 V |
| Operating voltage range | 120 ~ 950 V |
| MPPT voltage range | 160 ~ 950 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 2 / (2 / 2) |
| Max. input current per MPPT (MPPT1/2/3) | 36 A / 36 A |
| Max. input short circuit current per MPPT (MPPT1/2/3) | 45 A / 45 A |
| Rated output power | 20000 W |
| Rated output current | 29.0 A |
| Max. output apparent power | 22000 VA |
| Max. output continuous current | 31.9 A |
| Nominal AC voltage | 3 / N / PE, 230 / 400 V |
| Max. AC input apparent power | 20000 VA |
| Max. AC input current | 29.0 A |
| Nominal AC frequency | 50 Hz / 60 Hz |
| Adjustable Power Factor range | ~1 (0.8 lagging to 0.8 leading) |
| THDi (rated power) | <3% |
| Battery type | Lithium |
| Battery voltage range | 120 ~ 800 V |
