SolaX X3-ULTRA 15K Three-Phase Hybrid Inverter, WiFi 3.0, 3 MPPTs

High Efficiency and Maximum Energy Utilisation

Maximum DC input current of 36 A per MPPT

3 MPPTs and 6 PV strings

Up to 200% PV oversizing

Maximum PV input of 200%

Cost Savings

100% unbalanced output

24/7 Time-of-Use operation

AI-Based Energy Management

Intelligent scheduling

Smart operating scenarios

Intelligent load management

Two Independent Battery Ports

Independently managed for easy system expansion

The two ports can be connected in parallel

Supports high-capacity battery systems

Battery capacity of up to 2.8 MWh with TB-PBOX*

High Safety and Reliability

Optional AFCI protection

Type II surge protection on both the AC and DC sides

Powerful Backup Performance

Switchover time of less than 10 ms

EPS overload capability of twice the rated power for 10 seconds

Supports all types of electrical loads

Supports microgrid operation

Supports diesel generators

Why Choose the X3-ULTRA?

The X3-ULTRA is a new commercial and industrial energy-storage solution suitable for factories, shopping centres, offices, and warehouses.

With 2 or 3 MPPTs, depending on the model, it maximises solar energy generation and improves compatibility with complex photovoltaic systems.

Even if one MPPT experiences a fault, the operation of the other PV arrays will not be affected.

A 200% oversized PV input allows the system to allocate up to 100% of the available power to AC output and up to 100% to battery storage.

This ensures that the available solar energy is fully utilised, converted into AC power, and efficiently stored in the batteries.

Power can be allocated independently to each phase and controlled down to 0 W per phase. The system supports an output of up to 10 kW on a single phase, helping reduce dependence on the utility grid.

Microgrid Function

The microgrid function allows the hybrid inverter to simulate the utility grid and activate a string inverter during off-grid operation.

By connecting the string inverter to the EPS port of the hybrid inverter, the system can use photovoltaic or battery energy to power the string inverter during a grid outage.

Real-time data monitoring through SolaX Cloud helps streamline commercial and industrial energy-management processes.

Model

Model: X3-ULT-15KP

PV Input

Maximum recommended PV array power: 30,000 Wp
Maximum DC input power: 30,000 W
Maximum DC voltage: 1,000 V
Nominal DC operating voltage: 600 V
Number of MPPT trackers / strings per MPPT: 3 (2 / 2 / 2)
Maximum input current, PV1 / PV2 / PV3: 36 / 36 / 36 A
Maximum short-circuit current, PV1 / PV2 / PV3: 45 / 45 / 45 A
MPPT voltage range: 160–950 V
Start-up voltage: 200 V

AC Output – On-Grid

Rated AC power: 15,000 VA
AS4777 rated AC power: 14,999 VA
Maximum AC apparent power: 16,500 VA
AS4777 maximum AC apparent power: 14,999 VA
Rated grid voltage: 3P4W, 400 / 230 V
Rated grid frequency: 50 / 60 Hz
Rated AC current: 21.8 A
Maximum AC current: 24.0 A
AS4777 maximum AC current: 21.8 A
Displacement power factor: 1, adjustable from 0.8 leading to 0.8 lagging
Total harmonic distortion at rated power: < 3%

AC Input

Rated AC power: 15,000 VA
Rated AC current: 21.8 A
Rated grid voltage: 3P4W, 400 / 230 V
Rated grid frequency: 50 / 60 Hz

Battery

Battery type: Lithium-ion
Battery voltage range: 120–800 V
Maximum charging/discharging current: 60 A, 30 A × 2

EPS Output with Battery

Peak EPS power: Twice the rated power for 10 seconds
Rated EPS power: 15,000 VA
Rated EPS voltage: 400 / 230 V
Rated EPS frequency: 50 / 60 Hz
Rated EPS current: 21.8 A
Switchover time: < 10 ms
Total harmonic distortion with linear load: < 3%