SolaX X3 Ultra 25kW: Smart Three-Phase Inverter for Scalable Solar & Storage
Built for big energy needs, the SolaX X3 Ultra 25kW inverter enables flexible solar and battery system design for three-phase commercial and residential sites. With dual battery ports, fast switching backup, and support for high PV loads, it's engineered to support complex installations with ease.
High PV Input, Dual MPPT & Battery Support
The X3 Ultra 25kW supports up to 37.5kW PV input and offers dual MPPT and dual battery ports. That means you can connect larger arrays and more storage capacity with intelligent energy management and full Modbus BMS compatibility.
- 150% PV oversizing supported
- Dual 30A battery ports with 50A max discharge
- Works with Solax and third-party batteries
Emergency Backup & Smart Load Control
This model includes EPS backup mode with a 10ms switchover. It’s ideal for keeping critical loads powered during outages. Built-in smart load shifting ensures you make the most of variable energy tariffs and solar production.
- Integrated emergency power output
- 10ms switchover for seamless operation
- Supports grid export limits and energy scheduling
Perfect for Larger Systems
The 25kW Ultra is suited to large residential properties, commercial installations, and energy-hungry businesses aiming to cut costs and boost sustainability with scalable solar and storage setups.
Why LAMPS Recommends This Product
- Ideal for 3-phase hybrid systems with high load
- Dual battery and MPPT input for advanced flexibility
- Reliable EPS backup and smart control options
Technical Specifications
- AC Output: 25kW
- Max PV Input: 37.5kW
- Max Discharge Rate: 50A
- EPS Output: 25kW
For full details, see the Specification tab or the SolaX product page.
Delivery
Free UK delivery available on this inverter. Large orders may be sent via pallet. See our Delivery Information page for more.
Other Sizes Available
If you need a different output, check out the 20kW Ultra or the 30kW Ultra for heavier loads.
