SolaX X3-Ultra 25.0kW HV 3-Phase Hybrid Inverter

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SolaX X3-Ultra 25.0kW HV 3‑Phase Hybrid Inverter Key benefits 25kW three‑phase commercial and industrial hybrid inverter for combining high‑power PV and lithium batteries on a single platform. Up to 200% PV oversizing, 110% AC output and 200% EPS overload for short periods to support demanding site loads. IP66 protection, Type II surge protection on AC and DC sides and smart management features for reliable long‑term operation. Brief description The SolaX X3‑Ultra 25.0kW HV 3‑Phase Hybrid Inverter is designed for commercial and industrial three‑phase systems that need flexible PV and battery integration with backup capability. It supports parallel operation, microgrid and generator functions, making it a strong fit for logistics hubs, small factories, business parks and mixed‑use sites looking to cut grid consumption and improve resilience. With UPS‑level switchover, smart load control and broad communication options, it integrates smoothly into modern energy management setups. Key features Three‑phase C&I hybrid inverter with 25kW rated output power and EPS (backup) operation when paired with batteries. Supports up to 10 inverters in parallel for both on‑grid and off‑grid applications, plus microgrid and generator functions. 200% PV oversizing, up to 110% AC output and up to 60A battery charge/discharge current for high‑utilisation systems. IP66 ingress protection, Type II DC and AC surge protection and optional AFCI to reduce electrical risk on commercial sites. Single‑unit UPS‑level switchover time under 10ms, built‑in shadow tracking and smart load management for heat pumps and EV chargers. Technical specifications PV input Max. recommended PV array power 50 kWp (X3‑ULT‑25K) Max. PV input voltage 1000 V¹ Rated PV input voltage 600 V Operation voltage range 120 ~ 950 V MPPT voltage range 160 ~ 950 V² Start‑up voltage 200 V No. of MPP trackers / strings per MPP tracker 3 / (2 / 2 / 2) (X3‑ULT‑25K) Max. input current per MPPT 36 A / 36 A / 36 A (X3‑ULT‑25K) Max. input short circuit current per MPPT 45 A / 45 A / 45 A (X3‑ULT‑25K) AC input & output (on‑grid) Rated output power 25000 W (VDE4105 24900 W) (X3‑ULT‑25K) Rated output current 36.3 A (X3‑ULT‑25K) Max. output apparent power 27500 VA (VDE4105 24900 VA) (X3‑ULT‑25K) Max. output continuous current 39.9 A (VDE4105 36.3 A) (X3‑ULT‑25K) Rated AC voltage 3 / N / PE, 220 / 380 V; 3 / N / PE, 230 / 400 V Max. AC input apparent power 25000 VA (X3‑ULT‑25K) Max. AC input current 36.3 A (X3‑ULT‑25K) Rated AC frequency 50 Hz / 60 Hz Adjustable power factor range ~ 1 (0.8 lagging to 0.8 leading) THDi (rated power) < 3% Battery Battery type Lithium Battery voltage range 120 ~ 800 V³⁴ Max. charge / discharge current 60 A (30 A × 2) EPS (off‑grid) output (with battery) Rated EPS output voltage, frequency 230 V / 400 V, 50 Hz / 60 Hz Rated EPS output power 25000 VA (X3‑ULT‑25K) Peak EPS output power 2 times of rated power, 10 s Switchover time < 10 ms Efficiency Max. efficiency 98.0% European efficiency 97.7% Environment limits Ingress protection IP66 Operation temperature range -35 ~ 60°C ( > 45°C derating) Max. operation altitude 3000 m Relative humidity 0 ~ 100% RH (condensing) Overvoltage category Mains: III, Battery: II, PV: II General Dimensions (W × H × D) 696 × 526 × 240 mm Net weight 47 kg Cooling concept Smart air cooling Communication interfaces Meter (RS‑485), DI × 2, DO × 1, Modbus Power consumption (night) < 5 W Topology Non‑isolated Certifications VDE4105, G99, AS4777, EN50549, CEI 0‑21, IEC61727, PEA/MEA, NRS‑097‑2‑1, RD1699, TOR Protection Protections Over / under voltage protection, DC reverse‑polarity protection, Residual current detection, Over temperature protection, DC isolation protection, Grid monitoring, DC injection monitoring, Back feed current monitoring Active anti‑islanding method Frequency shift Surge protection DC: Type II, AC: Type II Arc‑fault circuit interrupter (AFCI) Optional Notes from manufacturer Note 1 The maximum input voltage is the upper limit of the DC voltage. Any higher input DC voltage would probably damage inverter Note 2 Input voltage exceeding the MPPT voltage range may triggers inverter protection Note 3 Compatible with a minimum of 3 units of HS Series batteries, but if the total voltage of the 3 batteries is less than 127V and there is no PV input, the system will not able to startup Note 4 When the voltage is below 180V, the inverter will limit the battery current to less than 20A Shipping Shipping is available to the UK, Ireland, Africa, the Caribbean and worldwide. If the shipping rate is not shown at checkout, please contact us on +44 2080640335 or [email protected] for a tailored shipping quote. UK expert support UK expert support is available to help with product selection, system sizing and integration of the SolaX X3‑Ultra 25.0kW HV 3‑Phase Hybrid Inverter into your PV and battery project. For most commercial and industrial installations we recommend using our trusted installer partners to ensure compliance with local standards, safe commissioning and correct configuration of on‑grid, backup and smart load functions. You can reach us via phone, email or live chat, or visit our office for an in‑person consultation about your project requirements and design options. Documents available for download SolaX X3‑Ultra series datasheet

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