SolaX X3 Ultra 20kW Hybrid Three Phase Inverter

SolaX X3 Ultra 20kW Hybrid Three Phase Inverter

The SolaX X3 Ultra 20kW Hybrid Inverter is a high-performance three-phase hybrid solution for commercial, industrial, and large residential solar-plus-storage projects. It combines advanced PV conversion, high-voltage battery storage, and intelligent energy management for maximum efficiency, reliability, and flexibility.

Key Features

• Hybrid inverter: integrates solar PV and battery storage
• Max. recommended PV array: 40kWp (supports 200% PV oversizing)
• Max. PV input voltage: 1000V, nominal DC voltage: 600V
• Up to 36A input per MPPT, 2 MPPTs (2 × 2 strings)
• Max. AC output: 20,000W (nominal), 22,000VA (max.)
• 100% unbalanced three-phase output, up to 5kW per phase
• Max. battery voltage: 800V (lithium-ion), range: 180–800V
• Max. battery charge/discharge current: 60A (2 × 30A)
• EPS backup output: 15,000VA (continuous), 2× rated power for 10s
• UPS-level switchover time: <10ms
• Supports microgrid and generator operation, VPP-ready
• Parallel operation: up to 10 units (on-grid/off-grid)
• Type II SPD on both AC & DC sides, IP66 protection
• Smart load management (EV charger, heat pump, etc.)
• Built-in WiFi, Modbus, RS485, digital I/O
• Operating temperature: -35°C to +60°C (derating above +45°C)
• Dimensions: 696 × 526 × 240 mm; Weight: 47 kg
• Fanless smart cooling, transformerless topology
• Certification: G99, VDE4105, EN50549, CEI 0-21, IEC62109, AS4777, and more
• Warranty: 5 years standard

Technical Specifications

• Max. DC input power: 40,000W
• MPPT voltage range: 160–950V
• Start output voltage: 200V
• Nominal AC voltage: 3P4W, 400/230V
• Nominal AC current: 21.8A; Max. AC current: 24A
• Displacement power factor: 1 (adjustable 0.8 leading/lagging)
• Total harmonic distortion: <3% (THDi/THDv)
• Internal consumption (night): <5W
• Protection: Anti-islanding, DC reverse polarity, insulation/residual current monitoring, AC overcurrent/overvoltage, overheat, battery reverse charging, surge protection, AFCI (optional)
• Altitude: up to 3000m
• Relative humidity: 0–100%
• Storage temperature: -40°C to +70°C

Applications

• Commercial and industrial solar-plus-storage systems
• Large residential projects with high energy demand
• Microgrid and off-grid installations
• VPP and grid services participation

Please note: Delivery times may vary depending on location, with specific details outlined below.

Standard Delivery

UK Mainland 

• Delivery Time: 2–4 working days
• Free Delivery on all orders

Express Delivery

UK Mainland

• Delivery Time: 1–3 working days
• Delivery fee of £15

Channel Islands

• Postcodes Covered: GY*, IM*, JE* 
• Minimum Order: £50
• Delivery Fee: £70

Northern Ireland, Offshore Territories & Scottish Islands 

• Postcodes Covered: BT*, HS*, KW, ZE
• Minimum Order: £50
• Delivery Fee: £35

Same Day Delivery 

• Eligible Postcodes:
  E*, EC*, N*, NW*, SE*, SW*, W*, WC*, HA*, UB*, EN*, IG*, RM*, KT*, SM*, CR*, BR*, DA*, TW*
• Minimum Order: £50
• Same Day Delivery Fee: £60
• Special Requests or Locations:
  For areas outside these postcodes or urgent quotes, please email orders@qualityheating.co.uk and we’ll do our best to accommodate.

Collections

Want to collect your order instead?You’re welcome to do so — just email us at orders@qualityheating.co.uk or message us via WhatsApp with your preferred collection time, and we’ll confirm the details.

Collection address: 284 Water Rd, Unit 9, London, HA0 1HX