SolaX X3-FIT AC Chargers with EPS Three Phase

SolaX X3-FIT AC Chargers with EPS (Three Phase)

The SolaX X3-FIT AC Charger G4 series is a high-efficiency, three-phase AC-coupled battery inverter range designed for retrofitting energy storage to existing solar PV systems or integrating smart battery storage into new installations. Available in 6kW, 8kW, 10kW, and 15kW sizes, it delivers robust, intelligent energy management for commercial, industrial, and large residential applications.

Key Features

• Available sizes: 8kW, 10kW, 15kW
• Up to 110% AC overload output (on-grid)
• EPS (Emergency Power Supply) backup output up to 150% for 10 seconds
• Switchover time <10ms for backup (UPS-level)
• High charging/discharging efficiency up to 98.5%
• Compatible with lithium-ion and lead-acid batteries (180–800V)
• Max. continuous charge/discharge current: 30A
• Three-phase unbalanced output: up to 5kW per phase
• On- and off-grid parallel operation, up to 150kW
• Intelligent load management (supports heat pumps, EV chargers, etc.)
• VPP-ready (Virtual Power Plant) and ancillary grid services support
• Quick configuration via U-disk (USB drive)
• Integrated Type II SPD (AC & DC)
• IP65 protection for indoor/outdoor installation
• Fanless, natural cooling for silent operation
• Remote monitoring and control via WiFi/app

Technical Specifications

• AC Rated Power: 6kW, 8kW, 10kW, 15kW (model dependent)
• Max. AC Output Current: up to 25.8A (model dependent)
• EPS Output (with battery): up to 150% of rated power for 10s, switchover time <10ms
• Battery Voltage Range: 180–800V
• Max. Charge/Discharge Current: 30A
• Max. Efficiency: 98.5%
• Battery Charge/Discharge Efficiency: up to 97.5%
• Operating Temperature Range: -35°C to +60°C (derating above +45°C)
• IP Rating: IP65
• Dimensions (W×H×D): 503 × 503 × 199 mm
• Weight: 30 kg
• Noise: <30dB
• Communication: WiFi, RS485, CAN, U-disk
• Warranty: 10 years
• Certifications: G99, G98, VDE4105, EN50549, CEI 0-21, AS4777, IEC62109, and more

Operating Modes

• Self-use: Prioritises local load and battery charging
• Feed-in priority: Maximises grid export before charging or supplying loads
• Force time use: User-defined charging/discharging for tariff optimisation
• Backup mode: Maintains battery for backup, only discharges during grid outage
• Peak shaving: Reduces grid consumption during peak periods

Applications

• Retrofitting battery storage to existing three-phase solar PV systems
• New solar-plus-storage installations (commercial, industrial, large residential)
• Smart energy management and backup
• Participation in VPP and grid services

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