SolaX X1 Single Phase String Inverter Range

SolaX X1 Single Phase String Inverter Range

The SolaX X1 String Inverter series offers reliable, high-efficiency solutions for residential solar PV systems. Available in a wide range of power ratings, these inverters combine compact design, advanced safety features, and flexible installation options to suit both small and large domestic projects.

Key Features

• Available models: 1.1kW, 1.5kW, 2.0kW, 2.5kW, 3.0kW, 3.3kW, 3.6kW, 4.0kW, 4.2kW, 5.0kW, 6.0kW
• 150% DC oversizing and 110% AC overloading capability
• Wide MPPT voltage range for maximum energy harvesting
• Low start-up voltage (as low as 45V on Mini, 50V on Boost/Smart)
• Max. DC input current: up to 16A per MPPT (model dependent)
• Dual MPPTs on Boost and Smart models for flexible string design
• Built-in Type II/III SPD (AC & DC) for enhanced protection
• IP66 protection for indoor or outdoor installation
• Fanless, natural cooling for silent operation
• Remote monitoring and maintenance via WiFi/App (dongle optional on some models)
• Export limitation and zero injection support (CT/Meter compatible)
• Comprehensive safety features: over/under voltage, DC isolation, ground fault, anti-islanding, over temperature, and more
• Lightweight, compact design for easy installation
• Warranty: 5–10 years (model dependent)

Model Range & Typical Specifications

• X1-Mini: 1.1kW–2.0kW, single MPPT, max. input voltage 450V, max. efficiency 98%, compact size (e.g. 1.1kW: 267 × 328 × 126 mm, 8.3 kg)
• X1-Boost G4: 2.5kW–6.0kW, dual MPPT, max. input voltage 600V, max. input current 16A per MPPT, max. efficiency 98%, IP66
• X1-Smart: 3.0kW–8.0kW, dual MPPT, max. input voltage 600V, max. input current 14A/28A, max. efficiency up to 97.8%, remote upgrade and maintenance

Applications

• Residential solar PV systems (small to large)
• Properties with limited installation space (Mini models)
• Flexible string design for complex rooftops (Boost/Smart models)
• Installations requiring export limitation or zero injection

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