SolaX X1 Mini G4 3.3kW Single Phase String Inverter

£301.18

The SolaX X1 Mini G4 3.3kW inverter delivers reliable, high-efficiency conversion for small to mid-size solar arrays. Quiet, compact and G99 compliant.

  • 3.3kW AC output with 200% DC oversizing
  • MPPT range from 40–530V
  • IP66 rated, natural cooling for silent operation

Why we recommend this product: It’s an excellent fit for households that want compact, efficient solar power with minimal maintenance.

SKU: X1-MINI-3.3K-G4
Free and easy returns | Easy to Install | Professional Installers Available
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SolaX X1 Mini G4 3.3kW: Reliable Solar Inverter for Everyday UK Homes

The SolaX X1 Mini G4 3.3kW inverter is a robust and efficient solution for residential solar arrays. Built for UK rooftops, it blends compact design with advanced performance, and supports larger DC inputs for improved energy generation.

More Power from Modest Roof Space

This model handles up to 6.6kW of DC input while delivering 3.3kW AC output. Ideal for homes generating more than average solar power, it maintains high efficiency even in varied light conditions.

  • 200% DC input oversizing supported
  • Wide MPPT range: 40–530V
  • Max. conversion efficiency: 98.3%

All-Weather Protection & Quiet Operation

Rated IP66 for water and dust protection, this inverter is designed for outdoor use and handles UK conditions with ease. It features natural cooling with zero fan noise, making it suitable for internal or external mounting.

Why Evergy Recommend This Product

  • Ideal for slightly larger solar setups
  • G99 certified and fully grid-ready
  • Minimal ongoing maintenance

Explore the Full Mini G4 Range

We also stock other sizes from this series to suit every home:

You can also view the full range on the official SolaX product page.

Technical Specifications

  • Output: 3.3kW AC
  • DC Input: Up to 6.6kW
  • Efficiency: 98.3%

See the specification tab or data sheet for full technical details.

Delivery

Free UK delivery is included. For trade or larger orders, pallet delivery may apply. See delivery tab for details.

Attribute nameAttribute value
FeaturesData presentation interfaces, inbuilt export control, ARC detection, adapts for EV charger use
IP RatingIP66
Rated Power3300W
Max Input Voltage450V
MPPT Quantity1
DC Start-up Voltage50V
Efficiency98%
SOLAX

Established in 2012, SolaX is an internationally renowned provider of photovoltaic energy storage systems. They offer energy storage inverters, batteries, and grid-connected solutions to customers worldwide. SolaX ranks among the top three globally in market share for household photovoltaic energy storage systems.

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Free delivery - 

NEXT DAY Delivery to Oxfordshire, Buckinghamshire and London via an EVERGY vehicle. Max of 1 ton weight.

 

Other delivery options via courier - 

FREE NEXT DAY (*orders over £50, some batteries and inverters will require an additional fee) via FEDEX. Monday to Friday, up to 30kg, Max box size 50cm x 50cm x 50cm (volume). Orders must be received by 2pm.

Anytime NEXT DAY delivery – under £50 = £6.50 (depending on location, weight and size)

 

Regardless of spend, additional to any of the above charges – 

Before noon (FedEx Priority Express) = Guide Price £15.00 (calulated at checkout)

Before 10am (FedEx First) = Guide Price £20.00 (calulated at checkout)

 

Delivery of pallets - 

Palletised deliveries – Prices starting at £58

Multiple pallet orders can be quoted upon request (price dependent on number of pallets and postcode area)


Special delivery items may vary (non-stock products).

SAME DAY COLLECTION - Click & collect from Evergy Stores (Thame, Oxfordshire).

SolaX X1 Mini G4 3.3kW Single Phase String Inverter

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