Fox ESS T10-G3 10kW Three-Phase String Inverter

Name: Fox ESS T10-G3 10kW Three-Phase String Inverter
SKU: T10-G3
Price: 680.00 GBP
Availability: InStock

£680.00

The Fox ESS T10-G3 10 kW three-phase string inverter delivers high-efficiency, reliable performance for UK residential and light-commercial photovoltaic systems. With dual MPPT tracking, a broad 140–1000 V operating window and up to 98.6 % conversion efficiency, it maximises solar energy production throughout the day — even under cloud cover or on mixed-orientation roofs.

Its rugged IP65 enclosure and fan-free design ensure quiet, low-maintenance operation indoors or outdoors, while integrated residual-current and insulation monitoring simplify G99 grid compliance. Built-in data logging and FoxCloud connectivity (Wi-Fi/LAN with optional 4 G) provide real-time performance insight for homeowners and installers alike. Certified to EN62109, the T10-G3 is engineered for long-term reliability in British conditions and ready for future battery integration within the Fox ecosystem.

Pair with premium solar panels and durable mounting systems, or step up to the T15-G3 for larger arrays.

Contact Evergy for product guidance or system compatibility support.

SKU: T10-G3

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Free and easy returns | Easy to Install | Professional Installers Available

The Fox ESS T10-G3 10 kW three-phase string inverter combines premium engineering with installer-friendly design to deliver dependable performance for larger domestic and light-commercial solar arrays across the UK. Built around advanced dual MPPT technology, it maintains exceptional conversion efficiency — up to 98.6 % — and stable generation throughout variable British weather conditions.

High-Efficiency Performance for British PV Systems

Two independent MPPT trackers and a wide 140–1000 V window optimise power harvest from split or multi-aspect roofs. With a maximum DC voltage of 1100 V and low start-up of 140 V, the T10-G3 reacts quickly to shifting light levels, keeping arrays productive from early morning to dusk. Peak conversion reaches 98.6 %, with Euro efficiency of approximately 97.8 %, supporting strong returns on UK installations.

Built for Reliability & Protection

A robust IP65-rated enclosure and natural convection cooling eliminate the need for fans, keeping acoustic output around 30 dB and reducing maintenance over time. Integrated safety measures include residual-current and insulation monitoring, Type II surge protection on both DC and AC sides, and anti-islanding logic for secure grid operation. Certified to EN62109 and fully compliant with G99, the T10-G3 is ready for connection to the UK distribution network.

Key Features

Dual MPPT inputs with 99.8 % tracking accuracy for optimal generation across complex roofs
Up to 98.6 % maximum efficiency / 97.8 % Euro efficiency for real-world conditions
IP65 fan-free design for quiet, low-maintenance operation (≈ 30 dB)
Comprehensive safety suite — RCM, insulation monitoring & Type II surge protection
FoxCloud Wi-Fi / LAN monitoring with optional 4 G connectivity for remote sites
Easy G99 commissioning through built-in data logging and diagnostics

If you’re wondering how efficient the T10-G3 remains under low-light conditions, its 140 V start-up and broad MPPT window keep the system active through overcast UK weather, sustaining generation when lesser inverters switch off.

Specification data verified from Fox ESS T Series (G3) documentation (version 1.1, 2021-11-19).

Seamless Integration with Solar Panels & Battery Storage

The Fox ESS T10-G3 connects effortlessly with a wide range of solar panels and battery storage systems. Its advanced high-voltage DC design enables direct coupling to Fox ESS LFP batteries, reducing conversion losses and allowing scalable storage from small domestic setups to larger commercial applications. With precise MPPT control and minimal energy loss, it provides smooth, efficient power delivery to the grid or your chosen storage solution.

Smart Monitoring & Connectivity

Every T10-G3 includes intelligent FoxCloud monitoring as standard. Users can view live generation, consumption, and fault data via Wi-Fi or LAN, while installers benefit from comprehensive commissioning tools and remote diagnostics. Optional 4 G connectivity ensures consistent monitoring even in off-grid or rural locations. Communication interfaces include RS485, USB, and smart-meter ports to simplify system integration and firmware updates.

Compact Design & Rugged Construction

Engineered for British weather, the IP65 aluminium chassis protects internal electronics from moisture and dust, enabling reliable outdoor installation. Measuring approximately 370×480×183.5 mm and weighing around 21 kg, it’s compact enough for one-person handling while maintaining high power density. Natural convection cooling ensures quiet operation at roughly 30 dB — ideal for garages, utility areas, and small plant rooms.

Installer Guidance & System Notes

String design & MPPT layout

Use the 140–1000 V MPPT window to balance string lengths and orientation. Each tracker supports up to around 18.2 A input current, allowing two arrays to operate independently for maximum yield throughout the year.

Battery configuration & sizing

Start with a 7–10 kWh Fox ESS HV LFP pack for typical homes, scaling up to 20 kWh + as demand increases. Expansion is straightforward — no inverter upgrade is required.

Grid compliance & safety

Certified to EN62109 and compliant with G99. Integrated residual-current, insulation, and surge protection simplify safe commissioning under UK distribution regulations.

Why We Recommend the Fox ESS T10-G3

At Evergy, we recommend the T10-G3 for its proven reliability, versatile MPPT performance and installer-friendly setup. Its robust IP65 build, intuitive FoxCloud interface and outstanding conversion efficiency make it a dependable choice for modern three-phase systems in both homes and small commercial sites.

Evergy is the renewable division of LAMPS Electrical — an independent UK wholesaler with more than 15 years of experience supporting installers nationwide. We supply genuine Fox ESS equipment, verified documentation and ongoing technical support from our Oxfordshire renewables team.

Compare in the Fox T Series (G3)

Model	Max PV (W)	Rated AC (W)	MPPTs	MPPT Window (V)	Max Eff.	Dimensions (mm)	Weight (kg)
T8-G3	12000	8000	2	140–1000	98.6 %	370×480×183.5	21
T15-G3	19500	15000	2	140–1000	98.6 %	370×480×183.5	22

FAQs – Fox ESS T10-G3 Three-Phase String Inverter

How does the T10-G3 differ from the T8-G3?

The T10-G3 offers a higher 10 kW AC output and greater PV input capacity than the T8-G3, making it better suited for larger three-phase systems.

Is it compatible with Fox ESS batteries?

Yes — the T10-G3 supports Fox ESS high-voltage LFP batteries, scalable up to around 20 kWh of storage.

Can it be installed outdoors?

Yes. The IP65 aluminium housing and fan-free design make it ideal for outdoor or plant-room mounting in UK climates.

How can the system be monitored?

Through FoxCloud, available via mobile app or browser. Standard Wi-Fi and LAN connectivity allow 24/7 remote access.

What are the inverter’s dimensions and weight?

The T10-G3 measures 370×480×183.5 mm and weighs approximately 21 kg.

For expert advice on system compatibility or specifying the right inverter for your project, contact Evergy — trusted UK distributor of leading solar brands.

Attribute name	Attribute value
Dimensions	Not specified
Weight	Not specified
Warranty	10 Years
Rated Power	10,000 W
Max Efficiency	98.6%
Max Input Voltage	1,100 V
MPPT Quantity	2
DC Start-up Voltage	140 V
Protection Class	IP65 (Outdoor Use)

T10-G3

FOX ESS

Fox ESS is a global leader in the development of inverter and energy storage solutions. Engineered by some of the world’s leading inverter and battery experts, their products offer advanced features, coupled with exceptional performance and reliability.

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).

Products

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A robust IP65 enclosure and fan-free thermal design enable quiet, low-maintenance operation indoors or outdoors. Safety features include residual-current and insulation monitoring, anti-islanding and surge protection to support G99 grid compliance, while certification to EN62109 underpins electrical safety. Built-in data logging with FoxCloud (Wi-Fi/LAN, optional 4G) provides clear visibility for homeowners and installers, and the T6-G3 integrates naturally with the wider Fox ecosystem when you plan future storage.

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