Fox ESS H3-PRO-15.0 15 kW Three-Phase Hybrid Inverter

Name: Fox ESS H3-PRO-15.0 15 kW Three-Phase Hybrid Inverter
SKU: H3-PRO-15.0
Price: 1870.11 GBP
Availability: InStock

£1870.11

Fox ESS H3-PRO-15.0 is a three-phase, battery-ready hybrid inverter designed for larger UK homes and light-commercial sites that need robust output and stable grid performance. Dual MPPT tracking, high conversion efficiency (up to 98%) and installer-grade protection provide consistent yield across mixed roof aspects and changeable British weather. IP65 ingress protection supports outdoor mounting, while quiet operation keeps plant rooms and utility areas comfortable.

Engineered for high-voltage LFP storage and direct DC-coupled charging, the H3-PRO platform minimises conversion losses and speeds response. FoxCloud monitoring with built-in Wi-Fi/LAN (optional 4G) and interfaces including RS485, CAN, DRM and USB simplify commissioning, handover and ongoing optimisation. Certified to EN 62109-1/-2 with comprehensive electrical protections, it’s suitable for UK G99 applications (check DNO requirements). Dimensions: 600 × 560 × 225 mm; net weight: ≈52.5 kg.

Contact Evergy for product guidance or system compatibility support.

SKU: H3-PRO-15.0

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The Fox ESS H3-PRO-15.0 brings high-density hybrid power to three-phase UK systems that need dependable output, battery integration and professional-grade protections. With dual MPPT trackers, high peak efficiency (up to 98%) and a wide operating window, it converts more generation into usable energy across cloudy spells and multi-aspect roofs. IP65 weather protection, low typical noise and a compact footprint support indoor or outdoor mounting.

Data verified from Fox ESS H3 PRO documentation, Version 1.2 (2023-09-15).

High-Efficiency Performance for British PV Systems

H3-PRO-15.0 extracts steady yield from complex arrays using two independent MPPT inputs operating across a wide voltage range (typical MPPT window up to ~170–850 V model-dependent), helping each string track its optimum point under broken cloud and low-irradiance mornings. Peak conversion efficiency reaches ≈98%, with MPPT tracking efficiency up to 99.9% to reduce losses between the array and the AC side.

Built for Reliability & Protection

An IP65 enclosure protects against dust and rain, while typical noise remains low (around <45 dB) for discreet operation in plant rooms or external wall positions. Integrated electrical protections include anti-islanding, residual-current and insulation monitoring, short-circuit and over-temperature safeguards, plus AC/DC surge protection (Type II/III, model-dependent). Safety is certified to EN 62109-1/-2 with EMC compliance to IEC 61000-6-2/-6-3.

Key Features

Dual MPPT architecture for mixed-orientation or shaded arrays (up to ~170–850 V window).
High peak efficiency (≈98%) and 99.9% MPPT tracking efficiency to maximise yield.
IP65 construction for outdoor installation; quiet typical operation <45 dB.
High-voltage LFP battery compatibility for fast charge/discharge and high round-trip efficiency.
Built-in Wi-Fi/LAN with FoxCloud app & web monitoring; optional 4G.

If you’re wondering how efficiently the H3-PRO-15.0 performs on grey UK days, the wide MPPT window and high tracking accuracy keep strings operating near their optimum even under low light — maintaining production through mornings, evenings and scattered cloud.

Specification data verified from Fox ESS H3 PRO documentation (Version 1.2, 2023-09-15).

Seamless Integration with Solar Panels & Battery Storage

The H3-PRO-15.0 integrates cleanly with modern solar panels and high-voltage LFP storage. DC-coupled charging limits conversion steps and improves response, while scalable Fox battery stacks support higher charge/discharge power for self-consumption and peak-shaving. The H3 PRO platform is designed for larger domestic and light-commercial use where three-phase balance and export control matter.

Smart Monitoring & Installer-Grade Connectivity

FoxCloud provides live and historical insight via app and web, backed by local data logging. Wi-Fi and LAN are standard, with optional 4G for sites without broadband. Interfaces include RS485, CAN (BMS), DRM, ripple control and USB to streamline commissioning, integrate meters and simplify remote diagnostics — reducing call-backs and improving aftercare.

Compact Design & Rugged Construction

Despite its output class, the H3-PRO-15.0 maintains a compact profile at 600 × 560 × 225 mm, with a net weight of roughly 52.5 kg. IP65 ingress protection and controlled-flow fan cooling keep electronics within target temperatures, supporting long service life in British weather. Typical operating noise is around <45 dB, making it suitable for plant rooms and discrete external locations.

Installer Guidance & System Notes

String design & MPPT layout

Use two MPPTs to separate orientations or shading profiles. Keep string voltages within the model’s MPPT window (typ. ~170–850 V) and observe the per-string current limits in the datasheet for your exact configuration.

Battery configuration & sizing

Start with a high-voltage LFP stack sized to your daily kWh use and expand as needed — the H3 PRO platform supports high charge/discharge rates and scalable capacity without changing the inverter.

Grid compliance & safety

Certified to EN 62109-1/-2 with comprehensive electrical protections (anti-islanding, RCM, insulation monitoring, AC/DC surge). For UK G99 applications, follow your DNO’s process and site-specific requirements.

Why We Recommend the Fox ESS H3-PRO-15.0

At Evergy, we endorse H3-PRO-15.0 for its blend of three-phase stability, high-voltage battery integration and professional protections. It’s a strong fit where consistent output, robust IP65 construction and modern connectivity are essential.

Evergy is the renewable division of LAMPS Electrical — an independent UK wholesaler with over 15 years’ trade experience supporting installers nationwide with genuine stock and technical guidance.

Compare in the Fox H3 PRO Range

Model	Rated AC (W)	MPPTs	MPPT Window (V)	Max Eff.	Dimensions (mm)	Weight (kg)
H3-PRO-15.0	15,000	2	~170–850*	≈98%	600×560×225	≈52.5
H3-PRO-20.0	20,000	2	model-dependent	≈98%	600×560×225	≈52.5

*Model-dependent MPPT window values; see the specific H3 PRO datasheet for exact limits. :contentReference[oaicite:18]{index=18}

FAQs – Fox ESS H3-PRO-15.0

How does H3-PRO-15.0 differ from H3-PRO-20.0?

The 20 kW model provides higher AC output and PV headroom for larger arrays; choose H3-PRO-15.0 where loads and roof capacity align closer to 15 kW.

Is it compatible with Fox ESS high-voltage batteries?

Yes — the H3 PRO platform is designed for high-voltage LFP stacks for fast charge/discharge and high round-trip efficiency.

Can it be mounted outdoors?

Yes. The enclosure is rated IP65, suitable for outdoor installation in British weather.

How do I monitor performance?

Via FoxCloud using the built-in Wi-Fi/LAN; optional 4G is available for remote sites.

What are the product dimensions & weight?

Approx. 600 × 560 × 225 mm and ≈52.5 kg net.

For expert guidance, compatible solar panels, or battery options, contact Evergy. We hold genuine UK stock and provide product-led support from our renewables team.

Attribute name	Attribute value
Dimensions	600 x 560 x 225 mm
Weight	57.5 kg
Warranty	10 Years
Rated Power	15,000 W
MPPT Quantity	3
DC Start-up Voltage	160 V
Protection Class	IP65 (Outdoor Use)
Integrated DC Switch	Yes

H3-PRO-15.0

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).

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