Fox ESS is a leading provider of renewable energy technologies and energy storage solutions, specialising in photovoltaic (PV) systems and battery storage. Founded with a vision to drive energy efficiency and sustainability, Fox ESS delivers innovative products designed for both residential and commercial applications.

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E: service.uk@fox-ess.com

Fox ESS | H3 Smart | 12.0kW | 3-Phase Hybrid/AC Inverter | 10yr Warranty £1,353.00 + VAT
FOX ESS H3 Smart 12.0kW 3-Phase Hybrid/AC Inverter – 10 Yr #2: FE-H3-12.0-SMART Storage Systems | Hybrid Inverter Fox H3 Smart Inverter 12.0kW Datasheet Fox H3 Smart Inverter 12.0kW User Manual Fox H3 Smart Inverter 12.0kW Install Manual Fox H3 Smart Inverter Warranty High-Efficiency Hybrid Inverter for 3-Phase Solar Systems Product Overview The FOX ESS H3 Smart 12.0kW 3-Phase Hybrid/AC Inverter (FE-H3-12.0-SMART) delivers high-capacity solar energy storage and efficient energy management for residential and small commercial installations. Offering true 3-phase backup power, plug & play installation, and remote monitoring via app or web portal, this inverter ensures reliable energy performance with minimal setup. Built for maximum efficiency and flexibility, the H3 Smart 12.0kW is compatible with three battery types, features an IP65-rated enclosure for outdoor use, and includes an integrated DC switch and built-in fuse protection for safe and durable operation. Key Features Expandable & Flexible Rated Power: 12.0 kW for large residential and small commercial PV systems Hybrid/AC functionality for flexible solar integration True 3-phase backup power for uninterrupted energy supply Compatible with 3 battery types for flexible storage solutions Integrated DC switch Smart Monitoring & Connectivity Remote monitoring via FOX ESS app and web portal Plug & Play installation with built-in fuse protection Performance & Efficiency High efficiency (Euro Efficiency 97.2%) for optimal energy output IP65 enclosure suitable for indoor and outdoor installation 10-year warranty included Technical Specifications General Information Part Number: FE-H3-12.0-SMART Model: H3-12.0-Smart Series: FOX ESS H3 Smart Weight: 34 kg Warranty: 10 years Electrical Performance Rated Power: 12,000 W Max AC Power (5 min): 12,000 W Surge AC Power (1 sec): 13,200 W Max DC Power: 22,500 W Max DC Current: 60 A Max DC Inputs: 3 MPPT Quantity: 3 Euro Efficiency: 97.2 % Transformer: HF DC Input Specifications Min PPT Voltage: 140 V Max PPT Voltage: 1,000 V DC Startup Voltage: 140 V DC Shutdown Voltage: 1,000 V Max Input Voltage: 1,000 V DC Fuses: 1 included Connectors: MC4 Included Connectors: 6 Design & Safety Integrated DC Switch: Yes Installation: Plug & Play Protection Rating: IP65 (suitable for outdoor installation) Monitoring: Remote via app or web portal Applications    Large residential 3-phase solar PV installations Small commercial energy storage projects Systems requiring true 3-phase backup power Flexible hybrid or AC-coupled solar configurations
Fox ESS H3 Pro | 20kW 3PH | Hybrid Inverter | 10yr Warranty £2,099.00 + VAT
Fox ESS H3 Pro 20kW 3PH Hybrid Inverter #2: FE-H3-PRO-20.0 Storage Systems - Hybrid Inverter Fox H3 Series 20kW Datasheet Fox H3 Series 20kW Manual Fox H3 Series 20kW Warranty Fox Battery Sizing Guide FoxESS H3 3-Phase Hybrid/AC Inverter – Scalable High-Voltage Storage Solution The FoxESS H3 Hybrid Inverter combines high-performance solar conversion with flexible battery integration, giving homeowners and businesses the ability to expand storage capacity up to 86.4 kWh. With full three-phase backup power, multiple MPPT tracking, and smart connectivity, it delivers reliability, efficiency, and control. Key Features Plug & Play Installation Quick and straightforward setup, reducing time on site. Full Three-Phase Emergency Power Provides uninterrupted backup for essential loads during outages. Flexible Battery Expansion Supports two battery stacks, each with up to 7 modules. Compatible with multiple Fox battery series including HV2600, ECS-2900, ECS-4100, and ECS-4800. High-Voltage Design Optimised for maximum round-trip efficiency and larger storage capacity. Remote Monitoring Integrated Wi-Fi dongle and FoxESS Cloud access for real-time system monitoring. Smart Meter Included Enables accurate energy measurement and export limitation. Advanced MPPT Tracking 3 MPPTs allow maximum energy harvesting from multiple solar arrays. Warranty 5-year standard warranty, extendable up to 10 years. Compatibility EP5,6,11,12 1x FE-HV-BMS + (3-16)x FE-HV-2600 1x ECM-2900 (Master) + (2-6)x ECS-2900 (Slave) (Connector Type A or B) 1x ECM-4100 (Master) + (2-6)x ECS-4100 (Slave) 1x ECM-4300 (Master) + (2-6)x ECS-4300 (Slave) 1x ECM-4800 (Master) + (2-6)x ECS-4800 (Slave) Maximum: 2 stacks, 7 modules per stack (1 Master + 6 Slaves), total 2 Masters + 12 Slaves Technical Specifications Weight: 52.5 kg Rated Power: 20,000 W Min MPPT Voltage: 160 V Max MPPT Voltage: 1,000 V DC Startup Voltage: 160 V DC Shutdown Voltage: 160 V Max Input Voltage: 1,000 V Max DC Power: 30,000 W Max AC Power (5 Minutes): 20,000 W Surge AC Power (1 Second): 22,000 W Max DC Current: 96 A DC Inputs: 6 DC Fuses: 1 Connector: MC4 Included Connectors: 12 Euro Efficiency: 97.4% Transformer: None MPPT Quantity: 3 Integrated DC Switch: Yes This FoxESS H3 Hybrid Inverter is ideal for homeowners or small businesses looking to scale their solar + storage systems efficiently, with robust safety, monitoring, and expansion options. Remember to register your install with Fox online to activate the 10 year product warranty, otherwise it's 5 years as standard. Please click here for registration page. Please check the warranty document for more information.  
Fox ESS 110.0kW R Series 3PH 10x MPPT Grid-Tied Inverter (BTO) | 10yr Warranty £2,185.00 + VAT
Fox ESS 110.0kW R Series 3PH 10x MPPT Grid-Tied Inverter (BTO) #2:FE-R-110.0 Inverters - Main Units Fox R Series Grid-Inverter Datasheet Fox H3 R Series Grid-Tied User Manual Fox R Series Grid-Tied Installation Guide Fox R Series Grid-Tied Inverter Warranty   The R Series inverter range was designed for 3-phase commercial installations, with inverter options from 75kW to 110kW. Features PV String Current Monitoring Arc Fault Circuit Interrupter Function PID Recovery LED, Wi-Fi + APP IP66 and C5 Protection 13A / 16A Input Current, Compatible with Bifacial Module Specs: Weight: 90 kg Rated Power: 110,000 W Max Output Apparent Power: 121 kVa Max Output Current: 175.3 MPPT Quantity: 10/2 Remember to register your install with Fox online to activate the 10 year product warranty, otherwise it's 5 years as standard. Please click here for registration page. Please check the warranty document for more information.  
Fox ESS H3 Pro | 25kW 3PH | Hybrid Inverter | 10yr Warranty £2,349.00 + VAT
Fox ESS H3 Pro 25kW 3PH Hybrid Inverter #2: FE-H3-PRO-25.0 Storage Systems - Hybrid Inverter Fox H3 Series 25kW Datasheet Fox H3 Series 25kW Manual Fox H3 Series 25kW Warranty Fox Battery Sizing Guide   Fox H3 Hybrid 25kW 3-Phase Inverter – Scalable Energy Storage Solution With up to 25kW charge/discharge, the Fox H3 Hybrid inverter is perfect for expanding residential or small commercial solar systems. The inverter supports three battery series, allowing you to increase storage capacity up to 86.4 kWh. Multiple inverters can be connected in parallel—up to 10 units—providing maximum flexibility for larger installations. Supports 2 stacks of Cube or EP batteries with H3 model hybrids. Key Features: Plug-and-Play Installation: Fast, hassle-free setup Full Three-Phase Emergency Power: Reliable backup capability Dual Battery Inputs: Easier connection for high-voltage batteries 3 MPPT Trackers: Optimised solar energy harvesting Remote Monitoring: Via FoxESS Cloud platform Expandable Capacity: Add more batteries as needed High Voltage Design: Maximises round-trip efficiency Included Accessories: Smart meter and WiFi dongle Warranty: 5-year standard, 10-year extended Compatible Batteries: 1x FE-HV-BMS + (3–16)x FE-HV-2600 1x ECM-2900 (Master) + (2–6)x ECS-2900 (Slave) – Connector Type A 1x ECM-2900 (Master) + (2–6)x ECS-2900 (Slave) – Connector Type B 1x ECM-4100 (Master) + (2–6)x ECS-4100 (Slave) 1x ECM-4300 (Master) + (2–6)x ECS-4300 (Slave) 1x ECM-4800 (Master) + (2–6)x ECS-4800 (Slave) Maximum Configuration: 2 stacks, 7 modules per stack (1 Master + 6 Slaves per stack), total of 2 Masters + 12 Slaves. Technical Specifications: Weight: 57.7 kg Rated Power: 25,000 W Min/Max PPT Voltage: 160 – 1,000 V DC Startup / Shutdown Voltage: 160 V Max DC Power: 37,500 W Max AC Power (5 Minutes): 25,000 W Surge AC Power (1 Second): 27,500 W Max DC Current: 96 A Max DC Inputs: 6 DC Fuses: 1 Connector Type: MC4 (12 included) Euro Efficiency: 97.4% Transformer: None MPPT Quantity: 3 Integrated DC Switch: Yes This Fox H3 25kW inverter is ideal for future-proof solar storage systems, offering high efficiency, flexible scalability, and reliable three-phase backup for homes and small businesses. Remember to register your install with Fox online to activate the 10 year product warranty, otherwise it's 5 years as standard. Please click here for registration page. Please check the warranty document for more information.  

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