Fox ESS products are engineered for reliability, scalability, and ease of use, offering customers flexible solutions that fit diverse energy needs while maximising self-consumption and cost savings.
£2,208.33 ex VAT£2,650.00 inc VAT
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75 kW • 100 kW • 110 kW — Commercial-Grade, IP66, Upgradable Design
Built for large-scale commercial and industrial solar installations, the Fox ESS R Series delivers outstanding efficiency, advanced safety, and exceptional flexibility. These robust inverters are engineered to maximise energy yield from complex rooftop or ground-mounted systems with uncompromising reliability.
High Conversion Efficiency
Boasts up to 98.6 % maximum efficiency, minimising conversion losses and delivering superior energy returns.
Multiple Independent MPPT Trackers
75 kW model includes 9 MPPTs for optimal energy tracking across varied orientations and conditions
110 kW model steps up to 10 MPPTs, offering even finer control over large and complex systems
100 kW model is positioned between these, offering comparable PV string flexibility
Robust Industrial-Grade Enclosure
All models carry an IP66 rating, ensuring full protection against dust and powerful water jets—suitable for harsh environments
Advanced Diagnostics & Safety Protections
Features include PV string current monitoring, AFCI (arc-fault circuit interrupter), PID recovery, and Wi‑Fi + App-based monitoring—for smart performance tracking and long-term panel health
Low Start‑Up Voltage & Wide Voltage Range
Begins harvesting at just 250 V, with a broad input range up to 1,100 V, helping maximise generation windows under varying light conditions
Upgradeable & Future‑Ready Design
Fully optimised for seamless integration with Fox battery storage systems—allowing a smooth transition to hybrid energy solutions as needs evolve
Output Power: 75 kW (3‑phase)
MPPTs: 9 trackers
Efficiency: Up to 98.6%
Protection: IP66 / C5 rated for outdoor durability
Key Features: PID recovery, AFCI, PV string current monitoring, Wi‑Fi dongle for Cloud access, compact design (~90 kg; 975 × 630 × 360 mm)
Output Power: 100 kW (3‑phase)
Shares the same robust feature set as R75—advanced MPPT flexibility, high efficiency, IP66, safety features, and remote monitoring
Output Power: 110 kW (3‑phase)
MPPTs: 10 trackers for maximum string-level control
Efficiency: Up to 98.6%
Key Features: PID recovery, AFCI, string monitoring, LED indicators, Wi‑Fi connectivity, IP66-rated construction
| Model | Output Power | MPPT Count | Max Efficiency | Protection | Ideal For |
|---|---|---|---|---|---|
| R75 | 75 kW | 9 | 98.6% | IP66/C5 | Mid-size commercial rooftops or ground-mounts |
| R100 | 100 kW | 9 | ~98.6% | IP66/C5 | Larger commercial installations |
| R110 | 110 kW | 10 | 98.6% | IP66/C5 | Largest commercial or light industrial systems |
| Delivery Option | Delivery Time | Cost |
|---|---|---|
| Standard Delivery | 2-3 working days | £6.00 (£5.00 exVAT) |
| FREE Standard Delivery (orders over £99 exVAT)* | 2-3 working days | FREE |
| Next Working Day Delivery (order before 2pm) | Next working day | £9.99 (£8.33 exVAT)* |
| Next Working Day by 12pm (order before 2pm) | Next working day | £20.00 (£16.67 exVAT) |
| Next Working Day by 10:30am (order before 2pm) | Next working day | £21.60 (£18.00 exVAT) |
| Saturday Delivery (order before 2pm Friday) | Next working day | £20.00 (£16.67 exVAT) |
| Northern Ireland, Highland & Islands Delivery | 3-5 working days | £9.99 (£8.33 exVAT) |
Important: Orders placed after 2pm on Friday (or over the weekend) are processed on Monday for next working day delivery. Next Day & Saturday Delivery options NOT available on all products.
*FREE Standard & Next day delivery available on select products and will be clearly shown on the product page.
Please note: we cannot be held responsible for missed deliveries. Customers are advised to check their spam or junk folder to ensure tracking information and estimated delivery details are received.
Some products require specialist handling:
Last updated May 23, 2024
Thank you for your purchase, we hope you are happy with it.
However, if you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund, store credit, or an exchange; please see below for more information on our returns policy.
RETURNS
If you find you have received the wrong or damaged item(s), you need to contact us within 7 days of receipt of goods. Any time after this you are responsible for returning the goods at your own cost following the standard returns process.
All returns must be postmarked and in writing within fourteen (14) days of the purchase date. All returned items must be in a new, unopened and unused condition, with all original tags and labels attached.
RETURN PROCESS
To return an item, please click the ‘Download Returns Form’ below and complete all data fields. You can then email this to our team once completed.
Place your item(s) securely in its original packaging along with the returns form.
Please note that the RMA# on the returns address is your original order number; please ensure to reference this on the returns address, as per below.
You are now ready to mail your return to the following address:
Attn: Returns
RMA #/Order No -
Eco WizardUnderfloor Wizard Ltd t/a ECO Wizard
Beechfield House
Winterton Way
Macclesfield
Cheshire
SK11 0LP
United Kingdom
We ask that all customers when returning products send the goods via a trackable courier service. Underfloor Wizard Ltd t/a ECO Wizard will not be held responsible for goods which do not arrive at our premises.
Please note, you will be responsible for all return shipping charges, unless in the instance of damaged/faulty goods received in which case we can issue you with a returns label to cover the cost of postage.
REFUNDS
After receiving your return and inspecting the condition of your item, we will process your return or exchange. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your return has been processed.
Faults on installed products:
If a product that has been installed develops a fault, please contact us, do not uninstall the product yourself. We will arrange for an engineer or technical support from the brand to assist with diagnosing the fault. Once the fault has been confirmed we can then arrange for the necessary next steps to occur.
EXCEPTIONS
The following items cannot be returned or exchanged:
QUESTIONS
If you have any questions concerning our return policy, please contact us at: returns@ecowizard.co.uk
