UPS banner v3 new logoIn todays technology reliant world UPS have become a fundamental requirement Uninterruptible power supply
in the defence against AC mains power conditioning problems and protection against total power failure. 

Claude Lyons offer a comprehensive range of UPS systems, from compact desktop applications through to high capacity protection of medical equipment, data centers and industrial plant where continuity of operation is paramount.

Our range includes on-line, off-line and line-interactive models, single or three phase UPS. 

We can also specify a wide range of autonomy backup times and software options to suit your application.

To ensure we specify the correct UPS for our customers Claude Lyons can provide site surveys to determine your power requirements, as well as commissioning services and maintenance contracts for long term support.

Our technical sales team will be pleased to provide you with full information and available options on the UPS system suited to your application.

Contact icons 40pxContact Us today for technical enquiries and quotations


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The Claude Lyons Group
2 Tower House, Hoddesdon, Herts, EN11 8UR, England
Spares are obtainable from who are stockists of surplus Claude Lyons units and spares .

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Company registered in England No 222791
Registered office as above

VAT Reg No. GB 213 5042 15


UK Established Since 1918

The Claude Lyons Group was founded in the UK in 1918 and is still in private ownership. Since our early days we have been innovators in areas related to voltage and power control and more recently in energy saving and harmonic mitigation. Operating as a global exporter with many years experience we can justifiably call ourselves a world leader in the field of voltage stabilisers, power conditioning and uninterruptible power supplies (UPS)