PD Devices Ltd

Unit 1-2, Old Station Yard
South Brent
TQ10 9AL

  • Supplier of Surge & Lightning Protection
  • The Only UK Metal Oxide Varistor Manufacturer
  • Offering Custom Designed Solutions
  • Supplier of Surge & Lightning Protection
  • The Only UK Metal Oxide Varistor Manufacturer
  • Offering Custom Designed Solutions
Currently Open Call now
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PD Devices Ltd

Solutions to Protect against Damage from Lightning and Transient Over-Voltages

As a leader in the design, manufacture and supply of customised solutions for the protection of essential and critical electrical and electronic equipment, PD Devices is able to provide a wide range of products for specific applications and industries.

Every single product manufactured by PD Devices is RoHS Compliant while our design, manufacture and Quality Assurance meets all ISO 9001-2015 requirements.

Also all products meet National & International Standards & Recognitions including UL, BS, IEC and CEE.

Market Applications

PD Devices Ltd has over 50 years of experience in providing custom designed products for applications in numerous markets such as Rail, Transport, Telecom, Data Networks, Defence, Security and Construction to name but a few.

... Rail/Tram Transport
... Electrical Power Generation & Networks
... Telecom & Data Networks
... Buildings & Services
... Data Centres
... Oil Rigs
... Defence & Security
... Photovoltaic & Wind Farming

Home & Office
We also provide a range of solutions to meet the demands of the domestic sector where we can offer invaluable assistance in the selection and installation of our equipment.

Rail & Tram Transport
PD Devices offers a customised range of products that have been specifically designed for the protection of below ground trackside electrical supplies, signalling and rail infrastructure.

Electrical Power Generation
The AZA Series of MOV assemblies offered by PD Devices includes a range of options for the over voltage and surge protection of DC exciters and similar associated systems of which more details may be found by visiting our website.

Telecom & Data Networks
We have also developed a range of solutions which address life protection and the protection of over-voltage surges from external and internal sources. This includes various modules with high surge handling capabilities for commercial and industrial applications.

Buildings & Services
Our range of surge protection solutions for critical mains power, sub-mains panels and distribution panels provide a well-coordinated approach to surge protection. Areas addressed include mainframe computers, PABX and similar hardware.

Defence & Security
As experts in this field with over fifty years of experience in the design and manufacture of lightning and surge protection applications PD Devices is able to provide a range of highly efficient products to protect the effects of high altitude detonation of Nuclear devices.


Our dedicated manufacturing site also includes our own Pi Delta test lab allowing for on-site testing. This highly efficient set-up allows us not to waste time in having to send our products away for testing off-site.

This means we are able to provide customers with a fully tried and tested product to meet their precise needs.

On-Site Survey & Consultation

We also offer an on-site survey consultation service which will provide invaluable advice on selecting the right kind of surge protection installation.

If you would like to find out more about PD Devices Ltd please do not hesitate to get in touch, alternatively please visit our website.


Products and Services

Associations, Memberships


BSi - British Standards Institute

British Made For Quality

ISO 9001 Quality management systems

Opening Hours

Monday -   09:00 to 17:00
Tuesday -   09:00 to 17:00
Wednesday -   09:00 to 17:00
Thursday -   09:00 to 17:00
Friday -   09:00 to 16:00
Saturday -   Closed
Sunday -   Closed

Accepted payment methods

Visa Visa Debit Cheque BACS Paypal

Payment Terms

30 days

Key Personnel

Lisa Poole

Lisa Poole
Business Manager

Tel: 01364646132
lisaEmail Uspddevices.co.uk

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Russell Poole

Russell Poole
Marketing Manager

Tel: 01364649248
rpooleEmail Uspddevices.co.uk

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Jane Stewart

Jane Stewart
General Manager

Tel: Work :01364646138 Mobile: 07912697413
JStewartEmail Uspddevices.co.uk

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Mike Rendell

Mike Rendell
Managing Director

Tel: 01364646131
mrendellEmail Uspddevices.co.uk

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Rated 5 out of 4 reviews

five stars

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five stars
Frank Plukker, Batenburg Energietechniek B.V.

Product: Low Voltage Limiters - I purchased these from PD as they the only ones with the knowledge and quality is better, no faults yet. Keep up the good work. Not only great products, but also great personnel.

five stars
Marcia Gooch, Dorman Smith Switchgear Limited

A Good solid product, with products to compliment our range of LV switchgear, Surge protection becoming highly recommended in the 18th Edition. Good company to deal with, they have been a supplier for many years. Very knowledgeable staff and very helpful Would recommend them as a supplier to anyone.

five stars

I purchased a Varistor Z500PSN/L specified by a customer, PD Devices were an existing supplier. Always found PD Devices responsive & helpful, deliveries on time & in full.

four point five stars
Cormac McKibbin, Greenville

Products: T1SP3/12.5/50/230R / A1SPM/40/230N / T1SP3/12.5/50R / A3SPM/40/230N - Surge / Lightning protection was required for our panel building workshop by the customer / end users. In my 10 years, I have only ever heard of problems with 2 units and therefore performance must be above average. My only thing I would like to add is maybe a larger stock of product would help with supply times.

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Events & Shows

  • Rail Live 2019

    Rail Live 2019

    The only exhibition bringing the entire rail industry together in a real railway environment R

    From: 19 June 2019 10:00 am
    To: 20 June 2019 16:00 pm