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With many years of experience in the design and manufacture of overvoltage protection products, we manufacture the key element within some surge protection devices, the MOV (Metal Oxide Varistor). All of these MOV's are produced right here in South Brent, Devon, UK.

We start the manufacturing process by adding a blend of zinc oxide (ZnO) and other metal oxides together, these materials are pressed and sintered at high temperatures to produce a polycrystalline structure with highly resistive properties.

As we are producing the MOV from scratch we are able to offer a bespoke product Service.

We have our own independent PiDelta Test Services laboratory on site, this allows us to not waste any time in having to send product off-site for testing and therefore assisting us with the full ability for the best bespoke surge protection you will find.

Also we do offer an on-site survey consultation which will provide invaluable assistance in the selection and installation of surge protection products. Reference will always be made to current British and European standards pertinent to this complex area to ensure compliance.


We are CPD accredited to offer training of Continuing Professional Development.

So, what is CPD?

CPD stands for Continuing Professional Development (CPD) and is the term used to describe the learning activities professionals engage in to develop and enhance their abilities.

A structured, practical and methodical approach to learning helps employers across industries to keep key staff and develop the skills & knowledge in their organisations to maintain a sustainable and competitive advantage. Engaging in Continuing Professional Development ensures that both academic and practical qualifications do not become out-dated or obsolete.

We offer training in the understanding of:

  • What are surges and where do they come from?

  • Why is surge protection required?

  • What needs to be surge protected?

  • What are the surge protection standards?

  • What is available to protect?

  • What components are used in surge protectors and why?

  • Protection applications

  • Typical Installations

CPD Certification
CPD Presentation Image

Contact Us

PD Devices Ltd
Unit 1, Old Station Yard
South Brent
Devon, TQ10 9AL
United Kingdom
VAT Registration: 782 1267 25
Company Registration: 4253515

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Surge Protection Device Manufacturer & Lightning Surge Protection Solutions