PD Devices Ltd
Direct employees
Turnover (reported)
Regional Markets
Asia, Africa, Australia, Europe, North America, South America
Nuclear Contracting Tiers
Tier 4: Sub-component Suppliers/Distributors
Tier 3: Original Equipment Manufacturing Organisations



  • ISO 9001

PD Devices Ltd


Lightning & Surge Protection Devices -


PD Devices Ltd is a global leader in the design and manufacture of products and custom-designed solutions to protect against damage from lightning and transient over-voltages.
With over 50 years of experience as a UK manufacturer of surge arrester elements, their product range is continuously expanding. They design, manufacture and supply Surge Protection Components, Arresters, Modules and lightning systems for applications in numerous markets including;
• Rail and Tram transport,
• Buildings and Construction,
• Office and Home Protection,
• Telecom and Data Networks,
• Defence and Security.
• Hi-fi and Audio
• Electrical Power Generation and Distribution
• Renewable Energy
• Substations
• Oil Rigs
• Public and Government Buildings
• Airports
• Petrochemical Plants
• Ministry of Defence
PD Devices Ltd capabilities/services include
• The only UK MOV manufacturer
• In-house UK based research and test laboratory
• In-house design and manufacturing capabilities
• Customised product design and manufacture at standard product prices
• Speedy, flexible response to customer’s needs
• Site survey, specification support

Products and Services

Product Sector
Electrical & Electronic Components & PCB's Nuclear Civil
Electrical & Electronic Components & PCB's Power Generation, Distribution & Transmission
Electrical & Electronic Components & PCB's Utilities
Electrical & Electronic Components & PCB's Construction - Civils
Electrical & Electronic Components & PCB's Aerospace - Civil and Defence
Electrical & Electronic Components & PCB's Petrochemical & Refining
Electrical & Electronic Components & PCB's Rail & Transport
Electrical & Electronic Components & PCB's Renewables - (Wind, Tidal, Solar Biomas etc.)
Electrical & Electronic Components & PCB's Electrical components & equipment

Site Facilities

Shop Floor

Size not specified.

Inspection / Testing

  • Electrical


  • CAD Design - 2D
  • CAD Design - 3D
  • CAM Design - 2D
  • CAM Design - 3D

Recent Work

EDF Energy Dungeness B Nuclear Power Station - Link Boxes

EDF Energy own and operate eight operational nuclear reactors, strategically located across seven power plants in the UK.
Each of these power plants is subjected to a ‘Statutory Outage’ every three years.
These planned outages permits vital preventative and curative maintenance and renewals to be undertaken, therefore ensuring continued safe operation and generation.
As an important part of the 2017 outage at the Dungeness ‘B’ power plant, PD Devices Ltd were invited to supply a range of Sheath Voltage Limiter (SVL) protected Link Boxes.
SVL Link Boxes allow the cross-linking of cable armoured sheaths, providing protection against potentially damaging overvoltage conditions.
The SVL devices additionally reduce wasteful circulating currents.
PD Devices supplied four new SVL Link Boxes which were used to replace four exiting SVLs protecting the 400kV cables of generator Circuit 21.
Three more replacement PD Devices SVL Link Boxes are planned to be installed on Generator circuit 22 next year.

EDF Energy Dungeness B Nuclear Power Station - Link Boxes