Mersen at LED Controls

Mersen is a global specialist in electrical power and advanced materials. At LED Controls we stock popular Surge-Trap surge protection devices, NH and BS fuse links and holders, and PV DC protection for industrial, building services and renewable applications. Get genuine products, quick UK delivery and practical selection support from our technical team.

Mersen manufacturing and product overview
Mersen PV HelioProtection and surge protection

Why buy Mersen from LED Controls

  • Authorised UK supplier with genuine stock and competitive pricing
  • Surge protection, fuse links and holders selected for fast installation and compliance
  • PV DC protection options for 1000 V and 1500 V systems
  • Datasheets on request and responsive after sales support
  • Next working day delivery available on many lines

Protect plant and infrastructure with proven Mersen devices and clear technical guidance.

Mersen product categories

Mersen Surge-Trap type 1 and type 2 SPDs

Surge protection devices

Type 1 and Type 2 SPDs for 1 to 4 pole systems, with remote indication options.

Mersen PV DC midget fuse links

PV DC fuses and cartridges

gPV fuse links and replacement SPD cartridges for 1000 V and 1500 V PV arrays.

Mersen BS fuse holder

BS fuse holders

Panel and DIN holders to suit BS style industrial fuse links in common ratings.

Mersen Surge-Trap PV replacement cartridge

SPD replacement cartridges

Plug in cartridges to service Mersen Surge-Trap devices quickly on site.

LED Controls warehouse and technical team

History

1891

Origins in carbon and power technologies that later became part of the Mersen group.

2010

Rebrand to Mersen, focusing on electrical power and advanced materials.

2010s

Expansion of Surge-Trap SPDs, HelioProtection PV fuses, and BS/NH industrial fuse systems.

2020s

Manufacturing capacity growth and broader certifications to meet global demand.

From switchboards to solar combiner boxes, Mersen products from LED Controls help you deliver safe, standards compliant protection across UK industry.

Watch Mersen In Action

Mersen is a global expert in electrical specialties and advanced materials for high-tech industries. With more than 50 industrial sites and 18 R&D centers in 35 countries around the world, Mersen develops customized solutions and delivers key products to its clients in order to meet the new technological challenges shaping tomorrow’s world. Find out more in this video.

Explore our Mersen Range

Frequently Asked Questions

Type 1 devices handle direct lightning current at the service entrance in lightning protection systems. Type 2 devices protect downstream distribution against switching and indirect surges. Many installations use coordinated stages for the best result.

Yes. Selected Surge-Trap models include a remote signalling contact so you can monitor status from a BMS or PLC. Check the product page for the exact contact type and rating.

NH is a continental blade style used widely in industrial distribution. BS styles are common in UK installations and panel builders. Select based on switchgear compatibility, short circuit ratings and site standards.

gPV denotes a fuse link tested for full range PV circuit protection. It is designed to protect PV strings and arrays at the stated DC voltage and current. Always match voltage, current and breaking capacity to the application.

Many items are available for next working day delivery subject to stock. For non stocked items we will confirm the current lead time when you enquire or at checkout.

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