Mosdorfer CCL
Mosdorfer CCL Systems Limited, headquartered in the United Kingdom, has been a leading supplier of high- and extra-high-voltage equipment for power transmission and distribution systems since 1988. The company builds on an exceptionally long history – over 75 years of experience in the development, manufacture and supply of technical solutions for energy suppliers worldwide.
With over 5,000 approved products, state-of-the-art manufacturing facility and an experienced, well-established team, Mosdorfer CCL offers one of the most comprehensive ranges of line fittings in the industry. As a specialist in distribution systems, Mosdorfer CCL is a fast and reliable partner for energy suppliers and electricity network operators.
Renowned for comprehensive technical manufacturing competence:
- Turning
- Milling
- Drilling
- Welding
- copper and aluminium tube machining
- Compression Technology
This high level of vertical integration guarantees maximum quality, precision and reliability – particularly for demanding transmission and distribution networks.Diese hohe Fertigungstiefe garantiert maximale Qualität, Präzision und Zuverlässigkeit – insbesondere für anspruchsvolle Übertragungs‑ und Verteilnetze.
Products and Competences
Distribution and transmission line systems (11kV – 400kV)
For distribution applications, Mosdorfer CCL offers a wide range of components and tooling technologies:
- Versa Press universal die-less system
- Hex Press die-change compression system
- Connectors for copper, aluminum and bi-metals
- End‑Span Terminations
- Splices, Lugs, Tap‑Off‑ & Service‑Connectoren
- Full range of helical fittings:
- Armour Rods
- Dead Ends
- Distribution Ties
- Side Ties
Systems for tranmission lines (up to 400 kV)
For high and ultra-high voltage the portfolio contains:
- Hex Press compression fittings für ACSR, AAAC und HTLS
- Spacers und Spacer Dampers (Twin, Triple, Quad Bundle)
- Vibration Dampers inkl. 4R-Technologie
- Suspension Clamps / AGS
- Wedge Clamps
- Glas and porcelain disc insulators (80 kN – 300 kN)
- Composite insulators (132 kV – 400 kV)
- Complete systems for Earth Wire & OPGW systems, including assembled string sets
Testing capacities in the UK

Mosdorfer CCL has a fully equipped UK test facility where nearly all products can be tested and certified under real load conditions.
Management
Rob Leach – Managing Director Mosdorfer CCL
References
132kV Dorenell Wind Farm Connection
Short Description: Delivery of fittings for the 132-kV-Connection of the wind park Dorenell in Scotland. Mosdorfer CCL supplied 300 mm² fittings and OPPC earthwire fittings.
Highlights:
- The first supply of 132kV H configuration Composite Poles with Fittings and Composite Insulators in the UK.
- The installation was carried out using a helicopter to access the challenging terrain of the Scottish Highlands
- This project demonstrated the capability to deliver a highly specialized solution for challenging topography and extreme weather conditions.

400 kV Indian Queen
Short Description: First delivery of composite insulators and fittings for a 400 kV transmission line in England.

400 kV Beauly – Denny Upgrade Project
Short Description: This project included the delivery of the first 320 kN OPGW earth wire system in the UK.
