dual-socket-xfmr-editTrackside maintenance requires the use of portable tools and site lighting, which makes the provision of a reliable low voltage trackside supply essential.

TEC provides a 4.0 KVA single phase 230V / 110V C.T.E.isolating transformer to BS EN 61558-1, with internal RCD fitted, petroleum jelly filled and enclosed in a galvanised sheet steel tank to BS EN 60947 Classification IP54, complete with dual 16 amp socket outlets to BS4343. 

All units comply with Network Rail/Railtrack specification RT/ES/40045.

TEC also manufactures signalling and telecommunications transformers to BR specification 924A.

  TEC Products


CL DgreyL outline 4ptv2

The Claude Lyons Group
2 Tower House, Hoddesdon, Herts, EN11 8UR, England
Spares are obtainable from who are stockists of surplus Claude Lyons units and spares .

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Company registered in England No 222791
Registered office as above

VAT Reg No. GB 213 5042 15


UK Established Since 1918

The Claude Lyons Group was founded in the UK in 1918 and is still in private ownership. Since our early days we have been innovators in areas related to voltage and power control and more recently in energy saving and harmonic mitigation. Operating as a global exporter with many years experience we can justifiably call ourselves a world leader in the field of voltage stabilisers, power conditioning and uninterruptible power supplies (UPS)