Case Studies

GrayBar offer design, production and supply of track heating systems, enclosures and accessories for the rail industry. We have an impressive portfolio of products that have received PADS approval from Network Rail.

Since the formation of GrayBar as an exclusive railway materials manufacturing company in 1990, we have continued to expand our range of high quality, proven performance cable accessories for many power, signalling and telecommunication applications. Our comprehensive cable accessory range is supplemented by our world class, GrayBar self-regulating point heating system, fully designed and manufactured in-house for installation on main line railway, light rail and tram systems. Our self-regulating point heating system, using our insulated sheathed element and insulated heat shield, carries a full Railtrack Acceptance Certificate for performance and has been the preferred choice of our customers on many railway projects over the years, both in the UK and overseas with installations that include;

Channel Tunnel Rail Link
French and Belgian Metro systems
Stockholm Metro system
Railways of Norway and Finland
Docklands Light Railway in London
Paddington to the West including Heathrow junction
London Underground infrastructure
The South East, Midlands and North West Zones of the National Network
Tram systems across the UK from Croydon, Sheffield, Manchester to Glasgow
Gauge 1 garden railway power supply cubicle – fully commissioned by GrayBar!

Please do not hesitate to contact the GrayBar team with your enquiries.



  •  GRP Dis box - Weaver to Wavertree
    Weaver to Wavertree GRP Dis Boxes
    Graybar have for the last eighteen months been collaborating with Siemens building and delivering a wide range of high Spec GRP Dis Boxes, for Signals, Points, AWS and TPWS, along with GRP Mounting Assemblies, that are an alternative to Half Location Case and Bases. 

  • Limited Clearance GRP Super Dis Box - Liverpool Lime Street
    Liverpool Lime Street Graybar Deliver Limited Clearance GRP Dis Box Solutions
    Graybar have successfully built and delivered GRP Super Dis Boxes for areas of restricted clearance, with drop down doors, in tunnel and areas close to the track.

  • Watford Junction - Case Study
    Watford Junction Indicator Station
    GrayBar were asked by Siemens to design and manufacture a solution that would allow both the Train Driver and Station Attendant to have visibility when the train was cleared to leave. 

  • Springs Branch Track Work
    Springs Branch Track Work Disconnection Boxes
    As Graybar continue to widen their collaboration and partnership with Network Rail, we were given the challenge in helping out at short notice with the design, manufacture and delivery of two WM/WC Point Machine Dis Boxes, a task we were equal to and more than happy to assist with, below is a summary of both Network Rail and GrayBar’s brief, proving that no matter how small or large the project, they can give you equal satisfaction in delivering a quality product, resulting in an equally impressive installation!

  • L3662 G Dis Box
    Leeds Station Signal Disconnection Box
    GrayBar were asked to design and build three suitable Signal Disconnection Boxes to control Signals on Leeds Station, complete with a GRP Mounting Assembly.

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