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Contact Rail Heater (CRH)

Products > Self-Regulating Heaters > Contact Rail Heater (CRH)

Product Features


The Contact or Conductor Rail Heater  self-regulating heating cable has been specifically developed for contact and 3rd/live rails operating on up to 750 volt DC systems.

Contact Rail Heater is designed to mantain the operational integrity of rail networks, ensuring contact rails are kept clear of snow and ice during adverse weather conditions.

Contact Rail Heater is supplied in single lengths upto 178 metres and fitted with 1.5 metre pre-terminated cold lead with remote end seals.  It is suitable for direct replacement of existing contact rail heaters and will intergrate with the majority of contact or live rail heating systems.  The heater is held in place on the rail using protective GRP channel or angle section and purpose made heavy duty rail clips.

Contact Rail Heater cables and system components are suitable for withstanding the hazards of a rail environment - such as severe and continuous vibration due to rail traffic, immersion in icy water, snow, weed killer formulations, diesel oils, lubrication oils, oxalic acid and de-icing fluids.

Contact Rail Heater cables are able to operate in "free air", totally or partially, without affecting the working life of the heater.

The installation of Contact Rail Heater is quick and simple and requires no special skills or tools. The fitting of new or replacement heaters can be carried out quickly and easily with minimum track possession time required causing minimum disruption to rail traffic.

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Click to see larger image
Contact Rail Heater (CRH)
with mounting GRP channel

Click to see larger image
Contact Rail Heater (CRH)
with mounting GRP angle

Product Specification


The graph shows the nominal power output at 600V on a rail.  Click on the graphs to see a larger version.

  Maximum Withstand Temperature 250°C (482°F)
  Minimum Energised Temperature 250°C (482°F)
  Minimum Installation Temperature -40°C (-4°F)
  Power Supply Up to a 1000 points
  Cable Dimensions 13.6 x 4.8 mm
  Cable Weight kg/100m 11.5  kg
  Minimum Bending Radius 30 mm
  Click on the graph to see a larger version.
Nominal power output  against
rail temperature


Maximum Circuit Length (m)  for various circuit breaker sizes
Termperature (°C)
20A 32A 50A      
  90CHR6 0   84   104   166   208              
    -10   68   84   136   208              
    -20   56   72   114   178              
For use with Type C circuit breakers to IEC 60898


Approvals and Certification
EU DoC Contact Rail Heater, CRH
Product and Application Datasheets

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