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The Contact Rail Heater (CRH) is a self-regulating heating cable specifically designed for contact rails and third rails operating at 750 V DC.
It provides reliable protection against ice and snow formation while automatically adapting to temperature variations, enabling quick installation and optimal performance up to 250 °C, even in demanding railway environments.

CRH self-regulating heating cables are engineered to withstand the specific stresses of the railway environment, including severe and continuous vibrations from traffic, immersion in icy water, snow, herbicides, diesel oils, lubricating oils, oxalic acid, and de-icing fluids. CRH cables can operate in “open air,” fully or partially, without compromising the heating system’s lifespan.

Installation of the CRH cable is fast and simple, requiring no special skills or tools. The installation of new or replacement heaters can be carried out easily and quickly, with minimal track occupation, thereby reducing railway traffic disruptions.

Maximum Allowable Exposure Temperature

250°C

Maximum Operating Temperature

250°C

Minimum Installation Temperature

-40ºC

Power Supply

Up to 1000 volts (AC ou DC)

Rated Power

Up to 130 W/m

Cable Dimensions

13.6 x 4.8mm +/- 0.5mm

Minimum Bending Radius

40mm

Weight (kg/100 m)

15.7 kg

Maximum Protective Braid Resistance

18.2 Ohm/km

Cable Gland Thread

M25

 

Maximum Circuit Length (m) according to Breaker Size

Reference

 

Start-up Temperature (°C)

 

230V

16A

20A

32A

50A

90CRH6

0

84

104

166

208

-10

68

84

136

208

-20

56

72

114

178

For use with Type C circuit breakers in accordance with IEC 60898

The CHR self-regulating heating tape is used to prevent ice formation on contact rails and third rails in railway networks, ensuring operational continuity and traffic safety even under severe winter conditions.

We offer a range of safe, reliable, and energy-efficient solutions that provide winter protection across several transport sectors, including:

-Mainline railway networks

-Light Rapid Transit (LRT) systems

Self-Regulating Heating Cables – Contact Rail Heaters (CRH) are used in the following sectors:

-Railway Transport

-Urban Infrastructure and Tramways

This list is not exhaustive.

Range of Self-Regulating Heating Cables