RHT Constant Wattage Heating Cables – Tmax 350 °C
Our RHT rail heater cables are parallel-resistance, constant wattage heating cables designed for use on mainline switch systems, electrified third rails, monorails, and tramway systems.
RHT constant wattage heating cable is a cut-to-length cable designed to keep these systems free from snow and ice, ensuring track operational integrity during winter conditions.
When used for spot heating systems, the RHT is supplied pre-terminated in 3 m, 4 m, 5 m, and 6 m lengths to match switch dimensions.
This heating cable is designed for use with standard railway-approved rail heater mounting clips. A thermally insulated encapsulation is available if required.
For specific requirements, please contact us.
Technical information
Applications
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The RHT constant wattage heating cables provide reliable freeze protection for rails, switches, tramways, and monorails thanks to their custom design, constant wattage of up to 220 W/m, and fast installation tailored to the specific dimensions of railway systems.
| Maximum Continuous Exposure Temperature | 350°C |
|---|---|
Maximum Intermittent Exposure Temperature | 425°C |
Minimum Installation Temperature | -65°C |
Power Supply | 230 or 115 VAC (nominal) |
Dimensions (mm ±0.5) | 10,0 x 7,0 |
Minimum Bending Radius | RHT – 25 mm |
Weight (kg/100 m) | RHT – 16,5 kg |
Thread Diameter for Cable Gland | RHT – M20 |
Output Power | Maximum Circuit Length* | (Nominal) Zone Length |
|---|---|---|
(W/m) | 115V - 230V | 115V - 230V |
100 | 16m - 32m | Zone lengths may vary. |
150 | 13m - 26m | Zone lengths may vary. |
220 | 11m - 22m | Zone lengths may vary. |
*For a 10% power variation between both ends
115 V Heating Cable | 230 V Heating Cable |
|---|---|
277 V: multiply the power by 5.80 | 277 V: multiply the power by 1.45 |
230 V: multiply the power by 4.00 | 240 V: multiply the power by 1.09 |
208 V: multiply the power by 3.27 | 220 V: multiply the power by 0.91 |
120 V: multiply the power by 1.09 | 208 V: multiply the power by 0.82 |
110 V: multiply the power by 0.91 | 115 V: multiply the power by 0.25 |
Please contact us for any specific requirements.
RHT Constant Wattage Heating Cables are specifically engineered for freeze protection of railways, points (switches), tramways and monorails.
Application Example:
The RHT heating cable is applied to rail tracks, switch points and transport systems (mainline rail networks, tramways, monorails) to ensure reliable operation under winter conditions.
Problem Example:
Without protection, snow and ice can obstruct switch points, disrupt traffic flow and lead to significant maintenance and operational costs.
The Solution – RHT
The RHT heating cable is a constant wattage, robust, parallel-resistance heating system with a durable aluminium outer sheath.
-Available as factory-terminated lengths or on reels for on-site cutting.
-Easy to install and fully compatible with existing systems.
-Designed and tested in accordance with international railway switch heating standards.
Constant Wattage Heating Cables – Heat Tracer (RHT) are applied across a wide range of industries and environments, including:
-Railway infrastructure
-Tramway networks and urban transit / Monorails and automated metros
-Transportation systems in cold or mountainous climates
-Chemical & petrochemical facilities
-Machinery and equipment manufacturers
-Food & beverage industry
-General industrial applications
This list is not exhaustive.
