Chromalox SRF Frost Protection Trace Heating Cable – Metal & Plastic Pipe Heating Cable

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Chromalox SRF Frost Protection Trace Heating Cable - Metal & Plastic Pipe Heating Cable

Trace Heating Cables & Systems – Design & Supply From Stock

Chromalox SRF Heat Trace Cables – Trace Heating

Trace Heating

Chromalox SRF frost protection trace heating cables provide self-regulating freeze protection to institutional buildings and freeze protection applications up to 85º Celsius – with CSA and UL certification.

Chromalox SRF Frost Protection Trace Heating Cable – Features

  • Energy efficient SRF frost protection cables requires less energy as less heat is required
  • Simple to install cable and can be cut to any length (see max circuit length)
  • Can be single overlapped without burnout, which simplifies heat tracing of in-line process equipment such as valves, elbows and pumps
  • Field splices can be performed easily in minutes with no scrap or wasted cold sections
  • Chromalox termination, splice, tee and end seal kits reduce installation time
  • UL approved for Freeze protection of fire protection system piping

Chromalox SRF Frost Protection Trace Heating Cable – SPECIFICATION

Chromalox SRF heat trace cable wattages per metre at 10°C – 3, 5 and 8 watts.

  • Approximate Cable Size : 3/8″ W x 1/8″ H
  • Maximum Continuous Exposure Temperature : Power Off 85° Celsius
  • Available Models (Voltages) : 120 and 208-277V
  • Minimum Cable Bend Radius : 1-1/8″
  • Trace Heating Cable Circuit Lengths : Up to 660 feet


Product Offering

Part Number Trace Heating Cable Description
386943Chromalox SRF-3-1C 3W/FT 120V
386951Chromalox SRF-3-2C 3W/FT 240V
386100Chromalox SRF-3-1CR 3W/FT 120V
386118Chromalox SRF-3-2CR 3W/FT 240V
386960Chromalox SRF-5-1C 5W/FT 120V
386978Chromalox SRF-5-2C 5W/FT 240V
386142Chromalox SRF-5-1CR 5W/FT 120V
386150Chromalox SRF-5-2CR 5W/FT 240V
386986Chromalox SRF-8-1C 8W/FT 120V
386994Chromalox SRF-8-2C 8W/FT 240V
386062Chromalox SRF-8-1CR 8W/FT 120V
386070Chromalox SRF-8-2CR 8W/FT 240V

Chromalox SRF Thermal Output Rating On Insulated Metal Pipe

Chromalox SRF Thermal Output Rating On Plastice Pipe With Aluminum Tape


Chromalox SRF Output Wattage at Alternate Voltages (W/Ft.)

Chromalox Part Number208V% Change In Output220V% Change In Output277V% Change In Output
Chromalox SRF 32.4-202.6-133.4+15
Chromalox SRF 54.1-184.5-105.6+13
Chromalox SRF 86.88-147.28-98.96+12

Chromalox Chromalox SRF Frost Protection Trace Heating Cable


  • A Twin 16 AWG Copper Buss Wires are able to provide reliable electrical current capability.
  • B Semiconductive Polymer Core Matrix is the ‘self regulating component of the cable and it’s electrical resistance varies with temperature.
  • C Fluoropolymer Jacket is flame retardant and electrically insulates the matric and buss wires and provides corrosion resistance.
  • D Tinned Copper Braid that provides additional mechanical protection in any environment, and a positive ground path.
  • E High Temperature Fluoropolymer or TPR Overjacket (optional) is a corrosion resistant, flame retardant overjacket is highly effective in many environments. TPR coatings protect against certain inorganic chemical solutions.


UL Listed

  • Listed for ordinary areas
  • Listed for fire protection system piping


  • Certified for ordinary areas.


Chromalox video with Chris Myers Product Manager at Chromalox explaining about their heat trace product offering including self regulating trace heating cable.

Trace Heating

Heat Tracing Using Trace Heating Cables

Trace Heating Cables – providing process heating to pipework, vessel and bulk storage drums.


Chromalox technical manual covering trace heating cable selection, design, heat loss calculation, heat transfer fundamentals and radiant infrared heating theory.

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