Self-Regulating Freeze Protection Cable

Self-Regulating Freeze Protection Cable
  • Approximate Size 3/8"W x 1/8"H
  • Available in 3, 5, 8 Watts per Foot
  • Available in 120 to 208-277V Models
  • Third-party certifications: UL, CSA
  • Maximum Continuous Exposure Temp, Power Off, 185°F
  • Circuit Lengths up to 660 Feet
  • Min. Install Temp = -40°F (-40°C)
  • Min. Bend Radius 1-1/8"
  • For Use on Metal and Plastic Pipes & Tanks
  • UL approved for Freeze protection of fire protection system piping
  • Literature
    SRF Catalog Page

  • Energy efficient, self-regulating SRF uses less energy when less heat is required.
  • Easy to install, SRF can be cut to any length (up to max. circuit length) in the field.
  • Field splices can be performed easily in minutes with no scrap or wasted cold sections.
  • SRF can be single overlapped without burnout, which simplifies heat tracing of in-line process equipment such as valves, elbows and pumps.

For more features refer to catalog page PDF to the right.

  • Freeze Protection

Features of SRF Cable

Max. Maintenance Temp. (°F) 100
Max. Exposure Temp. (°F) Power Off 185
Max. W/Ft. 8
Max. Circuit Length (Ft.) 180 - 660
Buss Wire Size 16
Voltages 120, 208-277
Hazardous Ratings No
Usable on Plastic Pipe Yes
Cut-to-Length in Field Yes
Field Splicable Yes
Can be Overlapped Yes
Output Varies with Temp. Yes
Varies Output Along Length Yes
Accessories DL/EL/U
Monitor Wire Available No

SRF Corrosion Selection Guide

Moisture C, CR
Aqueous Solutions of Inorganic Compounds No
Liquids Organic Chemicals Acids or Bases No
Acids or Bases No
C - Tin-Plated copper metallic braid for additional protection and ground path
CT - Fluoropolymer corrosion resistant overjacket over braid for hostile/corrosive environments
CR- TPR overjacket over braid for protection against certain inorganic chemical solutions

This is a recommendation guide. Chromalox cannot warrant any Electric Heat Trace against failure by sheath degradation if such failure is the result of operating conditions beyond the control of the heater manufacturer. It is the responsibility of the purchaser to make the ultimate choice of sheath material based on knowledge of the chemical composition of the corrosive solution, character of materials entering the solution, and controls which maintains the process.

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Part # Description List Price  
386943 SRF-3-1C 3W/FT 120V 6.00 USD Buy Now
386951 SRF-3-2C 3W/FT 240V 6.25 USD Buy Now
386100 SRF-3-1CR 3W/FT 120V 7.75 USD Buy Now
386118 SRF-3-2CR 3W/FT 240V 8.00 USD Buy Now
386960 SRF-5-1C 5W/FT 120V 6.75 USD Buy Now
386978 SRF-5-2C 5W/FT 240V 6.75 USD Buy Now
386142 SRF-5-1CR 5W/FT 120V 8.50 USD Buy Now
386150 SRF-5-2CR 5W/FT 240V 9.00 USD Buy Now
386986 SRF-8-1C 8W/FT 120V 7.00 USD Buy Now
386994 SRF-8-2C 8W/FT 240V 7.50 USD Buy Now
386062 SRF-8-1CR 8W/FT 120V 9.50 USD Buy Now
386070 SRF-8-2CR 8W/FT 240V 9.75 USD Buy Now
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