Chromalox SRF 5-1C 120V Self-Regulating Freeze Protection Trace Heating Cable
Trace Heating Cables
- Manufacturer: Chromalox
- Heating Cable Range: SRF
- Heating Cable Code: SRF 5-1C
- Cable Type: Self-Regulating Freeze Protection Trace Heating Cable
- Approximate Cable Size :Â 3/8″ W x 1/8″ H
- Minimum Cable Bend Radius : 1-1/8″
- Maximum Continuous Exposure Temperature : Power Off 85° Celsius
- Output (W.Ft.): 5 Watts @ 50°F
- Voltage: 120V
- See Also: Trace Heating
Chromalox SRF 5-1C frost protection trace heating cables provide self-regulating frost protection to institutional buildings and freeze protection applications up to 185º F – with UL listing and CSA certification for fire protection system piping and ordinary areas.
- 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
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 matrix 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)Â is a corrosion resistant, flame retardant overjacket which is highly effective in many environments. TPR coatings protect against certain inorganic chemical solutions.
Cable Ordering Information
Model | Braid and Overcoat Options | Output (W/Ft.) | Volts | Wt./1000′ | Chromalox Order Code |
SRF 5-1C | Standard tinned-copper metallic braid for additional protection and ground path | 5 @ 50°F | 120V | 53 lbs | 386960 |
SRF 5-1CR | TPR overjacket over braid for protection against certain inorganic chemical solutions | 64 lbs | 386142 |
âž¡ See also : Electrical Heating for Hazardous Areas
Circuit Breaker Selection (Max. Circuit Lengths in Ft.)
Trace Heating Cable Rating | 40°F Start-Up (Ft.) | 0°F Start-Up (Ft.) | ||||
20A | 30A | 40A | 20A | 30A | 40A | |
SRF 5-1C | 230 | 270 | Not Required | 180 | 270 | Not Required |
âž¡ Please note thermal magnetic circuit breakers are recommended since magnetic circuit breakers could “nuisance trip” at low temperature.

Trace Heating Cables & Systems – Design & Supply From Stock