Chromalox SRL self-regulating heating cable
provides safe, reliable heat tracing for freeze
protection of pipes, valves, tanks and similar
applications. Constructed of industrial grade
16 AWG buss wire with a tinned copper braid
and optional overjacketing, SRL ensures operating
integrity in Div. 2 hazardous environments
as well as certain corrosive industrial
environments. SRL heating cable
has a maximum maintenance temperature
rating of 150°F (65°C).
WARNING — A ground fault protection device
is required by NEC to minimize the danger of
fire if the heating cable is damaged or improperly
installed. A minimum trip level of 30mA is
recommended to minimize nuisance tripping.
- Energy efficient, self-regulating SRL uses
less energy when less heat is required.
- Easy to install, SRL 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.
- SRL features lower installed cost than steam
tracing, less maintenance expense and less
- SRL can be single overlapped without burnout,
which simplifies heat tracing of in-line
process equipment such as valves, elbows
- Because SRL is self-regulating, over-temperature
conditions are minimized.
- Chromalox termination, splice, tee and end
seal kits reduce installation time.
- Freeze Protection
- Process Maintenance, Low Temperature
SRL Selection Guide
Features of SRL Cable
| Max. Maintenance Temp. (°F)
| Max. Exposure Temp. (°F) Power Off
| Max. W/Ft.
| Max. Circuit Length (Ft.)
|| 95 - 660
| Buss Wire Size
|| 120, 208-277
| Hazardous Ratings
| Usable on Plastic Pipe
| Cut-to-Length in Field
| Field Splicable
| Can be Overlapped
| Output Varies with Temp.
|Varies Output Along Length
| Monitor Wire Available
SRL Corrosion Selection Guide
|| C, CR, CT
| Aqueous Solutions of Inorganic Compounds
|| CR, CT
| Liquids Organic Chemicals Acids or Bases
|Acids or Bases
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.