Chromalox SRM/E self-regulating heating
cable provides safe, reliable heat tracing for
process temperature maintenance and freeze
protection of pipes, valves, tanks and similar
applications. Constructed of industrial grade
16 AWG buss wire with metal braid and optional
overjacketing, SRM/E ensures operating
integrity in most hostile industrial environments.
The 420°F (215°C) maximum exposure
temperature rating allows steam cleaning of
process equipment with up to 300 psig steam.
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 SRM/E uses
less energy when less heat is required.
- Easy to install, SRM/E 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.
- With lower installed cost than steam tracing,
SRM/E features less maintenance expense
- SRM/E can be overlapped without burnout,
which simplifies heat tracing of in-line process
equipment such as valves, elbows and
- Because SRM/E is self-regulating, overtemperature
conditions are minimized.
- Chromalox termination, splice, tee and end
seal kits reduce installation time.
- Freeze Protection
- Freeze Protection, High Exposure Temperature
- Process Maintenance, Low Temperature
- Process Maintenance, High Temperature
Features of SRM/E Cable
| Max. Maintenance Temp. (°F)
| Max. Exposure Temp. (°F) Power Off
| Max. W/Ft.
| Max. Circuit Length (Ft.)
| 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
|| Contact Factory
SRM/E Corrosion Selection Guide
|| C, CT
| Aqueous Solutions of Inorganic Compounds
| 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.