SRF(s) Self Regulating Heating Cable



SRF(s) Small Geometry Self-Regulating Heating Cable

FINE SRF(s) Series for freeze protection generates heat by a material of semi-conductor,
showing a characteristic of PTC (Positive Temperature Coefficient).

PTC is characterized by the power output of heating cable adjusted to compensate for variations in ambient temperature.
It produces more heat if the temperature drops and less heat if the temperature rises.

SRF(s) Series is a self-regulating cable heater, working on the PTC principle, requiring low electrical consumption.
SRF(s) Series is most suitable for protection of plumbs and pipes from freezing in winter.

Thanks to the small geometry (micro size), SRF(s) Series Series provides the solutioin for in-pipe application.

Product construction                                                              

1.Copper bus wire (18AWG)
2. Self-regulating conductive core
3. Inner adhesive jacket.
4. Modified polyolefin jacket
5. Tinned-copper braid
6. Modified polyolefin outer jacket (-CR)
Fluoropolymer outer jacket (-CT)

Features of FINE SRF Series

1.Long life time (semi-permanent)

SRF(s) Series is post-treated under elevated temperature in annealing process to give its stability in long-term operation without losing heat output.

2.Low energy consumption

The electrical consumption of SRF(s) Series is low due to its unique PTC property.

3.Excellent heat resistance

SRF(s) Series is treated by irradiation crosslinking reaction, providing the same level of thermosetting property as XLPE.

4.Cut to length

The heat generator of SRF(s) Series is composed of the infinite parallel connection of carbon particles, allowing it to be cut to the exact length required.

Product characteristics and design information

Nominal power output

10,16 W/M

at 10℃

Max. maintenance temperature


Max. intermittent exposure temperature


T-rating : T6

Service voltage


100 - 130 Vac

Service voltage


200 - 254 Vac


Power output graph

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