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SRF
- SRF Self-Regulating Heating Cable / Freeze Protection for Pipework
- FINE SRF 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 Series is a self-regulating cable heater, working on the PTC principle, requiring low electrical consumption.
SRF Series is most suitable for protection of plumbs and pipes from freezing in winter.
Product construction
- 1. Copper bus wire(16AWG)
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
- SRF Series is post-treated under elevated temperature in annealing process to give its stability in long-term operation without losing heat output.
- The electrical consumption of SRF Series is low due to its unique PTC property.
- SRF Series is treated by irradiation crosslinking reaction, providing the same level of thermosetting property as XLPE.
- The heat generator of SRF Series is composed of the infinite parallel connection of carbon particles, allowing it to be cut to the exact length required.
1. Long life time (semi-permanent)
2. Low energy consumption
3. Excellent heat resistance
4. Cut to length
Product characteristics and design information
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Nominal power output 10,16,24,30 W/M at 10℃ Max. maintenance temperature 65℃ Max. intermittent exposure temperature 85℃ T-rating : T6 Service voltage SRF1 100 - 130 Vac SRF2 200 - 254 Vac
Power output graph
Max. length(m) vs. Circuit breaker size
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start-up
temperature110V 220V 15A 20A 30A 40A 15A 20A 30A 40A SRF10-CR/CT 10℃ 105 - - - 205 - - - 0℃ 90 105 - - 175 205 - - -20℃ 65 90 105 - 125 180 205 - -40℃ 50 65 85 - 95 130 170 - SRF16-CR/CT 10℃ 70 80 - - 130 155 - - 0℃ 60 70 80 - 110 140 155 - -20℃ 50 60 70 80 90 120 140 155 -40℃ 40 45 65 75 70 90 135 150 SRF24-CR/CT 10℃ 60 70 75 - 110 135 150 - 0℃ 50 60 70 75 90 120 135 150 -20℃ 35 45 60 70 65 90 120 135 -40℃ 30 40 50 60 55 75 100 115 SRF30-CR/CT 10℃ 40 50 60 - 80 95 120 - 0℃ 35 45 50 60 70 85 100 120 -20℃ 30 35 45 55 55 70 90 110 -40℃ 25 30 40 50 45 60 80 100
Certificate
