SRF
Self-Regulating Heating Cable for Freeze Protection of 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
Product construction
1. Copper bus wire
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)
Long life time (semi-permanent)
Low energy consumption
Excellent heat resistance
Cut to length
Product characteristics and design information
information | |||
---|---|---|---|
Nominal power output | 10, 16, 24, 30 W/M | at 10℃ | |
Max. maintenance temperature | 65℃ | ||
Max. intermittent exposure temperature | 85℃ | T-rating : T6 | |
SRF 1 Service voltage | 100 - 130 Vac | ||
SRF2 | 200 - 254 Vac |
Fine Korea offers a full range of connection Kit and end seal Kit for Power connection, splices, and end seal .
These accessories must be used all together to ensure proper functioning of the product and compliance with warranty, code, and requirements of approvals.
Power output graph
Max. length (m) vs. Circuit breaker size
start-up temperature |
110V | 220V | |||||||
---|---|---|---|---|---|---|---|---|---|
20A | 30A | 40A | 50A | 20A | 30A | 40A | 50A | ||
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 |