DEVIflex™ 18T
Electric Underfloor Heating Cable
DEVIflex™ 18 is a high-quality, fully screened twin-conductor electric underfloor heating cable designed for reliable heat distribution in indoor floor heating systems and selected pipe tracing applications. Its robust round cable construction and durable outer sheath support straightforward installation across a wide range of floor constructions.
To ensure safe operation and effective temperature control, the heating cable must always be used together with an appropriate thermostat. Proper control helps prevent overheating and enables the heating system to operate according to the selected temperature settings.
The cable features a factory-mounted cold lead with solid conductors that supports efficient installation. A visible and clearly defined connection between the heating cable and cold lead helps installers identify the transition point during installation.
Every DEVIflex™ cable undergoes comprehensive quality control, including testing of Ohmic resistance, high-voltage performance, and material quality. This quality assurance process supports long-term reliability and is backed by the DEVIwarranty™, subject to applicable warranty terms and conditions.
In addition, DEVIflex™ cables are supported by an Environmental Product Declaration (EPD). An EPD provides independently verified information about the environmental impacts of a product throughout relevant life cycle stages, helping support informed specification and procurement decisions.
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Key Benefits
- Fast and straightforward installation
- Suitable for multiple indoor heating applications
- Fully screened construction for enhanced cable protection
- Durable design developed for long service life
- Comprehensive product testing and quality control
- Supported by DEVIwarranty™ in accordance with warranty conditions
- Environmental impact information available through an EPD
Specification
|
Nominal voltage |
230 V~ |
|
Construction |
Round, twin conductor with 360° screen, one cold lead |
|
Output |
18 W/m @ 230 V~ |
|
Max. permissible use temperature, powered |
75 °C |
|
Max. permissible use temperature, unpowered |
90 °C |
|
Cable dimensions |
Ø 6,9 mm |
|
Deformation strength |
1500 N |
|
Pulling strength |
400 N |
|
Conductor insulation |
XLPE |
|
Outer sheath |
PVC, red |
|
Screen |
100% coverage; alu-foil; 0,5 mm² tinned copper drain wire |
|
Cold lead |
2,3 m DTCL, 3G (1,5 or 2,5)mm² |
|
Min. installation temperature |
-5 °C |
|
Bending Ø, min. |
5 cm |
|
IP Class |
IPX7 |
Warranty scope
Compliance
Standard compliance: • IEC60800:2009
GARAN Label
| Item no. | Cable length [m] | Heating output [W] | Cable resistance [Ohm] | Cold lead conductor quantity | Cable output [W/m] | Supply voltage [V] AC | Cold lead length [m] | Cold lead size [mm²] |
|---|---|---|---|---|---|---|---|---|
| 140F1235 | 7.300 m | 130 W | 410.3000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1236 | 10.000 m | 180 W | 294.0000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1400 | 12.800 m | 230 W | 230.4000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1237 | 15.000 m | 270 W | 195.0000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1401 | 17.500 m | 310 W | 171.2000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1238 | 22.000 m | 395 W | 134.2000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1239 | 29.000 m | 535 W | 98.6000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1240 | 34.000 m | 615 W | 86.4000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1241 | 37.000 m | 680 W | 77.7000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1242 | 44.000 m | 820 W | 64.7000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1243 | 52.000 m | 935 W | 56.7000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1410 | 54.000 m | 1005 W | 52.7000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1244 | 59.000 m | 1075 W | 49.3000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1245 | 68.000 m | 1220 W | 43.4000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1246 | 74.000 m | 1340 W | 39.5000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1247 | 82.000 m | 1485 W | 35.5000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1248 | 90.000 m | 1625 W | 32.6000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 1.5 mm² |
| 140F1249 | 105.000 m | 1880 W | 28.1000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 2.5 mm² |
| 140F1250 | 118.000 m | 2135 W | 24.8000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 2.5 mm² |
| 140F1251 | 131.000 m | 2420 W | 21.9000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 2.5 mm² |
| 140F1252 | 155.000 m | 2775 W | 19.1000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 2.5 mm² |
| 140F1402 | 170.000 m | 3050 W | 17.3000 Ohm | 3 | 18 W/m | 230 V | 2.3 m | 2.5 mm² |