Grand Meyer® THC20 Heating Cable is a two-conductor resistive electric heating cable with a linear power output of 20 W/m. It is used for underfloor heating systems as a main or comfort heating source. It can also be used for snow and ice protection on small outdoor surfaces. The cable is supplied as ready-to-install heating sections, including a connection lead and sealed connection and end sleeves.

Specifications of the heating cable:

– Cable type: shielded two-conductor cable

– Power supply: ~230 V

– Linear power output at rated voltage: 20 W/m

– Maximum operating temperature: +90 °C

– Minimum installation temperature: –10 °C

– Minimum bending radius: 6 cm

– Outer cable diameter: 5.0 mm

– Installation lead powering the heating cable: 3.0 m, PVC 3×1.0 mm²

– Color of connected conductors: brown – phase (L), blue – neutral (N), yellow-green – ground (PE)

– Length tolerance: ± 2 %

Parameters: Cable article, Heating section length (m), Power (W), Current (A), Resistance (Ω)

– THC20-10, 10 m, 200 W, 0.9 A, 251 … 291 Ω

– THC20-15, 15 m, 300 W, 1.4 A, 168 … 194 Ω

– THC20-23, 23 m, 460 W, 2.1 A, 109 … 127 Ω

– THC20-32, 32 m, 640 W, 2.9 A, 79 … 91 Ω

– THC20-45, 45 m, 900 W, 4.1 A, 56 … 65 Ω

– THC20-57, 57 m, 1140 W, 5.2 A, 44 … 51 Ω

– THC20-70, 70 m, 1400 W, 6.4 A, 36 … 42 Ω

– THC20-85, 85 m, 1700 W, 7.7 A, 29 … 34 Ω

– THC20-98, 98 m, 1960 W, 8.9 A, 25 … 30 Ω

– THC20-115, 115 m, 2300 W, 10.5 A, 21 … 25 Ω

– THC20-160, 160 m, 3200 W, 14.5 A, 15 … 19 Ω

Heating cable design:

– Heating conductors twisted from CuNi, CuCr, or NiCr alloys depending on resistance

– Inner insulation made of new-generation heat-resistant cross-linked polyethylene XPLE

– Aluminum foil shield

– Drain wire made of twisted Al-Mg wires

– Outer insulation made of heat-resistant modified polyvinyl chloride (PVC)

Package contents:

– Grand Meyer® THC20 non-sheathed heating cable

– Self-extinguishing PVC corrugated conduit with temperature sensor holder

– System installation instructions

– Warranty card

Recommendations for selecting Grand Meyer® THC20 non-sheathed heating cable:

Parameters: Cable article, Length (m), Power (W), Maximum heating surface area (m²) at spacing (power density, W/m²)

– THC20-10, 10 m, 200 W, 0.75 m² @ 7.5 cm (267 W/m²), 1.00 m² @ 10 cm (200 W/m²), 1.25 m² @ 12.5 cm (160 W/m²), 1.50 m² @ 15 cm (133 W/m²), 1.75 m² @ 17.5 cm (114 W/m²)

– THC20-15, 15 m, 300 W, 1.13 m² @ 7.5 cm (267 W/m²), 1.50 m² @ 10 cm (200 W/m²), 1.88 m² @ 12.5 cm (160 W/m²), 2.25 m² @ 15 cm (133 W/m²), 2.63 m² @ 17.5 cm (114 W/m²)

– THC20-23, 23 m, 460 W, 1.73 m² @ 7.5 cm (267 W/m²), 2.30 m² @ 10 cm (200 W/m²), 2.88 m² @ 12.5 cm (160 W/m²), 3.45 m² @ 15 cm (133 W/m²), 4.03 m² @ 17.5 cm (114 W/m²)

– THC20-32, 32 m, 640 W, 2.40 m² @ 7.5 cm (267 W/m²), 3.20 m² @ 10 cm (200 W/m²), 4.00 m² @ 12.5 cm (160 W/m²), 4.80 m² @ 15 cm (133 W/m²), 5.60 m² @ 17.5 cm (114 W/m²)

– THC20-45, 45 m, 900 W, 3.38 m² @ 7.5 cm (267 W/m²), 4.50 m² @ 10 cm (200 W/m²), 5.63 m² @ 12.5 cm (160 W/m²), 6.75 m² @ 15 cm (133 W/m²), 7.88 m² @ 17.5 cm (114 W/m²)

– THC20-57, 57 m, 1140 W, 4.28 m² @ 7.5 cm (267 W/m²), 5.70 m² @ 10 cm (200 W/m²), 7.13 m² @ 12.5 cm (160 W/m²), 8.55 m² @ 15 cm (133 W/m²), 9.98 m² @ 17.5 cm (114 W/m²)

– THC20-70, 70 m, 1400 W, 5.25 m² @ 7.5 cm (267 W/m²), 7.00 m² @ 10 cm (200 W/m²), 8.75 m² @ 12.5 cm (160 W/m²), 10.50 m² @ 15 cm (133 W/m²), 12.25 m² @ 17.5 cm (114 W/m²)

– THC20-85, 85 m, 1700 W, 6.38 m² @ 7.5 cm (267 W/m²), 8.50 m² @ 10 cm (200 W/m²), 10.63 m² @ 12.5 cm (160 W/m²), 12.75 m² @ 15 cm (133 W/m²), 14.88 m² @ 17.5 cm (114 W/m²)

– THC20-98, 98 m, 1960 W, 7.35 m² @ 7.5 cm (267 W/m²), 9.80 m² @ 10 cm (200 W/m²), 12.25 m² @ 12.5 cm (160 W/m²), 14.70 m² @ 15 cm (133 W/m²), 17.15 m² @ 17.5 cm (114 W/m²)

– THC20-115, 115 m, 2300 W, 8.63 m² @ 7.5 cm (267 W/m²), 11.50 m² @ 10 cm (200 W/m²), 14.38 m² @ 12.5 cm (160 W/m²), 17.25 m² @ 15 cm (133 W/m²), 20.13 m² @ 17.5 cm (114 W/m²)

– THC20-160, 160 m, 3200 W, 12.00 m² @ 7.5 cm (267 W/m²), 16.00 m² @ 10 cm (200 W/m²), 20.00 m² @ 12.5 cm (160 W/m²), 24.00 m² @ 15 cm (133 W/m²), 28.00 m² @ 17.5 cm (114 W/m²)

Installation of Grand Meyer® THC20 non-sheathed heating cable:

– 1. Concrete screed (floor slab)

– 2. Thermal insulation

– 3. THC20 heating cable section

– 4. Cement leveling layer 3 to 5 cm thick

– 5. Temperature sensor (installed in a corrugated conduit with a sealed end)

– 6. Fixing tape

– 7. Floor covering (tile, marble, laminate, linoleum, etc.)

– 8. Thermostat

Grand Meyer® heating mats and cables are manufactured in Latvia, Europe.

The EcoNG170 heating mats and THC20 heating cables come with a 20-year warranty.