Block series FM-W

Copper tape shield

Flexible Cu 1 up to 4mm²
Up to 48 Conductors

Control, signalling, measuring and protective equipment, electric controls of home installations. Use in closed environments with a high concentration of people (airports, hospitals, trains, cinemas, shopping centers, tunnels) and in control rooms with electronic equipment sensitive to the exposure of corrosive gases. Installed in conduits, trays, cable ladders, in direct open air or indoors, buried in a trench or in ducts. It provides additional electromagnetic protection.


  • Temperature rating: 90ºC (operating),130ºC (overload) and 250ºC (short circuit)

  • Voltage rating: 600/1000V AC, maximum 1200V AC / 1500V DC

  • Construction requirements: As per IRAM 2178-1 – IEC 60502-1

  • Conductor requirements: As per IRAM NM 280 – IEC 60228

  • Conductor: Annealed electrolytic copper - Flexible stranding class 5

  • Insulation: XLPE (Cross-linked polyethylene)

  • Shield: Annealed copper tape helical wrap with 100% coverage and overlap

  • Sheath: LSZH-HFFR (Low Smoke Zero Halogen - Halogen Free Flame Retardant), fire-retardant, sunlight and oils resistant

  • Fire requirements: As per IEC 60332-3-24

  • Standard for halogen absence and corrosive gases: As per IEC 60754-1/2

  • Smoke opacity requirements: As per IEC 61034-1/2

  • Toxicity standard: As per NES 713 – CEI 20.37

  • Oils requirements: As per ICEA S 73-532

  • Outdoors requirements: As per UL 2556 (UV rays)

  • Water behaviour requirements: Suitable AD7 (Occasional water submersion)

Electromagnetic interference protection

Electromagnetic interference protection



Halogen free

Halogen free

Low smoke

Low smoke

Mineral oil resistant

Mineral oil resistant

UV resistant

UV resistant


Sheath Conductors
Multiconductors alphanumeric identification


falta label en campo?
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Constructive variants

The information provided corresponds to the standard version, and different alternatives of insulation and / or covering materials can be used upon request.


Resistances and intensity of admissible currents

Nominal cross-section sq mm² Electrical resistance at 20ºC in C.C Ohm/km Electrical resistance at 90ºC in C.A. Ohm/km Current-carrying capacity in free air. At 40°C as per IEC 364-5-523. Formations in perforated trays or ladder type. (Ampere)
2x 4x 7x 10x 19x 30x 48x

As from seven-conductors, we’ve additionally applied the correction factor for more than three conductors the chart 310.15 (B)(3)(a) of the NFPA70.


Cable Formation, N° Cond. x cross-section (mm²) Diameter below shield mm External diameter mm Weight kg/km Code
5x19.012.4220FM 0510 W
7x19.813.1246FM 0710 W
10x111.614.9308FM 1010 W
12x112.515.8345FM 1210 W
14x113.416.7380FM 1410 W
19x115.218.5466FM 1910 W
24x116.820.1548FM 2410 W
30x118.621.9643FM 3010 W
37x120.423.8767FM 3710 W
48x122.926.3934FM 4810 W
3x1.59.012.4222FM 0315 W
4x1.59.012.4226FM 0415 W
5x1.59.713.1248FM 0515 W
7x1.510.613.9291FM 0715 W
10x1.512.615.9366FM 1015 W
12x1.513.616.9412FM 1215 W
14x1.514.517.8458FM 1415 W
19x1.516.519.8568FM 1915 W
24x1.518.321.6675FM 2415 W
30x1.520.223.6813FM 3015 W
37x1.522.225.6957FM 3715 W
48x1.525.028.41177FM 4815 W
2x2.59.012.4227FM 0225 W
3x2.59.112.5242FM 0325 W
4x2.510.013.3272FM 0425 W
5x2.510.914.2315FM 0525 W
7x2.511.915.2376FM 0725 W
10x2.514.117.5476FM 1025 W
12x2.515.318.6543FM 1225 W
14x2.516.319.7608FM 1425 W
19x2.518.722.0767FM 1925 W
24x2.520.724.1937FM 2425 W
30x2.522.926.31119FM 3025 W
37x2.525.328.71330FM 3725 W
48x2.528.932.71714FM 4825 W
2x49.713.0259FM 0240 W
3x410.313.6299FM 0340 W
4x411.314.6351FM 0440 W
5x412.315.7411FM 0540 W
7x413.516.8500FM 0740 W
10x416.119.4638FM 1040 W
12x417.420.7734FM 1240 W
14x418.621.9829FM 1440 W
19x421.324.71075FM 1940 W
24x423.727.11304FM 2440 W
30x426.329.91586FM 3040 W
37x429.433.21945FM 4840 W