Clad series FM-F

Steel tape armour

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 has additional mechanical 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)

  • Bedding: LSZH-HFFR (Low Smoke Zero Halogen - Halogen Free Flame Retardant), fire-retardant

  • Armour: Double galvanized steel helical tape

  • 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 transparency 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)



Halogen free

Halogen free

Low smoke

Low smoke

Mineral oil resistant

Mineral oil resistant

UV resistant

UV resistant

Water immersion

Water immersion


Sheath Conductors
Multiconductors alphanumeric identification


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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 under armour mm External diameter mm Weight kg/km Code
10x111.615.4351FM 1010 F
12x112.516.3392FM 1210 F
14x113.317.1431FM 1410 F
19x115.219.0525FM 1910 F
24x116.820.6615FM 2410 F
30x118.622.4731FM 3010 F
37x120.424.2849FM 3710 F
48x122.926.71026FM 4810 F
5x1.510.013.8306FM 0515 F
7x1.510.614.4342FM 0715 F
10x1.512.516.3413FM 1015 F
12x1.513.517.3464FM 1215 F
14x1.514.418.2514FM 1415 F
19x1.516.520.3633FM 1915 F
24x1.518.322.1748FM 2415 F
30x1.520.224.0894FM 3015 F
37x1.522.226.01046FM 3715 F
48x1.525.029.01290FM 4815 F
3x2.510.013.8313FM 0325 F
4x2.510.013.8321FM 0425 F
5x2.510.914.7368FM 0525 F
7x2.511.915.7433FM 0725 F
10x2.514.117.9531FM 1025 F
12x2.515.319.1603FM 1225 F
14x2.516.320.1673FM 1425 F
19x2.518.722.5842FM 1925 F
24x2.520.724.51007FM 2425 F
30x2.522.926.71211FM 3025 F
37x2.525.329.11430FM 3725 F
48x2.528.933.11829FM 4825 F
2x410.013.8319FM 0240 F
3x410.314.1349FM 0340 F
4x411.315.1405FM 0440 F
5x412.316.1470FM 0540 F
7x413.517.3564FM 0740 F
10x416.019.8702FM 1040 F
12x417.421.2804FM 1240 F
14x418.622.4904FM 1440 F
19x421.325.11148FM 1940 F
24x423.727.51385FM 2440 F
30x426.330.31690FM 3040 F
37x429.433.62061FM 3740 F