Excel Enbeam OM4 Multimode 50/125 Loose Tube B2ca-s1a,d0,a1 Fibre Optic Cable Black (Per Metre)

The Excel Enbeam OM4 Distribution Fibre Cable is a tight-buffered 50/125µm multimode fibre optic cable designed for internal building and backbone network installations. Suitable for data centres, enterprise networks and structured cabling systems, it provides OM4 performance while maintaining backwards compatibility with OM3 infrastructure. The cable construction uses between 4 and 24 colour-coded 900µm tight-buffered fibres, supported by aramid yarn and a central GFRP (Glass Fibre Reinforced Polymer) strength member. This design provides good tensile performance and simplifies termination compared to loose tube alternatives, making it well suited to indoor fibre distribution and riser applications. A black LSZH (Low Smoke Zero Halogen) outer sheath helps minimise smoke and harmful emissions in the event of fire, while the cable's B2ca-s1a,d0,a1 CPR classification makes it suitable for installations requiring a high level of fire performance compliance. Specification Type of tube Loose tube Fibre type Multi mode 50/125 Category OM4 Rodent resistant Yes Outer sheath material Copolymer, thermoplastic (LSOH) Outer sheath colour Black Flame retardant according to IEC 60332-1-2 Yes Low smoke (acc. IEC 61034-2) Yes Reaction-to-fire class according to EN 13501-6 B2ca Smoke development class according to EN 13501-6 s1a Euro class flaming droplets/particles according to EN 13501-6 d0 Euro class acidity according to EN 13501-6 a1 Outer diameter approx 6 mm Loose tube Material: LSZH Diameter: 2.8 ± 0.1 mm (2-12 cores), 3.5 ± 0.20 mm (16-24 cores) Thickness: 0.35 ± 0.05 mm Strength member Material: E-glass Yarns Sheath Material: LSZH Thickness: Typical 1.1 mm Cable diameter (± 0.3 mm) 6.0 ± 0.20 mm (2-16 cores), 6.5 ± 0.20 mm (18-24 cores) Cable weight Approx. 40kg/km (2-16 cores), 45kg/km (18-24 cores) Tensile strength Installation: 660 N Working: 200 N Crush resistance Installation: 1000 N Working: 300 N Torsion Change of attenuation ≤ 0.30dB (MM fibre) Temperature range Installation -30°C to +60°C Working -30°C to +60°C Storage -40°C to +60°C Bending radius Short term: 20 x Diameter Long term: 10 x Diameter Water penetration No water on free end Attenuation @850 nm 3.5dB/km (maximum) @1300 nm 1.5dB/km (maximum) For any 1000 metre Max. 0.1dB/km Overfilled modal bandwidth @850 nm ≥3500 MHz/km @1300 nm ≥500 MHz/km Effective modal bandwidth @850 nm ≥4700 MHz/km Core diameter 50±2.5 µm Core non-circularity ≤5% Cladding diameter 125.0±1.0 µm Cladding non-circularity ≤1% Core - cladding concentricity error ≤1.5 µm Primary coating diameter - uncoloured 242±7 µm Primary coating diameter - coloured 250±15 µm Primary coating non-circularity ≤5% Primary coating - cladding concentricity error ≤12 µm Group index of refraction @850 nm 1.482 @1300 nm 1.47 Proof stress level ≥0.7(≈1% strain) Gpa Typical average strip force 1.7 N Strip force (peak) 1.3 ≤ Fpeak.strip ≤8.9 N Numerical aperture 0.200 ± 0.015 Fibre bending loss R-7.5 mm @850 nm ≤0.2dB @1300 nm ≤0.5dB Fibre bending loss R-15 mm @850 nm ≤0.1dB @1300 nm ≤ 0.3dB Downloads Datasheet Download Declaration of performance Download Certificate of conformity Download