Description
The Excel OM3 Loose Tube Fibre Optic Cable is a 50/125µm multimode fibre cable designed for internal and external network installations. Its lightweight construction and flexible design make it suitable for backbone cabling, campus networks, duct installations and cable tray routing where a non-armoured fibre cable is required.
The cable is constructed around a gel-filled, non-dripping and silicone-free PBT loose tube containing up to 24 colour-coded 250µm primary-coated fibres. Water-blocking E-glass strength members provide mechanical support, while the black LSZH (Low Smoke Zero Halogen) outer sheath offers low smoke performance and is suitable for installations where fire safety is an important consideration.
With a CPR classification of Dca-s2,d2,a1 to EN 13501-6, the cable provides improved fire performance over Eca-rated alternatives while remaining suitable for a wide range of commercial building applications. The water-blocked construction also helps prevent moisture ingress in external installations.
Specification
| Type of tube | Loose tube |
| Fibre type | Multimode 50/125 |
| Category | OM3 |
| 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 | Dca |
| Smoke development class according to EN 13501-6 | s2 |
| Euro class flaming droplets/particles according to EN 13501-6 |
d2 |
| Euro class acidity according to EN 13501-6 | a1 |
| Outer diameter approx. | 6 mm |
| Loose tube | Material: PBT Diameter: 2.8±0.1mm(2-12 cores), 3.5±0.20mm(16-24 cores) Thickness: 0.35±0.05mm |
| Strength member | Material: E-glass Yarns |
| Sheath | Material: LSZH Thickness: Typical 1.1mm |
| Cable diameter | Diameter (±0.3mm) 6.0±0.20mm (2-16 cores), 6.5±0.20mm(18-24 cores) |
| Cable weight | Approx. 40kg/km(2-16 cores), 45kg/km(18-24 cores) |
| Tensile strength | Installation: 1000N Working: 300N |
| Cable impact | 1J |
| Crush resistance | Installation: 1000N Working: 300N |
| Torsion | Change of Attenuation ≤ 0.10dB (SM fibre) 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 | @850nm 3.5 dB/km (Maximum) @1300nm 1.5 dB/km (Maximum) For any 1000 metre Max. 0.1dB/km |
| Overfilled modal bandwidth | @850nm ≥1500 MHz.km @1300nm ≥500 MHz.km |
| Effective modal bandwidth | @850nm ≥2000 MHz.km |
| Core diameter | 50±2.5um |
| Core non-circularity | ≤5% |
| Cladding diameter | 125.0±1.0um |
| Cladding non-circularity | ≤1% |
| Core cladding concentricity error | ≤1.0um |
| Primary coating diameter - uncoloured | 242±7um |
| Primary coating diameter - coloured | 250±15um |
| Primary coating non-circularity | ≤5% |
| Primary coating - cladding concentricity error | ≤12um |
| Group index of refraction | @850nm 1.482 @1300nm 1.477 |
| Proof stress level | ≥0.7(≈1% strain) Gpa |
| Typical average strip force | 1.7N |
| Strip force (peak) | 1.3≤Fpeak.strip≤8.9N |
| Numerical aperture | 0.200±0.015 |
| Fibre bending loss R-7.5mm | @850nm ≤0.2dB @1300nm ≤0.5dB |
| Fibre bending loss R-15mm | @850nm ≤0.1dB @1300nm ≤0.3dB |
Downloads
| Datasheet | Download |
| Declaration of Performance | Download |
| Certificate of Conformity | Download |
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
The Cable Intelligence Difference
Here's how we help you make sure your jobs are supplied without issues.