Description
The Excel OM3 Tight Buffered Fibre Optic Cable is a 50/125µm multimode fibre cable designed for both internal and external installations. Its tight-buffered construction makes it suitable for direct termination, helping to simplify installation and reduce preparation time compared to loose tube alternatives.
Designed for structured cabling, campus networks, building backbones and data communications infrastructure, the cable contains up to 24 colour-coded 900µm tight-buffered fibres protected by E-glass strength members and a black LSZH (Low Smoke Zero Halogen) outer sheath. The compact, lightweight design allows for straightforward routing through containment systems, risers and service voids.
The cable is CPR rated to EN 13501-6 Cca-s1a,d0,a1, making it suitable for installations where enhanced fire performance is required. The LSZH sheath also helps minimise smoke and corrosive gas emissions in the event of fire. Rodent resistance and a wide operating temperature range make the cable suitable for a variety of internal and external environments.
Specification
| Type of tube | Tight |
| Fibre type | Multi mode 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 | Cca |
| 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 | 6.5 mm |
| Tight buffered fibre | Material: LSZH Diameter: 0.85±0.05mm |
| Strength member | Material: E-glass Yarns |
| Sheath | Material: LSZH Thickness: Typical 1.1mm |
| Cable diameter | Approx. 6.5mm (4 cores), 6.6mm (6 cores), 7.0mm (8 cores) 7.0mm (12 cores), 8.0mm (16 cores), 8.5mm (24 cores) |
| Cable weight | Approx. 34kg/km (4 cores), 36kg/km (6 cores), 39kg/km (8 cores) 43kg/km (12 cores), 52kg/km (16 cores), 63kg/km (24 cores) |
| Tensile strength | Installation: 800N(≤12 cores), 1100N(>12 cores) Working: 400N(≤12 cores), 550N(>12 cores) |
| 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 |
| 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 |
| Declaration 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.