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UK Head Office

Home Place, Coldstream, TD12 4DT, UK




+44 (0)1890 883416

USA Office

1749 Northgate Blvd, Sarasota, FL34234, USA





End Lit Glass Fiber Optic Harnesses

The only UK manufacturer of raw fiber for fiber optic harnesses

Our range of glass fiber harnesses are made up of tails which contain many fine glass fibers sheathed in a black colored low smoke material.

The ends are finished with crimp terminations for small diameters and with brass or stainless steel ferrules for larger diameters. Ferrules allow end fittings to be attached to the fiber tails.

Due to the very fine nature of the glass fibers, they can be mixed up in the common end connector (a technique known as randomising) which allows for a more even light output between individual tails.

Larger diameters are available on request with soft silicone at the ends of the tails for use when articulated fittings are used in a tight space for the fiber bend radius.

Standard ferrule options are shown in the ordering codes table below, however, other options are available including 1/4" smooth, M7 and 8mm smooth. Ferrules are supplied in brass as standard or in stainless steel for use outdoors or in damp areas.

Features & Specifications

UFO glass fiber optic harnesses offer unparalleled light output, very long life and extraordinary color characteristics.

Benefits of UFO end lit glass fiber include:

  • Compliance with the IEC fire retardant standard 60332-1-2
  • Unique fused technology
  • Resistance to high temperatures which offers the greatest possible light output without heat filters
  • UV resistant common end
  • Flexible multi-fiber construction
  • High packing density which ensures compatibility with tightly focussed illuminators
  • High quality glass fibers offering exceptional transmission and color characteristics
  • Factory terminated common ends for superior quality, performance and longevity

Flexible sheathing

Megolon S540 is a thermoplastic, halogen free cable sheathing compound which exhibits an excellent level of fire retardancy. This product is specifically aimed at designs of cables requiring a good degree of flexibility and the ability to meet the more stringent fire test specifications.

Flammability & Toxicity Testing Results
S540 Toxicity Index (DEF STAN 02-713) 0.4
S540 Halogen Acid Gas Evolution (IEC 60754-1) Zero
S540 Flammability Temperature Index (ISO 4589-3) 330°C

Fiber Harness Ordering Codes

Size Approx. Active Diameter Approx. Outer Diameter Max No. of Tails Per Illuminator Minimum Bend Radius Termination Types
3/4 1mm (0.04") 2.2mm±0.1 (0.09") 600 5mm (0.2") crimp
1 1/2 1.4mm (0.05") 2.7mm±0.1 (0.11") 270 8mm (0.31") crimp/tube
1.8 1.8mm (0.07") 2.6mm±0.1 (0.1") 160 10mm (0.39") crimp/tube
3 2mm (0.08") 3.85mm±0.15 (0.15") 135 15mm (0.59") crimp/tube/34D/M10/M8
8 3mm (0.12") 4.85mm±0.15 (0.19") 70 18mm (0.71") 34D/M8/M10/8mm smooth/M7
14 4.0mm (0.16") 6.35mm±0.15 (0.25") 38 20mm (0.79") M8/M10/8mm smooth/M7/6mm smooth
18 4.5mm (0.18") 7.4mm±0.15 (0.29") 30 40mm (1.57") M8/M10/8mm smooth/M7
24 5.8mm (0.23") 8.7mm±0.3 (0.34") 18 50mm (1.97") M8/M10/8mm smooth
36 7.3mm (0.29") 10.1mm±0.3 (0.4") 13 70mm (2.76") M10/8mm smooth