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Universal Fire Secure CST Central Tube Cable

Universal Fire Secure CST Central Tube Cable
  • Choice of fibre types
  • Low space requirements
  • Longitudinal and transverse waterproofing
  • For universal use
  • Good fire protection profile
  • Cca s1a d1 a1 acc. to EN 50575 / EN 50390

Universal Fire Secure CST Central Tube Cable

Daro Connectivity is an authorised distributor of Kerpen Datacom’s GigaLine® KL-U-DQ(ZN)H(SR)H 1xn G/E 180–Cca range of Universal fire secure CST armoured central tube cables with 180-minute circuit integrity (CI) for fixed installation. Longitudinally and transversely waterproof with highly effective rodent protection.

Fibre optic universal cable with central jelly filled loose tube, longitudinally and transversally watertight, with glass yarns, inner sheath, corrugated steel tape and outer sheath with CI.

According to the fibre grade, best suitable for all applications of classes OF 300 to OF 10000. House entries without additional interconnection points (Splices) possible. Installation indoors and outdoors in dry conduits, on covered cable trays or directly in the ground (sand bed).

For automated cable pulling with cable winches the use of tensile-force-recording equipment is obligatory.

Maximum twenty-four 250-micron fibres within a central filled tube surrounded by glass yarns for rodent protection, inner low smoke zero halogen (LSZH) sheath, steel tape armour and encapsulated within a low smoke zero halogen (LSZH) UV resistant outer cable sheath.

Universal Fire Secure CST central tube cables are available with various fibre performance grades to suit a wide range of installation requirements. Spanning single mode, laser optimised multi-mode (LOMMF) 50/125 grades OM3, OM4 and the more recent wide band multi-mode (WBMMF) OM5 fibre.

Contact Us for further information and enquiries regarding GigaLine® KL-U-DQ(ZN)H(SR)H 1xn G/E 180–Cca range of Universal fire secure CST central tube fibre optic cable.

Applications / Standards

  • EN 50575
  • Campus, Backbone cabling
  • EN 50173
  • Classes OF 300 to OF 10000*
  • EN 50399
  • ISO/IEC 11801
  • IEC 60793-2 series
  • DoP – CDERF00000085
* depends upon grade of fibre used
Central filled loose tube with max. 24 fibres, fibre colour code acc. to IEC 60304, loose tube colour: yellow (E9/125), green (G50/125), blue (G62,5/125)
Strain ReliefNon-metallic (Glass rovings)
Inner SheathHalogen-free, flame-retardant compound
ArmouringCorrugated steel cladding as fire barrier
Outer SheathHalogen-free, flame-retardant compound
Sheath ColourBlack
Thermal Properties
Transport/Storage-25 °C to +70 °C
Installation-5 °C to +50 °C
Operating Temperature-20 °C to +70 °C
Mechanical Characteristics
Minimum Bend Radius – static10 x outer diameter
Minimum Bend Radius – dynamic15 x outer diameter
Maximum Crush Strength – short term3500 N/decimetre
Maximum Crush Strength – long term2500 N/decimetre
Fire Behaviour
Smoke DensityIEC 61034
Halogen FreeIEC 60754-1
Flame RetardancyIEC 60332-1-2, IEC 60332-3-22, Cat. A
ClassCca s1a d1 a1 acc. to EN 50575 / EN 50390
Fire Load2.80 / 2.80 / 2.80 / 2.80 / 2.80 MJ/m (4F/6F/8F/12F/24F)

Other Characteristics

Resistance to fire of unprotected small cables for use in emergency circuits acc. to EN 50200:2006 (830 +40 / –0°C, 180 min):
Max. attenuation change: max. 1.0 dB at 1310 nm / max. 1.0 dB at 1550 nm
(VDE test report: 5005019-9601-0001/260492-TL6-1 to -9)


No. of Fibres
O.D (MM)
Weight (Kg/km)
Daro Connectivity Order Reference
OM3 bendable G50/1251×412.5218DFP-LKD8UA5C1K20000
OM4 bendable G50/1251×412.5218DFP-LKD8UA7C1K20000
OM5 bendable G50/1251×412.5218DFP-LKD8UA9C1K20000
OS2 SMF28 ultra E9/1251×412.5218DFP-LKD8UC7C1K20000
OM3 bendable G50/1251×612.5218DFP-LKD8UA5C1K30000
OM4 bendable G50/1251×612.5218DFP-LKD8UA7C1K30000
OM5 bendable G50/1251×612.5218DFP-LKD8UA9C1K30000
OS2 SMF28 ultra E9/1251×612.5218DFP-LKD8UC7C1K30000
OM3 bendable G50/1251×812.5218DFP-LKD8UA5C1K40000
OM4 bendable G50/1251×812.5218DFP-LKD8UA7C1K40000
OM5 bendable G50/1251×812.5218DFP-LKD8UA9C1K40000
OS2 SMF28 ultra E9/1251×812.5218DFP-LKD8UC7C1K40000
OM3 bendable G50/1251×1212.5218DFP-LKD8UA5C1K60000
OM4 bendable G50/1251×1212.5218DFP-LKD8UA7C1K60000
OM5 bendable G50/1251×1212.5218DFP-LKD8UA9C1K60000
OS2 SMF28 ultra E9/1251×1212.5218DFP-LKD8UC7C1K60000
OM3 bendable G50/1251×2412.5218DFP-LKD8UA5C1K90000
OM4 bendable G50/1251×2412.5218DFP-LKD8UA7C1K90000
OM5 bendable G50/1251×2412.5218DFP-LKD8UA9C1K90000
OS2 SMF28 ultra E9/1251×2412.5218DFP-LKD8UC7C1K90000

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Universal Fire Secure CST Central Tube Cable