Gemini twisted paired cables are best suited for telephone and switchboard cabling applications. The cables can be used for switchboard and internal telephone wiring in apartments, high-rise buildings, offices, factories. hotels, residential complexes, etc. The most common sizes are 2 Pair, 3 Pair, 4 Pair and 5 Pair in conductor of 0.4 mm or 0.5 mm.


Low Power Loss

Low Crosstalk

Fire Retardant Sheath

Low Attenuation

Range Of Product

1 Pair to 20 Pair(0.4mm / 0.5mm)

Technical Details :

Conductor : The Central Conductor is made of bare annealed solid electrolytic grade of copper

Insulation : Premium quality HDPE is used. This Server for low attenuation and minimized cross talk

Twisted Pairs : The cores are carefully twisted with suitable lays and bunched together

Packing : Available in 90 meter and 500 meter. higher lengths available on special request.

Product Specification

Construction 1 Pair 2 Pair 3 Pair 4 Pair 5 Pair
Conductor Material 0.4 mm diameter(nominal) Solid Annealed Bare Copper of Conductivity & Purity
Insulation Material(0.4 & 0.5mm Diameter) High Density Polyethylene
Insulation Thickness(Average) for 0.4mm diameter 0.17mm 0.17mm 0.17mm 0.17mm 0.17mm
Insulation Thickness(Average) for 0.5mm diameter 0.20mm 0.20mm 0.20mm 0.20mm 0.20mm
Diameter of insulated Conductor for 0.4mm diameter 0.74mm 0.74mm 0.74mm 0.74mm 0.74mm
Diameter of insulated Conductor for 0.5mm diameter 0.92mm 0.92mm 0.92mm 0.92mm 0.92mm
Rip cord(0.4 & 0.5 mm diameter) Nylon
Colour Combination White-Blue/Blue White-Orange/Orange White-green/green White-Brown/Brown White-Grey/Grey
PVC Jacket(0.4mm diameter & 0.5mm Diameter) FRPVC compound with high oxygen index(Loi = 29%)*
PVC Thikness Minimum (for 0.4mm) 0.32 0.32 0.32 0.32 0.32
PVC Thikness Minimum (for 0.5mm) 0.32 0.32 0.32 0.62 0.62
Approximate Outer Diameter (for 0.4mm) 2.40 2.73 3.20 3.55 4.00
Approximate Outer Diameter (for 0.5mm) 2.74 3.15 3.71 4.90 5.43
Packing Length (meters) Available in 90 meter and 500 meter
Electrical Parameters
Conductor Resistance(maximum) ohm/km at 20°c 143@/km for 0.4mm diameter & 92.2@/km for 0.5mm diameter
Mutual Capacitance (maximum) Nano faradas/km 50 50 50 50 50
Insulation Resistance in Air (minimum) Meg-ohms/km 1000 1000 1000 1000 1000
Capacitance Unbalance Pair to Pair (maximum) pico farad/km 250 250 250 250 250

Gemini Cables

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