National Cables 4 sq mm FR Twin Twisted Flexible (Class 5)
IS 694:2010 · FR flame retardant · Class 5 (Twin Twisted) conductor · 1100V · HCl < 15%.
How much do you need?
Indicative total based on the list price. Bulk and project pricing typically lower — share project details for delivered pricing from BIS-certified manufacturers.
₹173.46/m × quantity · excludes GST and dealer discount
At today's copper reference of ₹1340/kg (LME settle · frankfurter FX, 17 July 2026), the bare-conductor cost floor for a 4 mm² × 2-core construction is approximately ₹154.92/m. National Cables's list price of ₹173.46/m implies a 12% premium over conductor cost — covering insulation, processing, testing, packaging, and the brand's list margin.
The conductor floor is identical for every BIS-certified manufacturer at the same copper price — the premium spread is where brands differ. Quotes materially below the floor warrant a counterfeit or sub-spec-conductor check. Formula and assumptions on the methodology page; conductor mass per IS 8130:2013.
What you're buying
| Brand | National Cables |
|---|---|
| Master SKU | 4 sq mm FR Twin Twisted Flexible (Class 5) |
| Conductor size | 4 mm² |
| Cores | 2 |
| Flame grade | FR |
| Conductor construction | Class 5 (Twin Twisted) |
| Standard | IS 694:2010 |
| Voltage rating | 1100V |
| HCl limit | HCl < 15% |
| BIS licence | CM/L 8800140116 |
Manufacturer profile
National Cables has been a part of the Wire & Cable space since 1972. Now manufactured under Sunray Industries, a cable manufacturer and headquartered at K-51, Connaught Circus, New Delhi 110 001. IS 694:2010 and IS 17048:2018 Standards. Every cable carries the ISI mark under BIS licence CM/L 8800140116, verifiable at bis.gov.in.…
BIS CM/L CM/L 8800140116 · verifiable at bis.gov.in
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