FR (flame retardant) PVC-insulated copper house wire, 1100 V grade, in 90 m coils from 1.0 to 6.0 sq mm, with the ISI mark to IS 694 on the pack.
- FR PVC insulation — flame retardant, as printed on the pack.
- 1100 V grade, as printed on the pack.
- ISI mark with IS 694 printed on the pack.
- Pack states 100% electrolytic grade copper conductor.
- Single-core, multi-strand copper for house and building wiring.
- 90 m coils in 1.0, 1.5, 2.5, 4.0 and 6.0 sq mm — choose the size from the options.
- One range covers light points, sockets, AC and geyser circuits and sub-mains.
Single-core PVC-insulated copper wire is what homes, flats, shops and offices are wired with. It is pulled through PVC conduit or laid in casing-capping, one wire each for the phase, the neutral and the earth, and its size is the copper cross-section in sq mm: the bigger the size, the more current it can safely carry.
This wire has FR (flame retardant) PVC insulation, which resists the spread of flame along the wire, and the pack is marked 1100 V grade with the ISI mark to IS 694. It comes in five sizes up to 6.0 sq mm, so one range covers every circuit in a typical home. For wire with heat-resistant (HR-FR) insulation, see our Gold range.
Typical sizes by circuit
- 1.0 sq mm — typically lighting circuits and light points.
- 1.5 sq mm — typically lighting and fan circuits.
- 2.5 sq mm — typically socket (power point) circuits.
- 4.0 sq mm — typically AC and geyser circuits.
- 6.0 sq mm — typically sub-mains to a flat or floor distribution board.
These are typical sizes for copper wire in conduit. Your electrician sizes each circuit for its load, run length and MCB, and the MCB must never be rated above what the wire can carry.
Where to use it
- New house wiring in PVC conduit or casing-capping.
- Rewiring old homes, flats, shops and offices.
- Sub-mains between the main board and flat or floor distribution boards.
How to install
- Plan the circuits with your electrician and pick the size for each one.
- Pull the wires through PVC conduit or lay them in casing-capping without overfilling it.
- Keep one colour for each role — commonly red for phase, black for neutral and green for earth.
- Make joints only in junction or switch boxes with proper connectors, never inside the conduit.
- Connect each circuit to an MCB that suits the wire size, and test the insulation before switching on.
House wiring must be done by a licensed electrician, with the supply switched off, to the local wiring rules.
Frequently asked questions
- FR or HR-FR — which wire should I buy?
- FR wire is the usual choice for house wiring. HR-FR adds heat resistance for hot roof slabs, crowded conduits and heavily loaded circuits — see our Gold range. Both resist the spread of flame.
- Which MCB goes with each wire size?
- Typically a 6A MCB on 1.0 sq mm, 6A to 10A on 1.5 sq mm, 16A on 2.5 sq mm, 20A to 25A on 4.0 sq mm and 32A on 6.0 sq mm. The MCB must never be rated above what the wire can carry.
- Is it ISI marked?
- Yes. The pack carries the ISI mark with IS 694, the Indian standard for PVC-insulated wires and cables, and is marked 1100 V grade.
- Is FR the same as FRLS?
- No. FRLS (flame retardant, low smoke) insulation also limits smoke and fumes in a fire. This wire is sold as FR, not FRLS.
- Which colours are used for phase, neutral and earth?
- Commonly red (or red, yellow and blue for three phases) for phase, black for neutral and green or green-yellow for earth. Tell us the colours you need when ordering.
Buy copper FR wire in 90 m coils online from Electric Market, Chennai. For site, contractor or bulk quantities, contact us for a quote.