6491B Cables 4sqmm Low Smoke & Zero Halogen (LSZH) Single Core Cable
6491B Cables
4sqmm
Prysmian Afumex have a range of Low Smoke Zero Halogen Cables – 6491B Cables are available in cross sectional area 4sqmm with a stranded circular copper conductor.
6491B manufactured with Low Smoke and Zero Halogen (LSZH) cable sheath is specified for public buildings applications where fire, smoke, emissions and toxic fumes could pose a serious risk to life and equipment.
Conductor Specification: Stranded Plain Annealed Compacted Circular Copper Conductor – Cross Section Area 4sqmm
6491B Cables 4sqmm
- Nominal cross sectional area: 4sqmm
- Cable type: 6491B
- Cable Voltage: 450/750 Volts
- Sheath: Low Smoke & Zero Halogen (LSZH)
- Approx. overall diameter: 4.2mm
- Approx. cable weight: 47kg
- Maximum conductor resistance at 20°C: 4.61ohms/km
- Short circuit rating 90- 160°C (1 sec) kA: 0.4
- Short circuit rating 90- 250°C (1 sec) kA: 0.6
- Current rating DC or single phase AC enclosed in conduit or trunking Amps: 42
- Current rating Three phase AC enclosed in conduit or trunking Amps: 37
- Voltage drop DC mV/A/ m: 12
- Voltage drop DC or single phase AC mV/A/ m: 712
- Voltage drop three phase AC mV/ A/m: 10
- Low Smoke Zero Halogen Cables
Cable Termination | Cable Lugs | Cable Joint |
A2 20/16 Brass Gland – Prysmian KM409-51 | 4sqmm Copper Lug – Cembre A1 | Resin Cable Joint – 3M LVI-1/2-C |

Cable Cleats | Cable Lugs | Cable Joints | Cable Glands | LV MV HV Cables
➡ See Prysmian for a complete range of LSZH Low Smoke Zero Halogen cable accessories including joints, glands, cleats and cable terminations for use with Afumex cables.