

6491B / H07Z-R Cable
- According to IEC,EN Standard
- Place of Origin: Henan, China
- Number of Cores: 1
- HS Code: 8544492100
- MOQ: 300 Meters
5
- Product Details
The 6491B cable (harmonized code H07Z-R) is engineered for fixed wiring in domestic and industrial power/lighting systems. Featuring Class 2 stranded copper conductors and LSZH (Low Smoke Zero Halogen) insulation, it supports installation in conduit, trunking, or surface mounting for earthing applications. The low voltage cable is critical for public/government buildings where smoke and toxic fumes pose life-safety hazards to occupants and equipment.
Key Features:
- Enhanced Fire Safety
Low-smoke zero-halogen (LSZH) construction minimizes smoke obscuration during fires (BS EN 61034-2) and eliminates toxic gas emissions (BS EN 60754-1/2). Self-extinguishing flame retardancy complies with BS EN 60332-1-2.
- Rigorous Certification
Fully compliant with BS EN 50525-3-41. Features annealed copper conductors (BS EN 60228 Class 2) and LSZH thermosetting insulation (Type EI5 per BS EN 50363-5) for guaranteed electrical/mechanical performance.
- Optimized Installation
Lightweight, flexible design simplifies conduit/trunking pulls in fixed wiring installations. Engineered for efficient handling in protected environments.
Cable Construction:
- Conductor Material: Class 2 Stranded Copper
- Insulation Material: LSZH (Low Smoke Zero Halogen)
- The cable is available in brown, black, grey, blue, green/yellow, white, orange.
- Specification
6491B Cable Specification:
- Voltage rating (Uo/U): 450/750V
- Test Voltage: 2,500 V
- Temperature Range: -15°C to 90°C (operation)
- Max. temperature during short circuit (≤5S): 250°C
- Cable laying temperature (not less than): 0℃
- Min. Bending radius: Up to 10mm2 – 3 x overall diameter; 10mm2 – 25mm2 – 4 x overall diameter; Above 25mm2 – 6 x overall diameter
6491B Cable Datasheet:
| Cross section (mm2) | Conductor construction (No/mm) | Insulation thickness (mm) |
Overall diameter max (mm) | Conductor resistance at 20° C (Ohm/km) | Weight approx (Kg/Km) |
| 1×1.5 | 7/0.52 | 0.7 | 3.4 |
12.1
|
21 |
| 1×2.5 | 7/0.67 | 0.8 | 4.2 |
7.41
|
32 |
| 1×4 | 7/0.85 | 0.8 | 4.8 |
4.61
|
45 |
| 1×6 | 7/1.04 | 0.8 | 5.4 |
3.08
|
65 |
| 1×10 | 7/1.35 | 1 | 6.8 |
1.83
|
110 |
| 1×16 | 7/1.70 | 1 | 8 |
1.15
|
165 |
| 1×25 | 7/2.14 | 1.2 | 9.8 |
0.727
|
264 |
| 1×35 | 7/2.52 | 1.2 | 11 |
0.524
|
360 |
| 1×50 | 19/1.78 | 1.4 | 13 |
0.387
|
490 |
| 1×70 | 19/2.14 | 1.4 | 15 |
0.268
|
685 |
| 1×95 | 19/2.52 | 1.6 | 17.5 |
0.193
|
946 |
| 1×120 | 37/2.03 | 1.6 | 19 |
0.153
|
1181 |
| 1×150 | 37/2.25 | 1.8 | 21 |
0.124
|
1453 |
| 1×185 | 37/2.52 | 2 | 23.5 |
0.0991
|
1821 |
| 1×240 | 61/2.24 | 2.2 | 26.5 |
0.0754
|
2383 |
| 1×300 | 61/2.50 | 2.4 | 29.5 |
0.0601
|
2983 |
| 1×400 | 61/2.85 | 2.6 | 33.5 |
0.047
|
3800 |
- Construction
- Parameter




