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

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.

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

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