Application:
H07Z-R (6491B) 450/750V single core cable are suitable for use in energy networks, data processing centres, tunnels and mining applications. The LSZH sheath makes the cable ideal for use in public buildings such as hospitals, schools, libraries, hotels and office blocks where there could be a risk of fire.
For installations that do not require Low Smoke Halogen Free cable 6491X Cable maybe a preferred option.
Special Characteristics:
- Largely resistant to acids, bases and usual oils.
- Free from lacquer damaging substances and silicone during production.
Standards:
- H07Z-R / 6491B
- BS 7211
- Flame retardant to IEC 60332-1-2
- Smoke density to IEC 61304
- Gases toxicity to no toxicity IEC 60754-1
- Gases corrosively to low IEC 60754-2
- Certified by BASEC
Design:
- Conductor material: Stranded bare copper according to BS EN 60228 (previously BS 6360)
- Conductor class: Class 1 or 2
- Outer sheath material: LSZH (Low Smoke Zero Halogen)
- Sheath colour: See below
Core Identification:
- Cable sizes 1.5mm² and 2.5mm²: Brown, Black, Grey, Blue, Green/Yellow, Red, White, Orange and Violet.
- Cable sizes 4.0mm² to 630mm²: Brown, Black, Grey, Blue and Green/Yellow.
Cable specifications:
- Working voltage Uo/U (Um): 450/750 Volts
- Test voltage: 2500 Volts
- Bending radius for 1.5mm² to 25mm²: 3 x overall diameter (x Ø)
- Bending radius for 35mm² to 240mm²: 4 x overall diameter (x Ø)
- Bending radius for 240mm² to 630mm²: 6 x overall diameter (x Ø)
- Maximum operating temperature: +70 °C
- Installation temperature range: -20 to +60 °C
- Short-circuit maximum conductor temperature: 250 °C
- Lead free: Yes
Technical Characteristics:
| ORDER REFERENCE NUMBER |
NUMBER OF CORES |
SIZE OF CORES (mm²) |
STRANDING (Class 1 & 2) |
CURRENT RATING | APPROX. OVERALL DIAMETER (mm) |
APPROX. CABLE WEIGHT KG/KM |
|
| SINGLE PHASE a.c. or d.c. (AMP) |
THREE PHASE a.c. (AMP) |
||||||
| 6491B1.5+ | 1 | 1.5 | 7 x 0.53 | 17.5 | 15.5 | 3.0 | 20 |
| 6491B1.5●+ | 1 | 1.5 | 1 x 1.38 | 17.5 | 15.5 | 3.0 | 20 |
| 6491B2.5+ | 1 | 2.5 | 7 x 0.67 | 24 | 21 | 3.7 | 35 |
| 6491B2.5●+ | 1 | 2.5 | 1 x 1.78 | 24 | 21 | 3.7 | 35 |
| 6491B4+ | 1 | 4.0 | 7 x 0.85 | 32 | 28 | 4.2 | 50 |
| 6491B6+ | 1 | 6.0 | 7 x 1.04 | 41 | 36 | 4.8 | 70 |
| 6491B10+ | 1 | 10 | 7 x 1.35 | 57 | 50 | 6.0 | 110 |
| 6491B16+ | 1 | 16 | 7 x 1.70 | 76 | 68 | 6.5 | 170 |
| 6491B25+ | 1 | 25 | 7 x 2.14 | 101 | 89 | 8.5 | 280 |
| 6491B35+ | 1 | 35 | 7 x 2.52 | 125 | 110 | 9.5 | 360 |
| 6491B50+ | 1 | 50 | 19 x 1.78 | 151 | 134 | 11.0 | 480 |
| 6491B70+ | 1 | 70 | 19 x 2.14 | 192 | 171 | 13.0 | 670 |
| 6491B95+ | 1 | 95 | 19 x 2.52 | 232 | 207 | 15.0 | 950 |
| 6491B120+ | 1 | 120 | 37 x 2.03 | 296 | 239 | 16.0 | 1200 |
| 6491B150+ | 1 | 150 | 37 x 2.25 | 300 | 262 | 18.0 | 1500 |
| 6491B185+ | 1 | 185 | 37 x 2.52 | 341 | 296 | 20.0 | 1800 |
| 6491B240+ | 1 | 240 | 61 x 2.25 | 400 | 346 | 23.0 | 2500 |
| 6491B300+ | 1 | 300 | 61 x 2.52 | 458 | 394 | 26.0 | 3000 |
| 6491B400+ | 1 | 400 | 61 x 3.20 | 546 | 467 | 29.0 | 3750 |
| 6491B500+ | 1 | 500 | 61 x 3.85 | 626 | 533 | 24.1 | 4950 |
| 6491B630+ | 1 | 630 | 127 x 2.50 | 720 | 611 | 27.9 | 6300 |
Click to download PDF datasheet 6491B Cable