H07ZZ-F 450/750V Low Voltage Power Cable
H07ZZ-F 450/750V Low Voltage Power Cable is a halogen-free, low-smoke flexible power cable designed according to IEC and VDE standards, suitable for fixed installation in dry or damp indoor environments, especially in public buildings where high fire safety requirements apply. Featuring class 5 fine stranded plain copper conductors, cross-linked polyethylene (XLPE) insulation, and low smoke zero halogen (LSZH) elastomer outer sheath, it complies with EN 50525-3-21 and IEC 60332 standards. In fire conditions, it emits minimal smoke and no toxic halogen gases, ensuring safety in confined or public spaces. Excellent flexibility with tight bending radius simplifies installation in complex routing. Ideal for fixed and movable applications requiring enhanced fire safety and environmental compliance in industrial, commercial, and building services projects worldwide.
- Voltage Rating(Uo/U) 450/750V
-
Temperature Rating
Fixed: -20°C to +90°C
Flexed: -5°C to +50°C -
Minimum Bending Radius
Fixed: 4 x overall diameter
Flexed: 6 x overall diameter
Construction
Technical Specifications
Quality Control
Application
Construction
H07ZZ-F Low Voltage Power Cable Construction
Conductor
Class 5 flexible copper conductor
Insulation
LSZH (Low Smoke Zero Halogen) cross-linked compound
Sheath
LSZH (Low Smoke Zero Halogen) cross-linked compound
Sheath Colour
Black
*Note: Sizes from 5x35mm2 are not harmonised (07ZZ-F)
Note： NYY-O (without Green/Yellow earth conductor) is also available
*Note: Sizes from 5x35mm2 are not harmonised (07ZZ-F)
Note： NYY-O (without Green/Yellow earth conductor) is also available
Application
H07ZZ-F cables are widely used for fixed wiring in dry environments and are particularly suitable for industrial equipment and control system connections with low mechanical stress. The cables are suitable for internal wiring of household appliances and office automation equipment to ensure safe and reliable power transmission.
Core Identification
1 core: Black
2 core: Brown /Blue
3 core: Brown /Blue/Green/Yellow
4 core: Brown / Black/ Green/Yellow/ Grey
5 core: Green/Yellow /Brown /Blue/ Black/ Grey
6 core and above: Black with/White numbers
2 core: Brown /Blue
3 core: Brown /Blue/Green/Yellow
4 core: Brown / Black/ Green/Yellow/ Grey
5 core: Green/Yellow /Brown /Blue/ Black/ Grey
6 core and above: Black with/White numbers
Manufacturer Standard
EN 50525-3-21, HD 22-13, CEI 20-19 Part 13, EN 60228
Flame retardant
IEC/EN 60332-3-10
Technical Specifications
H07ZZ-F 450/750V Low Voltage Power Cable
H07ZZ-F Low Voltage Power Cable Technical Specifications
| No of Cores | Nominal Cross-Section Area | Nominal Overall Diameter | Approximate Weight |
| mm2 | mm | kg/km | |
| 1 | 1.5 | 6.4 | 63 |
| 1 | 2.5 | 7.1 | 76 |
| 1 | 4 | 8.1 | 107 |
| 1 | 6 | 8.85 | 140 |
| 1 | 10 | 10.7 | 213 |
| 1 | 16 | 12.1 | 291 |
| 1 | 25 | 14.25 | 415 |
| 1 | 35 | 16.1 | 539 |
| 1 | 50 | 18.55 | 740 |
| 1 | 70 | 20.95 | 989 |
| 1 | 95 | 23.4 | 1290 |
| 1 | 120 | 25.7 | 1592 |
| 1 | 150 | 28.3 | 1957 |
| 1 | 185 | 31 | 2350 |
| 1 | 240 | 34.45 | 3099 |
| 1 | 300 | 37.7 | 3687 |
| 1 | 400 | 42.1 | 4850 |
| 1 | 500 | 46.65 | 5998 |
| 1 | 1 | 8.85 | 112 |
| 2 | 1.5 | 9.75 | 135 |
| 2 | 2.5 | 11.65 | 190 |
| 2 | 4 | 13.45 | 255 |
| 2 | 6 | 14.95 | 335 |
| 2 | 10 | 20.15 | 590 |
| 2 | 16 | 22.95 | 821 |
| 2 | 25 | 27.5 | 1172 |
| 2 | 1 | 9.5 | 125 |
| 3 | 1.5 | 10.55 | 129 |
| 3 | 2.5 | 12.45 | 250 |
| 3 | 4 | 14.45 | 330 |
| 3 | 6 | 16.05 | 440 |
| 3 | 10 | 21.65 | 800 |
| 3 | 16 | 24.7 | 1150 |
| 3 | 25 | 29.55 | 1880 |
| 3 | 35 | 33.2 | 2170 |
| 3 | 1 | 10.55 | 170 |
| 4 | 1.5 | 11.65 | 196 |
| 4 | 2.5 | 13.8 | 275 |
| 4 | 4 | 15.95 | 388 |
| 4 | 6 | 17.85 | 515 |
| 4 | 10 | 23.7 | 882 |
| 4 | 16 | 26.95 | 1234 |
| 4 | 25 | 32.75 | 1811 |
| 4 | 35 | 36.8 | 2365 |
| 4 | 50 | 42.6 | 3212 |
| 4 | 70 | 48.35 | 4320 |
| 4 | 95 | 54.7 | 5572 |
| 4 | 120 | 59.5 | 6930 |
| 4 | 150 | 65.5 | 8419 |
| 4 | 185 | 72 | 10165 |
| 4 | 240 | 81.5 | 13420 |
| 5 | 1 | 11.65 | 205 |
| 5 | 1.5 | 12.8 | 242 |
| 5 | 2.5 | 15.15 | 341 |
| 5 | 4 | 17.75 | 495 |
| 5 | 6 | 19.85 | 642 |
| 5 | 10 | 26 | 1090 |
| 5 | 16 | 29.85 | 1534 |
| 5 | 25 | 36.2 | 2291 |
| 5 | 35 | 39.5 | 2700 |
| 5 | 50 | 44.2 | 3730 |
| 5 | 70 | 50.4 | 5022 |
| 5 | 95 | 56.2 | 6520 |
| 5 | 120 | 64.1 | 8080 |
| 5 | 150 | 70.1 | 8660 |
| 7 | 1.5 | 16.7 | 355 |
| 12 | 1.5 | 20 | 660 |
| 19 | 1.5 | 27.5 | 788 |
| 27 | 1.5 | 31.5 | 1077 |
| 37 | 1.5 | 36.5 | 1358 |
Quality Control
H07ZZ-F 450/750V Low Voltage Power Cable
Raw Material Test
For the H07ZZ-F 450/750V Low Voltage Power Cable, raw material testing starts with copper certification for ductility and conductivity. XLPE granules are evaluated for crosslinking potential, contamination, and thermal stability via TGA and microscopy. LSZH elastomer faces halogen-free verification, smoke opacity pre-tests, and corrosivity analysis per IEC standards. The structured process: receipt inspection, random sampling, physical/mechanical testing (tensile, elongation before/after aging), chemical analysis with ion chromatography, accelerated aging and oil immersion trials, and release decision. This ensures premium inputs, establishing the base for the H07ZZ-F 450/750V Low Voltage Power Cable's superior flexibility, dielectric strength, and low-smoke zero-halogen characteristics.
Process inspection
Process inspection in H07ZZ-F 450/750V Low Voltage Power Cable production involves continuous quality checks. Copper bunching monitors strand uniformity and flexibility parameters. XLPE insulation extrusion ensures even coverage with real-time thickness gauges. LSZH sheath application includes online spark testing and ovality control. Multi-core twisting verifies lay ratio and filler distribution. Printing durability is assessed. Critical steps: pre-extrusion compound dryness verification, parameter stabilization, capacitance monitoring for eccentricity, gel fraction sampling, bend radius checks on intermediates, and defect removal protocols. This multi-stage assurance maintains the H07ZZ-F 450/750V Low Voltage Power Cable's excellent flexibility, reliable insulation, and compliance with fire safety standards.
Finished Product
Completed H07ZZ-F 450/750V Low Voltage Power Cable reels face rigorous factory tests. Mandatory routines: DC resistance, high-potential AC test, insulation thickness, and sheath integrity. Fire tests include smoke production, acidity of gases, and bundled flame propagation. Flexibility and mechanical tests cover repeated bending, torsion, cold impact, and oil resistance. The sequential process: sample conditioning, parameter application (voltage/heat/oil), timed exposure monitoring, recovery inspection, property re-measurement, and documentation. Additional verifications ensure thermal endurance and marking permanence. Passing all confirms the H07ZZ-F 450/750V Low Voltage Power Cable's fire safety, flexibility, and efficiency for demanding low-voltage installations.
Application
Widely used in machine tools, conveyor systems, portable equipment, and building management requiring movable connections. Excellent for theaters, data centers, hotels, and industrial plants where low smoke zero halogen and high flexibility are essential for safety and performance.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
Wires and Cables packaging (1)
Wires and Cables packaging (2)
Wires and Cables packaging (3)
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What are the advantages of power cables and overhead lines?(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people; (2) The maintenance workload is small and frequent inspections are not required; (3) No need to erect towers; (4) Help improve power factor.
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Which aspects should be considered when choosing the cross section of a power cable?(1) The long-term allowable working current of the cable; (2) Thermal stability once short circuited; (3) The voltage drop on the line cannot exceed the allowable working range.
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What are the measures for cable fire prevention?(1) Use flame-retardant cables; (2) Use fireproof cable tray; (3) Use fireproof paint; (4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.; (5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.
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What should be paid attention to during the transportation and handling of cables?(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat. (2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.
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What inspections should be carried out for the acceptance of cable lines?(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear; (2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements; (3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements; (4) Good grounding; (5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted; (6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.
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