H07ZZ-F EN 50525-3-21 LSZH Rubber Flexible Cable
The H07ZZ-F Rubber Flexible Cable is a high-performance low-smoke, halogen-free (LSZH) flexible cable designed in compliance with EN 50525-3-21 and IEC 60502-1 standards. It offers outstanding flexibility, flame retardancy, and resistance to smoke and toxic gas emission, ensuring enhanced safety in public and industrial environments. With its cross-linked LSZH insulation and sheath, the H07ZZ-F cable is ideal for fixed and mobile electrical installations in airports, subways, public buildings, power distribution systems, UPS equipment, and stage lighting setups. Engineered to perform under moderate mechanical stress, it maintains excellent reliability both indoors and outdoors. The H07ZZ-F LSZH is ideal for mobile equipment, construction sites, mining, public buildings, and industrial power supply where low smoke, halogen-free safety, and flexibility are critical for fire-sensitive or confined spaces.
- 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 EN 50525-3-21 LSZH Rubber Flexible Cable Constrution
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
Manufacturer Standard
EN 50525-3-21, HD 22-13, CEI 20-19 Part 13, EN 60228
Flame retardant
IEC/EN 60332-3-10
Note
Sizes from 5x35mm2 are not harmonised (07ZZ-F)
Core Identification
1 core: Black
2 core: Blue、Brown
3 core: Green/Yellow、Blue、Brown
4 core: Green/Yellow、Brown、Black、Grey
5 core: Green/Yellow、Blue、Brown、Black、Grey
6 core and above: Green/Yellow、Black 、White
2 core: Blue、Brown
3 core: Green/Yellow、Blue、Brown
4 core: Green/Yellow、Brown、Black、Grey
5 core: Green/Yellow、Blue、Brown、Black、Grey
6 core and above: Green/Yellow、Black 、White
Application
The H07ZZ-F Rubber Flexible Cable is suitable for installations in environments where fire, smoke, and toxic gases could endanger life and equipment, such as mobile power supplies, UPS systems, and power supplies for stage lighting and audio/video equipment. Designed to withstand moderate mechanical stress, it is suitable for use in various fixed or mobile electrical installations, both indoors and outdoors.
Technical Specifications
H07ZZ-F EN 50525-3-21 LSZH Rubber Flexible Cable
H07ZZ-F EN 50525-3-21 LSZH Rubber Flexible Cable Data Sheet
| No of Cores | Nominal Cross Section Area mm² |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
A2 Glands Brass | A2PL Gland Plastic |
| 1 | 1.5 | 6.4 | 63 | - | - |
| 1 | 2.5 | 7.1 | 76 | - | - |
| 1 | 4 | 8.1 | 107 | 20S | 20 |
| 1 | 6 | 8.85 | 140 | 20S | 20 |
| 1 | 10 | 10.7 | 213 | 20S | 20 |
| 1 | 16 | 12.1 | 291 | 20 | 25 |
| 1 | 25 | 14.25 | 415 | 25 | 25 |
| 1 | 35 | 16.1 | 539 | 25 | 25 |
| 1 | 50 | 18.55 | 740 | 25 | 32 |
| 1 | 70 | 20.95 | 899 | 32 | 32 |
| 1 | 95 | 23.4 | 1290 | 32 | 40 |
| 1 | 120 | 25.7 | 1592 | 40 | 40 |
| 1 | 150 | 28.3 | 1957 | 40 | 40 |
| 1 | 185 | 31 | 2350 | 50S | 50 |
| 1 | 240 | 34.45 | 3099 | 50 | 63 |
| 1 | 300 | 37.7 | 3687 | 50 | - |
| 1 | 400 | 42.1 | 4850 | 63S | - |
| 1 | 500 | 46.65 | 5998 | 63 | - |
| 2 | 1 | 8.85 | 112 | 20S | - |
| 2 | 1.5 | 9.75 | 135 | - | 20 |
| 2 | 2.5 | 11.65 | 190 | 20 | 25 |
| 2 | 4 | 13.45 | 255 | 25 | - |
| 2 | 6 | 14.95 | 335 | 25 | - |
| 2 | 10 | 20.15 | 590 | 32 | - |
| 2 | 16 | 22.95 | 821 | 32 | - |
| 2 | 25 | 27.5 | 1172 | 40 | - |
| 3 | 1 | 9.5 | 125 | - | - |
| 3 | 1.5 | 10.55 | 129 | 20 | 20 |
| 3 | 2.5 | 12.45 | 250 | 25 | 25 |
| 3 | 4 | 14.45 | 330 | 25 | - |
| 3 | 6 | 16.05 | 440 | 25 | - |
| 3 | 10 | 21.65 | 800 | 32 | - |
| 3 | 16 | 24.7 | 1150 | 40 | - |
| 3 | 25 | 29.55 | 1680 | 50S | - |
| 3 | 35 | 33.2 | 2170 | 50S | - |
| 4 | 1 | 10.55 | 170 | 20S | - |
| 4 | 1.5 | 11.65 | 196 | 20 | 25 |
| 4 | 2.5 | 13.8 | 275 | 25 | 25 |
| 4 | 4 | 15.95 | 388 | 25 | 25 |
| 4 | 6 | 17.85 | 515 | 32 | 32 |
Quality Control
H07ZZ-F EN 50525-3-21 LSZH Rubber Flexible Cable
Raw Material Test
Raw Material Test for H07ZZ-F EN 50525-3-21 LSZH Rubber Flexible Cable ensures LSZH compliance and heavy-duty performance. The structured process includes: Conductor Analysis: Test copper for tensile strength (>200 MPa), elongation (>20%), conductivity (≥97% IACS), and surface quality to ensure flexibility and corrosion resistance. Insulation Testing: Halogen-free EPR insulation evaluated for tensile (>6.5 MPa), elongation (>300%), dielectric strength (>20 kV/mm), thermal aging (90°C/168h), oil resistance (EN 60811), and halogen content (IEC 60754). Sheath Compound Evaluation: LSZH outer sheath tested for low halogen/acid gas (IEC 60754 ≤0.1% Cl/Br), low smoke density (IEC 61034), flame retardancy (IEC 60332-1), oil/abrasion resistance, UV/ozone stability (EN 50396), and mechanical properties (tensile/elongation).
Process inspection
Process Inspection during manufacturing of H07ZZ-F EN 50525-3-21 LSZH Rubber Flexible Cable maintains precision and LSZH integrity. Steps include: Conductor Stranding: Monitor fine class 5 stranding for uniform lay length, compactness, and flexibility. Insulation Extrusion: Apply halogen-free EPR insulation at controlled thicknesses; inline scanners, spark testers, and eccentricity monitors detect defects. Outer Sheath Extrusion: Apply LSZH sheath; real-time checks on thickness, surface finish, adhesion, and contamination-free process (no halogen traces). Continuous Monitoring: Track conductor resistance, insulation integrity, diameter, and preliminary LSZH compliance (halogen/smoke sample tests). Parameter Adjustment & Sampling: Extrusion optimized; frequent samples tested for halogen content, smoke density, and mechanical properties, deviations corrected immediately.
Finished Product
Finished Product Test confirms the H07ZZ-F EN 50525-3-21 LSZH Rubber Flexible Cable meets LSZH and heavy-duty standards before shipment. The procedure includes: LSZH & Fire Safety Testing: Halogen content (IEC 60754 ≤0.1% Cl/Br), low smoke density (IEC 61034), flame retardancy (IEC 60332-1), and toxicity/acid gas emission verified. Mechanical Evaluation: Bending radius (4–6× OD), tensile strength, abrasion, tear, and crush resistance tested. Environmental & Chemical Validation: Oil immersion, thermal aging, ozone resistance, and UV stability confirmed. Final Approval & Documentation: Generate traceable reports; only 100% compliant H07ZZ-F EN 50525-3-21 LSZH Rubber Flexible Cable labeled and coiled, ensuring low-toxicity fire safety, durability, and reliable performance in heavy-duty LSZH applications.
Application
The H07ZZ-F EN 50525-3-21 LSZH Rubber Flexible Cable is suited for heavy-duty mobile equipment in construction, mining, public events, hospitals, tunnels, and industrial workshops requiring LSZH low smoke, halogen-free, flame-retardant flexible cable for power supply in dry, damp, or wet areas with enhanced fire safety.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
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