H07ZZ-F LSZH Flexible Rubber Cable: 450/750V Halogen-Free Power Cord Specifications & Guide
2026-04-15
In today's increasingly safety-conscious industrial and commercial environments, the H07ZZ-F LSZH Flexible Rubber Cable has emerged as a preferred choice for power and control applications worldwide. Rated at 450/750V, this halogen-free, low smoke zero halogen (LSZH) cable delivers exceptional flexibility, durability, and fire safety performance — making it the ideal upgrade or replacement for traditional H07RN-F rubber cables in projects where toxic smoke emission and corrosive gases pose serious risks.
Manufactured to EN 50525-3-21 (formerly HD 22.13) standards, the H07ZZ-F features class 5 stranded flexible copper conductors, LSZH cross-linked rubber insulation (EI8 type), and a robust halogen-free LSZH outer sheath. This construction ensures outstanding resistance to abrasion, impact, oils, ozone, and extreme temperatures — fixed installations from -20°C to +90°C, and flexed use from -5°C to +50°C or better in many variants.
Whether for stage lighting, mobile machinery, industrial tools, renewable energy setups, public buildings, or harsh outdoor environments, the H07ZZ-F combines mechanical toughness with critical LSZH properties to protect lives, equipment, and infrastructure during fire incidents.
1. What Is H07ZZ-F Cable?
H07ZZ-F is a harmonized European flexible rubber power cable rated at 450/750V Cable, designed for applications requiring:
- High flexibility
- Halogen-free, low smoke emission
- Enhanced mechanical durability
- Safe use indoors and outdoors
Unlike traditional rubber cables such as H07RN-F, H07ZZ-F uses LSZH (Low Smoke Zero Halogen) compounds instead of halogenated elastomers, making it suitable for modern safety-critical environments.
Key Identification Breakdown
|
Code |
Meaning |
|
H |
Harmonized (HAR standard) |
|
07 |
450/750V rated voltage |
|
Z Z |
LSZH insulation + LSZH sheath |
|
F |
Flexible stranded conductors |
2. Why LSZH Matters in Modern Electrical Systems
Halogen-Free vs Traditional Rubber Cable
LSZH cables are engineered to reduce toxic gas emission, smoke density, and corrosive byproducts during combustion—critical for modern buildings and infrastructure.
|
Property |
LSZH Cable |
Traditional Rubber Cable |
|
Halogen content |
Zero |
Contains chlorine/bromine |
|
Smoke density |
Very low |
High |
|
Toxic gas emission |
Minimal |
High |
|
Fire evacuation safety |
Excellent |
Limited |
|
Compliance with green building codes |
Yes |
Often no |
This makes H07ZZ-F LSZH flexible cable increasingly preferred in public buildings, transport hubs, renewable energy facilities, and smart factories.
3. H07ZZ-F Technical Specifications
Electrical & Mechanical Parameters
|
Parameter |
Value |
|
Rated Voltage |
450/750V |
|
Conductor Material |
Annealed copper (Class 5) |
|
Insulation |
LSZH elastomer |
|
Outer Sheath |
LSZH rubber compound |
|
Operating Temperature |
-25°C to +90°C |
|
Short-Circuit Temp |
Up to 250°C |
|
Flame Retardant |
IEC 60332-1 |
|
Smoke Density |
IEC 61034 |
|
Halogen Content |
IEC 60754 |
These specifications align with HAR / EN 50525 standards, ensuring wide acceptance across EU and international markets.
4. Conductor Construction & Flexibility
H07ZZ-F is built using fine stranded copper conductors, enabling superior flex performance compared to solid or semi-rigid cables.
Flex Characteristics
|
Feature |
Performance |
|
Conductor class |
Class 5 (fine stranded) |
|
Minimum bending radius |
4–6 × overall diameter |
|
Suitable for continuous flexing |
Yes |
|
Resistance to vibration |
High |
This makes the cable ideal for portable equipment, moving machinery, and temporary power connections.
5. Typical Applications of H07ZZ-F Cable
Indoors and Outdoors Cable Use Cases
H07ZZ-F flexible rubber cable is suitable for both indoor and outdoor environments, provided it is not directly buried or submerged.
Common Applications
- Portable industrial equipment
- Construction site power supplies
- Temporary event installations
- Commercial and public buildings
- Renewable energy auxiliary systems
- Workshops and factory floors
|
Application Area |
Suitability |
|
Indoor fixed wiring |
✓ |
|
Indoor flexible connection |
✓✓✓ |
|
Outdoor temporary use |
✓✓ |
|
Oil & chemical exposure |
Moderate |
|
Submerged applications |
✗ |
6. H07ZZ-F vs Other Flexible Power Cables
Comparison with H05VV-F and H07RN-F
|
Feature |
H05VV-F |
H07RN-F |
H07ZZ-F |
|
Voltage rating |
300/500V |
450/750V |
450/750V |
|
Halogen-free |
No |
No |
Yes |
|
Smoke emission |
High |
Medium |
Very low |
|
Flexibility |
Medium |
High |
High |
|
Fire safety |
Basic |
Good |
Excellent |
|
Modern compliance |
Limited |
Partial |
Future-proof |
H07ZZ-F bridges the gap between industrial-grade durability and next-generation fire safety standards.
7. Installation & Handling Guidelines
Best Practices
- Avoid direct burial or permanent immersion in water
- Respect minimum bending radius during installation
- Use certified connectors rated for LSZH materials
- Ensure proper strain relief for mobile equipment
Cable Sizing Example
|
Conductor Size (mm²) |
Typical Current (A) |
Use Case |
|
1.5 |
16 |
Lighting & tools |
|
2.5 |
25 |
Portable machines |
|
4.0 |
32 |
Heavy equipment |
|
6.0 |
41 |
Temporary power feeds |
8. Compliance, Sustainability & Market Trends
With stricter fire safety regulations, green building certifications, and ESG requirements, halogen free cable adoption continues to grow.
Why H07ZZ-F Is Future-Ready
- Meets EU CPR fire safety direction
- Compatible with LEED / BREEAM projects
- Reduces lifecycle safety risk
- Supports sustainable infrastructure goals
Market demand for LSZH flexible cables is increasing across:
- Europe
- Middle East
- High-end Asian infrastructure projects
9. How to Choose the Right H07ZZ-F Cable
Selection Checklist
- ✔ Required voltage ≥ 450/750V
- ✔ Indoor/outdoor temporary installation
- ✔ High flexibility needed
- ✔ Halogen-free & low smoke required
- ✔ Compliance with HAR / EN standards
If all boxes are checked, H07ZZ-F is the optimal flexible power cord solution.
10.H07ZZ-F Product Model Table (Typical Sizes & Configurations)
The following table lists commonly manufactured H07ZZ-F LSZH flexible rubber cable models, covering the most frequently used conductor sizes for indoor and outdoor flexible power applications.
Standard H07ZZ-F Cable Models
|
Cable Model |
Conductors |
Nominal Cross-Section (mm²) |
Rated Voltage |
Approx. OD (mm) |
Current Capacity (A)* |
Typical Applications |
|
H07ZZ-F 2×1.0 |
2 cores |
1.0 |
450/750V |
6.5 |
11 |
Lighting, small tools |
|
H07ZZ-F 2×1.5 |
2 cores |
1.5 |
450/750V |
7.2 |
16 |
Portable appliances |
|
H07ZZ-F 3×1.5 |
3 cores |
1.5 |
450/750V |
8.0 |
16 |
Single-phase equipment |
|
H07ZZ-F 3×2.5 |
3 cores |
2.5 |
450/750V |
9.5 |
25 |
Construction power |
|
H07ZZ-F 4×2.5 |
4 cores |
2.5 |
450/750V |
10.2 |
25 |
Industrial machines |
|
H07ZZ-F 5×2.5 |
5 cores |
2.5 |
450/750V |
11.0 |
25 |
Three-phase equipment |
|
H07ZZ-F 4×4 |
4 cores |
4.0 |
450/750V |
12.5 |
32 |
Heavy-duty tools |
|
H07ZZ-F 5×4 |
5 cores |
4.0 |
450/750V |
13.5 |
32 |
Mobile power supply |
|
H07ZZ-F 4×6 |
4 cores |
6.0 |
450/750V |
15.0 |
41 |
Temporary distribution |
|
H07ZZ-F 5×6 |
5 cores |
6.0 |
450/750V |
16.0 |
41 |
Industrial power cords |
*Current ratings are indicative values based on standard installation conditions (IEC reference method). Actual ampacity may vary depending on ambient temperature, installation method, and duty cycle.
Customization Options
Manufacturers typically offer the following custom configurations for H07ZZ-F cables:
- Conductor colors according to HD 308 / IEC 60446
- Sequential or numbered cores
- Oil-resistant LSZH sheath variants
- UV-resistant outer sheath for outdoor use
- Custom cable lengths and drum packaging
Model Selection Tips
|
Requirement |
Recommended Model |
|
Portable household or commercial equipment |
3×1.5 / 3×2.5 |
|
Construction site tools |
3×2.5 / 4×2.5 |
|
Three-phase machinery |
5×2.5 / 5×4 |
|
Temporary power distribution |
4×6 / 5×6 |
|
High safety / public buildings |
Any LSZH H07ZZ-F |
H07ZZ-F LSZH Flexible Rubber Cable represents the evolution of flexible power cables—combining mechanical strength, high flexibility, fire safety, and environmental responsibility.
For engineers, contractors, and system integrators working in modern electrical systems, H07ZZ-F offers a safe, compliant, and future-proof alternative to traditional rubber and PVC flexible cables—especially for indoor and outdoor power connections where safety matters most.
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