Have you ever struggled with choosing between H05Z-K and H07Z-K cables for your industrial or building projects? These two types of cables are widely used in the market, but subtle differences in performance can directly affect safety and efficiency. In this article, we will comprehensively compare H05Z-K and H07Z-K cables-from technical specifications and application scenarios to selection advice-helping you make the smartest decision.
Overview of H05Z-K Cable
H05Z-K is a high-performance, low-smoke, halogen-free (LSZH) single-core flexible cable, designed for light-duty equipment and fixed installations. Its key features include:
- Conductor type: Fine-stranded copper wire (flexible, easy to bend)
- Rated voltage: 300/500V
- Operating temperature: -5℃ to +70℃
- Insulation material: Low-smoke, halogen-free (LSZH) thermoplastic, reducing smoke and toxic gases in case of fire
- Certifications: Compliant with VDE, CE, CB international standards
- Characteristics: Oil-resistant, acid/alkali-resistant, mechanically robust; suitable for light machinery and instrumentation wiring
H05Z-K cables are widely used in household appliances, control panels, and light equipment wiring due to their flexibility, safety, and environmentally friendly properties.
Overview of H07Z-K Cable
H07Z-K is a highly flexible, low-smoke, halogen-free cable designed for medium to heavy-duty industrial environments, especially where mechanical stress is significant. Main specifications include:
- Conductor type: Fine-stranded copper wire (highly flexible, ideal for frequent bending or movement)
- Rated voltage: 450/750V
- Operating temperature: -5℃ to +90℃
- Insulation material: Low-smoke, halogen-free (LSZH), meeting international safety and environmental standards
- Certifications: VDE, CE, CB
- Characteristics: High tensile strength, wear-resistant; ideal for industrial machinery and complex wiring systems
H07Z-K cables are particularly suitable for automation equipment, robotics, conveyor systems, and other applications with frequent bending.
H05Z-K vs H07Z-K: Key Differences
| Parameter | H05Z-K | H07Z-K | Difference |
|---|---|---|---|
| Rated voltage | 300/500V | 450/750V | H07Z-K can handle higher voltage |
| Operating temperature | -5℃~+70℃ | -5℃~+90℃ | H07Z-K has better heat resistance |
| Conductor flexibility | Medium | High | H07Z-K is better for frequent movement or bending |
| Application environment | Light equipment, fixed wiring | Medium/heavy industrial equipment, robotics | H07Z-K suits more demanding industrial environments |
| Mechanical strength | Standard | High | H07Z-K is more wear-resistant and durable |
From this comparison, it's clear that H07Z-K outperforms H05Z-K in voltage rating, temperature tolerance, and flexibility. However, it comes at a slightly higher cost, making it ideal for high-performance applications.

H05Z-K vs H07Z-K: Application Scenarios
H05Z-K Suitable Applications:
- Household appliance wiring
- Control panel wiring
- Instrumentation and light-duty connections
- Light industrial equipment
H07Z-K Suitable Applications:
- Automated production lines
- Robotics and robotic arms
- Conveyor systems and machinery
- High-flexibility or medium industrial wiring
If your project involves lightweight equipment and low load, H05Z-K is sufficient. For industrial automation or environments requiring frequent bending, H07Z-K is the more reliable choice.
Selection Recommendations
- Voltage requirement: Use H07Z-K for applications over 500V
- Temperature environment: H07Z-K is recommended for high-temperature conditions
- Flexibility requirement: For frequent bending or moving cables, H07Z-K is preferred
- Cost vs. application: H05Z-K is suitable for lightweight, low-load applications
Pro Tip: Always consider current rating, environmental temperature, and mechanical stress together when selecting a cable. Improper selection can lead to safety risks or higher maintenance costs.
Brand & Supply Advantages
Choosing Dongguan Greater Wire & Cable Co., Ltd. gives you comprehensive support:
- Full range of products with VDE, CE, CB, and other international certifications
- Professional technical support for projects of any size
- Experienced pre-sales and after-sales team to solve all your technical issues
Contact Information:
- Tel/WhatsApp/WeChat: +86 135 1078 4550 / +86 136 6257 9592
- Email: manager01@greaterwire.com
Contact us today to get the perfect H05Z-K or H07Z-K cable solution for your project, ensuring safer and more efficient operations!






















