Product Overview
The H07Z1-K 50 mm² 450/750V cable is engineered for high-demand electrical installations requiring strict fire safety and environmental compliance. Utilising a fine-stranded copper conductor paired with an advanced Halogen-Free Flame Retardant (HFFR) insulation, this single-core cable prevents the emission of toxic gases and dense smoke in the event of a fire. It is ideally suited for internal wiring in conduit, surface-mounted or embedded installation of conduits, and within switchgear and control gear cabinets.
Key Technical Specifications
- Product Code / Standard: H07Z1-K / TS EN 50525-3-31
- Conductor Type: Fine-stranded bare copper (Class 5)
- Nominal Cross-Section: 50 mm²
- Rated Voltage (Uo/U): 450/750V
- Insulation Material: HFFR (Halogen-Free Flame Retardant)
- CPR Fire Performance Class: Cca-s1, d2, a1
| Parameter | Specification |
| Standard | TS EN 50525-3-31 |
| Cross-Section (mm²) | 50 mm² |
| Rated Voltage | 450/750V |
| Insulation | HFFR |
| Conductor Structure | Fine-stranded copper |
| CPR Rating | Cca-s1, d2, a1 |
Applications & Installation
This single-core HFFR cable is specified for professional electrical contracting in environments where human life, sensitive electronic equipment, and structural assets must be protected against fire hazards. Typical applications include:
- Internal wiring of electrical panels and switchboards
- Conduit wiring in commercial buildings, hospitals, and educational facilities
- Fixed installations in public gathering spaces requiring high CPR ratings
- Infrastructure projects demanding zero halogen emissions and low smoke opacity
Standards & Compliance
The H07Z1-K 50 mm² cable strictly adheres to international manufacturing and safety benchmarks. It complies with TS EN 50525-3-31 and meets stringent European Construction Products Regulation (CPR) criteria with a Cca-s1, d2, a1 classification, confirming minimal heat release, excellent smoke production limits, no flaming droplets, and very low acidity levels during combustion.
