H07ZZ-F Rubber cable

H07ZZ-F Halogen-Free Rubber Cable — 450/750V, LSOH Flexible Cable

H07ZZ-F is a heavy-duty halogen-free, low-smoke, zero-halogen (LSOH) flexible rubber cable rated at 450/750V. Cross-linked polyolefin insulation and an LSOH thermosetting outer sheath deliver exceptional fire performance — minimal smoke emission and no toxic halogen gases — while retaining the flexibility and mechanical toughness of a traditional rubber cable.

Designated under IEC 60245 and EN 50525-2-21, H07ZZ-F is specified wherever enhanced fire safety is required alongside robust flexible performance: underground stations, tunnels, ships, hospitals, offshore platforms, and public buildings. 1 to 5 cores; 1.5 mm² to 150 mm².

Key Design Features

• Cross-linked polyolefin (Z) insulation — excellent thermal and electrical stability
• LSOH thermosetting (Z) outer sheath — no halogens, minimal smoke
• Class 5 fine-wire annealed copper conductors for excellent flexibility
• Rated voltage 450/750V; operating temperature ‑40°C to +90°C
• 1 to 5 cores; 1.5 mm² to 150 mm²
• Passes IEC 60332-1 flame retardancy and IEC 61034 smoke density tests
• No halogen content — no HCl or corrosive gases on burning

Electrical & Mechanical Specifications

Typical Applications

• Underground railway stations and metro tunnels
• Offshore platforms and FPSO vessel portable tools
• Hospitals and public buildings with fire safety requirements
• Ships and marine vessels with SOLAS fire safety obligations
• Chemical plant temporary power and portable tools
• Data centres and critical infrastructure maintenance

Selection Guide

H07ZZ-F vs H07RN-F

H07RN-F neoprene sheath, while mechanically excellent, produces toxic smoke and HCl gas when burned. H07ZZ-F eliminates this risk — mandatory in many confined-space and public-safety applications requiring LSOH / LS0H / OHLS cables.