H07Z-R Halogen Free Flame Retardant Building Wire

Product Overview

H07Z-R Halogen Free Flame Retardant Building Wire is a single-core Class 2 stranded copper conductor LSOH building wire manufactured to HD 22.9 S2, VDE-0282 Part-9, and BS 7211. The -R suffix designates rigid stranded construction (7-strand concentric lay, Class 2 per VDE-0295 / IEC 60228) as opposed to the -K flexible Class 5 variant. LSOH cross-link polyolefin EI5 thermosetting insulation delivers zero halogen acid gas emission, low smoke density, and self-extinguishing combustion properties — the standard safety wire for all European public buildings, hospitals, and enclosed spaces where toxic PVC smoke would threaten life and electronic equipment. Rated 450/750V with 90°C continuous temperature, -40°C static rating, and 10 MΩ·km insulation resistance — the same fire-safety and electrical performance as H07Z-K, but with the cost and installation advantages of Class 2 stranding for straight conduit and trunking runs.

The -R variant occupies an important niche in LSOH building wiring: where H07Z-K (Class 5 flexible) is specified for panel interiors and appliance wiring that requires extreme flexibility through tight routing paths, H07Z-R (Class 2 stranded) is the general-purpose LSOH wire for conduit pulls, trunking, and straight equipment connections — the LSOH equivalent of the workhorse H07V-R PVC wire. The 7-strand concentric lay is less expensive to manufacture than Class 5's fine multi-strand construction (fewer wire-drawing operations, simpler stranding), and the more rigid cable holds its shape better in vertical risers and long cable tray spans — an installation advantage in commercial and industrial LSOH projects where the wire is pulled once and remains stationary for decades. The bending radius (8×D) is the same as H07Z-K — determined by the polyolefin insulation, not the conductor stranding class. The insulation wall thickness and overall diameter are also identical between -R and -K for the same cross-section, making the two variants dimensionally interchangeable in the same conduit.

Fifteen sizes from 1.5mm² to 240mm² cover the full European building wiring range, all at 100m per roll in export wooden case packaging. The CE marking under the Low Voltage Directives and ROHS compliance ensure barrier-free market access across all CENELEC member states and the United Kingdom. H07Z-R completes the LSOH building wire trilogy alongside H07Z-K (flexible) and HFIX (Korean standard) — a family of halogen-free single-core wires covering every stranding class, voltage class, and regulatory framework in the global LSOH market.

Bare copper conductor — 7-strand orange copper, Class 2 concentric lay per VDE-0295 / IEC 60228
LSOH cross-link polyolefin insulation — Dark blue thermosetting ring, zero halogen, EI5 type per BS EN 50363-5

Technical Characteristics

Applicable Standards

LSOH Wire Trilogy — Complete Strangding Spectrum

Technical Specifications

Class 2 stranded bare copper per VDE-0295 / IEC 60228. LSOH cross-link polyolefin EI5 thermosetting insulation per BS EN 50363-5. Nominal copper weight = conductor only. Nominal weight = conductor + insulation. All sizes single core, 100m/roll.

Packaging & Delivery

Typical Applications

H07Z-R is the Class 2 stranded workhorse of the LSOH building wire family — specified for conduit and trunking runs in European public buildings where H07Z-K's extreme flexibility is unnecessary and H07Z-R's cost advantage is welcomed:

Related Products

Complete your LSOH and building wire range — European, Korean, and international standards: