Factory-Direct Supply of Certified Wires and Conductors for Diverse Industrial Applications
H05Z-U H07Z-U Wire
Voltage: H05Z-U 300/500V (0.5-1.0mm², test 2,000V), H07Z-U 450/750V (1.5-10mm², test 2,500V)
Conductor: Class 1 solid bare copper — no stranding, simplest LSOH termination
Insulation: LSOH thermosetting, 90°C continuous, 250°C short-circuit (+90°C vs PVC)
Bending: 15×Ø flexing / 10×Ø static — solid wire, bend once and hold shape
Range: 11 sizes 0.5-10mm², 8-105 kg/km, 100m/roll
Insulation Resistance (90°C): 0.015-0.007 MΩ·km — thermal-state leakage data
Standard: DIN VDE 0282-9, IEC 60754-2 / EN 50267, EN 50268 / IEC 61034
Product Overview
H05Z-U / H07Z-U Halogen-Free Single Core Wire Cable is a Class 1 solid bare copper conductor LSOH insulated building wire manufactured to DIN VDE 0282-9. The -U suffix designates a solid single-core copper conductor — no stranding — for fixed wiring inside switchboards, distribution boards, and appliances where the conductor, once terminated, never moves. The LSOH (Low Smoke Zero Halogen) thermosetting insulation provides the full safety profile: zero halogen acid gas emission when burning per IEC 60754-2 / EN 50267-2-2, low smoke density per EN 50268 / IEC 61034, flame retardancy per IEC 60332.1, and 250°C short-circuit temperature rating — 90°C above the PVC equivalent (160°C). H05Z-U covers the 300/500V signal and control range (0.5-1.0mm²), while H07Z-U extends to 450/750V for general building wiring (1.5-10mm²). All 11 sizes are 100m per roll in export wooden case packaging.
The solid copper conductor (-U) delivers the simplest, most cost-effective LSOH building wire construction, suited for protected fixed installations in pipes, ducts, and appliance interiors. While the bending radius (15×Ø flexing, 10×Ø static) is significantly wider than the stranded and flexible LSOH variants (8×D for H07Z-R and H07Z-K), solid wire's single rigid core requires no strand-handling during termination and eliminates strand separation risk at screw-down terminals — a genuine advantage in high-vibration environments like switchboard busbar connections and motor terminal boxes where loose strands can be a fire ignition source. The 90°C operating temperature with 250°C short-circuit rating makes H07Z-U suitable for equipment internal wiring where elevated ambient temperatures demand more than standard PVC's 70°C limit — and the LSOH chemistry ensures that if the equipment does catch fire, the wiring contributes no toxic or corrosive gases to the fire load.
Bare copper conductor — Solid single copper core, no stranding — the defining feature of the -U (solid) LSOH wire
LSOH thermosetting insulation — Black ring, zero halogen, 90°C, 250°C short-circuit, flame retardant per IEC 60332.1
Class 1 Solid Copper (-U)
Single solid bare copper core — no stranding. Zero strand separation risk at screw terminals. Simplest termination of all LSOH conductor classes.
LSOH Thermosetting Insulation
Zero halogen acid gas + low smoke per EN 50268/IEC 61034. 90°C continuous, 250°C short-circuit — 90°C above PVC (160°C). Self-extinguishing.
15×Ø / 10×Ø Bending
Wider bending radius than stranded/flexible LSOH (8×D) — solid conductor bends once and holds position. For fixed installations, not repeated flexing.
90°C Insulation Resistance
0.015-0.007 MΩ·km at maximum operating temperature — thermal-state leakage data per DIN VDE 0282-9 for hot-environment installations.
11 Sizes to 10mm²
H05Z-U (300/500V): 0.5-1.0mm², 3 sizes. H07Z-U (450/750V): 1.5-10mm², 8 sizes. 100m/roll. Export wooden case.
DIN VDE 0282-9
German national LSOH wire standard — the original European low smoke zero halogen specification for building wire, predating HD 22.9 S2.
Technical Characteristics
| Working Voltage (H05Z-U) | 300/500V |
| Working Voltage (H07Z-U) | 450/750V |
| Test Voltage | 2,000 / 2,500V |
| Flexing Bending Radius | 15 × Ø |
| Static Bending Radius | 10 × Ø |
| Flexing Temperature | +5°C to +90°C |
| Short Circuit Temperature | +250°C |
| Flame Retardant | IEC 60332.1 / EN 50265-2-1 |
Applicable Standards
| Standard | Scope |
|---|---|
| DIN VDE 0282-9 | German national standard for halogen-free cables with improved fire characteristics. The original European LSOH wire standard — predates the harmonised HD 22.9 family. |
| IEC 60754-2 / EN 50267-2-2 | Zero halogen acid gas emission — HCl/HF/HBr concentration below detection limit. LSOH mandatory test per both IEC and CENELEC methods. |
| EN 50268 / IEC 61034 | Smoke density test — minimum light transmittance during combustion. LSOH cables must maintain visibility for escape route navigation. |
| IEC 60332.1 / EN 50265-2-1 | Single cable vertical flame test — self-extinguishing within specified time after flame removal. |
LSOH Wire Quad — Complete Conductor Class Spectrum
| Type | Class | Bending | Range | Use Case |
|---|---|---|---|---|
| H05Z-U / H07Z-U | Class 1 (solid) | 15×Ø flex / 10×Ø static | 0.5-10mm² | Switchboard & appliance — fixed, never moves |
| H07Z-R | Class 2 (stranded) | 8×D | 1.5-240mm² | Conduit & trunking — general purpose LSOH |
| H05Z-K / H07Z-K | Class 5 (flexible) | 8×D | 0.5-240mm² | Panel interiors — complex routing paths |
| HFIX | Class 1 & 2 | 4×D | 1.5-300mm² | Korean LSOH — solid & stranded dual |
Technical Specifications
Class 1 solid bare copper per DIN VDE 0282-9. LSOH thermosetting insulation. Overall diameter given as lower-upper range. Minimum insulation resistance measured at 90°C conductor temperature. All sizes single core, 100m per roll.
| Cross Section (No. × mm²) | Insulation (mm) | OD Lower (mm) | OD Upper (mm) | Copper Weight (kg/km) | Total Weight (kg/km) | Insul. Res. 90°C (MΩ·km) |
|---|---|---|---|---|---|---|
| H05Z-U — 300/500V, Signal & Control Circuits | ||||||
| 1 × 0.5 | 0.6 | 1.9 | 2.4 | 4.8 | 8 | 0.015 |
| 1 × 0.75 | 0.6 | 2.1 | 2.6 | 7.2 | 12 | 0.012 |
| 1 × 1 | 0.6 | 2.2 | 2.8 | 9.6 | 14 | 0.011 |
| H07Z-U — 450/750V, Fixed Internal Wiring | ||||||
| 1 × 1.5 | 0.7 | 2.6 | 3.3 | 14.4 | 20 | 0.011 |
| 1 × 2.5 | 0.8 | 3.2 | 4.0 | 24 | 30 | 0.010 |
| 1 × 4 | 0.8 | 3.6 | 4.6 | 38 | 45 | 0.0085 |
| 1 × 6 | 0.8 | 4.1 | 5.2 | 58 | 65 | 0.007 |
| 1 × 10 | 1.0 | 5.3 | 6.6 | 96 | 105 | 0.007 |
Packaging & Delivery
| Parameter | Standard |
|---|---|
| Package | 100m per roll, export wooden case & pallet |
| Roll Marking | Manufacturer, H05Z-U/H07Z-U, 300/500V or 450/750V, LSOH, cross-section, length, weight, batch, VDE/CE marks |
| Colour Options | Standard LSOH colours (black standard; colour on request) |
| Outer Protection | Wooden case |
| Delivery Condition | Factory-new, tested per DIN VDE 0282-9, LSOH certified per IEC 60754-2 / EN 50267, CE marked, test certificate on request |
Typical Applications
H05Z-U/H07Z-U solid LSOH wire is the simplest, most cost-effective halogen-free building wire — specified for fixed installations in switchboards, distribution boards, and appliances:
Switchboard Internal Wiring
Solid LSOH wire for switchboard and distribution board internal bus-to-terminal connections — 250°C short-circuit rating handles busbar fault currents.
Appliance Internal Wiring
Internal wiring of appliances operating up to 90°C where LSOH chemistry eliminates toxic fume risk in the event of an appliance fire.
Public Building Equipment
Fixed wiring inside lighting fittings, control gear, and electrical equipment in public and government buildings where LSOH compliance is audited.
250°C Short-Circuit Survivability
LSOH thermosetting insulation withstands 250°C for 5s — PVC melts at 160°C. Critical for switchboard internal wiring where fault currents are highest.
VDE 0282-9 German Market
DIN VDE 0282-9 certified — mandatory for German industrial switchboard and equipment manufacturer LSOH compliance audits.
Solid Wire Economy
Simplest LSOH construction — lowest per-metre cost in the LSOH family. Ideal for fixed installations where flexibility is irrelevant.
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Frequently Asked Questions
As a factory, we offer flexible MOQ depending on the cable type. For standard stock items, MOQ is low; for customized specifications, please contact our sales team for a detailed quote.
Yes, Qiangli cables are manufactured in compliance with international standards such as UL, CE, TUV, and VDE. We provide full test reports and certificates upon request.
Absolutely. We have a dedicated R&D team that can customize cable structure, material, color, and printing to meet your specific project needs.
For standard products, lead time is usually 7-15 days. For large-scale project orders or customized products, it typically ranges from 20 to 30 days.
Yes, we provide free samples for most standard cables. You only need to cover the international courier costs. Contact us to arrange your sample shipment.