Factory-Direct Supply of Certified Wires and Conductors for Diverse Industrial Applications
H05Z-U H05Z1-U Wire
Voltage: 300/500V (H05 signal class), test 2,000V
Conductor: Class 1 solid bare copper — 0.5, 0.75, 1.0mm² micro-gauge
Insulation: LSOH thermoplastic polyolefin, 70°C continuous, 4×D bending
Range: 3 sizes, 8-14 kg/km, 2.1-2.8mm OD, 100m/roll
Resistance: 39.0 Ω/km (0.5mm²) → 19.5 Ω/km (1.0mm²) — signal level
Fire Safety: UNE-EN 60332 single cable + EN 50268 low smoke + EN 50267 zero halogen
Standard: BS EN 50525-3-31, CE + UNE marked, CPR compliant
Product Overview
H05Z-U / H05Z1-U Low Smoke Halogen Free Electric Wire 300/500V is the smallest-gauge solid LSOH building wire in the European harmonised range — three conductor sizes (0.5, 0.75, 1.0mm²) for signal, control, and panel wiring applications where low corrosive gas and fume emission is a mandatory requirement. The H05 voltage class (300/500V) distinguishes these micro-gauge wires from the H07 (450/750V) power wiring class — H05 is specifically designated for signal and control circuits inside equipment, panels, and appliances where the maximum system voltage does not exceed 300V to earth. The solid bare copper conductor (Class 1) provides the simplest termination possible — a single copper core that seats perfectly in screw-down and push-in terminals without strand separation or splaying. LSOH thermoplastic polyolefin insulation delivers the full zero-halogen, low-smoke safety profile with a compact 4×D bending radius — remarkably tight for a solid LSOH wire, achieved because the conductor cross-sections are so small (OD range 2.1-2.8mm) that even a solid copper core bends freely.
At 0.5mm², H05Z-U is the thinnest LSOH wire in our entire product range — an 8 kg/km weight and 2.1mm OD that disappears into the tightest panel trunking and cable management channels. The 39.0 Ω/km resistance at 0.5mm² is appropriate for signal-level circuits drawing milliamps to a few amps — relay coil wiring, indicator lamps, PLC I/O connections, and instrumentation loops. The 300/500V rating with a 2,000V test voltage provides ample dielectric margin for equipment operating at 230V mains, while the LSOH chemistry ensures that if the equipment does experience a fire, the wiring contributes zero corrosive gas that would destroy adjacent electronic components. CPR classification follows the same EN 50575 framework as the H07Z1 series. The 100m per roll standard length in export wooden case packaging completes the entry-level LSOH product offering.
Class 1 Solid Copper (Micro-Gauge)
0.5-1.0mm² solid bare copper — the smallest LSOH conductors available. 8-14 kg/km ultra-lightweight, 2.1-2.8mm OD — disappears into tight panel trunking.
LSOH Thermoplastic Polyolefin
Halogen-free thermoplastic polyolefin insulation — zero corrosive gas emission when burned. 70°C continuous, 4×D tight bending radius for micro-gauge solid wire.
300/500V Signal & Control Class
H05 = 300/500V (vs H07 = 450/750V). Designed for signal and control circuits inside equipment — not power distribution wiring.
4×D Bending (Micro Solid Wire)
Remarkably tight for solid LSOH — 8.4-11.2mm bend radius. Achievable because the conductor OD is so small that the solid copper core bends freely without kinking.
3 Sizes 0.5-1.0mm²
0.5mm² (8 kg/km), 0.75mm² (12 kg/km), 1.0mm² (14 kg/km). The entry-level LSOH wire — 100m/roll, export wooden case.
UNE-EN-IEC Triple Fire Standard
UNE-EN 60332 / EN 60332 / IEC 60332 single cable + EN 50268 smoke + EN 50267 zero halogen — full Spanish, European, and international fire certification.
Technical Characteristics
| Working Voltage | 300/500V |
| Test Voltage | 2,000V |
| Max. Conductor Temperature | +70°C (thermoplastic limitation) |
| Flexing Bending Radius | 4 × outer diameter |
| Static Bending Radius | 4 × outer diameter |
| Flexing Temperature | +5°C to +70°C |
| Flame Retardant | UNE-EN 60332 / EN 60332 / IEC 60332 |
| Fire Safety | EN 50268 (low smoke) + EN 50267 (zero halogen gas) |
Technical Specifications
Solid bare copper Class 1 per BS EN 60228. LSOH thermoplastic polyolefin insulation. Overall diameter given as nominal. Resistance at 20°C per IEC 60228 Class 1 copper maximums. All 3 sizes single core, 100m/roll.
| Cross Section (No. × mm²) | Insulation (mm) | Overall Dia. (mm) | Copper Weight (kg/km) | Total Weight (kg/km) | 20°C Res. (Ω/km) |
|---|---|---|---|---|---|
| 1 × 0.5 | 0.6 | 2.1 | 4.8 | 8 | 39.0 |
| 1 × 0.75 | 0.6 | 2.4 | 7.2 | 12 | 26.0 |
| 1 × 1 | 0.6 | 2.8 | 9.6 | 14 | 19.5 |
Packaging & Delivery
| Parameter | Standard |
|---|---|
| Package | 100m per roll, export wooden case & pallet |
| Roll Marking | Manufacturer, H05Z-U/H05Z1-U, 300/500V, LSOH, cross-section, length, weight, batch, CE/UNE/EN marks |
| Colour Options | Standard LSOH identification colours |
| Outer Protection | Wooden case |
| Delivery Condition | Factory-new, tested per EN 50525-3-31, LSOH certified per EN 50267 + EN 50268, CE + UNE marked |
Typical Applications
H05Z-U/H05Z1-U micro-gauge solid LSOH wire is the standard signal and control circuit wiring inside European industrial control equipment and panels:
PLC & Relay Control Panels
Standard 0.5-1.0mm² internal wiring for PLC I/O points, relay coils, contactor control circuits — the most common panel wire gauge by installed kilometres.
Instrumentation & Sensor Loops
4-20mA instrument loops, RTD/thermocouple connections, and transducer wiring — micro-gauge LSOH for signal integrity without corrosive gas risk.
Indicator & Signalling Circuits
LED indicators, panel lamps, audible alarms, and annunciator circuits — low-current applications where 0.5mm² is more than adequate.
LSOH-Required Panel Installations
Installations in panels requiring low corrosive gas and fume emission per European fire safety specifications — the entry-level LSOH compliance wire.
Industrial Equipment Export
CPR-compliant LSOH internal wiring for European-bound industrial control equipment — avoids the non-compliance rejection at EU customs clearance.
Lightest LSOH Wire
8 kg/km at 0.5mm² — the lightest wire in the entire LSOH family. Maximum container loading density for export wholesalers.
Request a Quote
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.