Factory-Direct Supply of Certified Wires and Conductors for Diverse Industrial Applications
Cable H05V-K H07V-K PVC Insulated Flexible Electrical Building Wire
Conductor: Class 5 flexible stranded copper, plain or metal-coated per EN 60228
Insulation: PVC TI1 per BS EN 50363-3, 70°C, 2,500V test
Bending: 4×D (≤8mm) / 5×D (8-12mm) / 6×D (>12mm), -30°C to +70°C
Range: 19 sizes from 0.5mm² to 240mm², 100m/roll
Application: Switch control, relay & instrumentation panel internal wiring
Standard: DIN EN 50525-2-31, VDE 0285, BS EN 50525-2-31 (HAR marked)
Product Overview
Cable H05V-K / H07V-K PVC Insulated Flexible Electrical Building Wire is a single-core Class 5 flexible stranded copper conductor PVC insulated installation wire manufactured to DIN EN 50525-2-31, VDE 0285-525-2-31, and BS EN 50525-2-31. The harmonised designation encodes the full specification: H = CENELEC harmonised type, 05 = 300/500V or 07 = 450/750V, V = PVC insulation, -K = flexible stranded conductor for fixed wiring. The -K suffix is the critical differentiator from the solid -U series — this is the flexible version designed for panel wiring where the conductor must follow complex routing paths through switchgear, relay cabinets, and control enclosures. H05V-K covers the 0.5-1.0mm² range at 300/500V for signal and control circuits; H07V-K extends from 1.5-240mm² at 450/750V for general-purpose building wiring up to heavy panel bus connections. PVC insulation compound TI1 per BS EN 50363-3 provides 70°C continuous operation with a 2,500V test voltage and EN 60332-1-2 flame retardancy.
The Class 5 flexible stranding per EN 60228 distinguishes H05V-K/H07V-K from the solid H05V-U/H07V-U and the intermediate Class 2 H07V-R. Where solid wire must be bent once and left rigid, and Class 2 stranded tolerates gentle cable tray bends, Class 5 flexible wire handles the intricate point-to-point routing inside control panels — multiple 90-degree turns through tight trunking, around relays, and into terminal blocks — without kinking or spring-back. The bending radius follows the same three-tier graduated system seen across the harmonised flexible range: 4×D for cables ≤8mm OD, 5×D for 8-12mm, and 6×D for >12mm — enabling the smallest gauges (0.5mm² at 2.1mm OD) to bend to a radius of just 8.4mm. With a -30°C to +70°C operating range, H05V-K/H07V-K is suitable for panel installations in all climate zones.
H05V-K/H07V-K is the European harmonised counterpart to the NYAF designation used in ASEAN markets — both are Class 5 flexible single-core PVC wires rated 450/750V, manufactured to near-identical dimensional and electrical specifications. The difference is purely in the certifying standard: H05V-K/H07V-K carries the HAR (Harmonised) mark for CENELEC markets, while NYAF carries the IEC 60227 / SNI certification for Southeast Asia. For electrical panel builders exporting finished switchgear to European customers, specifying H05V-K/H07V-K internal wiring with HAR marking eliminates the compliance re-certification barrier.
Insulation — PVC (Polyvinyl chloride) TI1 per BS EN 50363-3, 0.6-2.2mm wall
Conductor — Stranded flexible copper, Class 5 per EN 60228, dense honeycomb packing of fine wires
Construction — Multiple fine copper strands bundled together, single PVC layer — simplified single-core design for maximum flexibility
Class 5 Flexible Copper
Stranded flexible plain or metal-coated copper per EN 60228 Class 5. Dense multi-wire packing — bends without kinking or spring-back for panel routing.
PVC TI1 Insulation
PVC compound TI1 to BS EN 50363-3. 70°C continuous. 0.6-2.2mm wall by size. Flame retardant per EN 60332-1-2. 2,500V test voltage.
HAR Harmonised Mark
DIN EN 50525-2-31 + VDE 0285 + BS EN 50525-2-31 triple certification. HAR mark enables barrier-free EU/UK market access for panel builders.
19 Sizes, 2 Voltage Tiers
H05V-K (300/500V): 0.5-1.0mm². H07V-K (450/750V): 1.5-240mm². Full range from micro-signal (0.5mm²) to heavy panel bus (240mm²).
-K vs -U: Flexible vs Solid
H05V-K/H07V-K (-K = flexible Class 5) vs H05V-U/H07V-U (-U = solid Class 1). Same voltage, same PVC — different stranding for different routing needs.
Panel Builder Export Ready
EU HAR mark means switchgear with H05V-K/H07V-K internal wiring passes EU compliance audit without wire re-certification — critical for export panel builders.
Technical Characteristics
| H05V-K Nominal Voltage | 300/500V (0.5-1.0mm²) |
| H07V-K Nominal Voltage | 450/750V (1.5-240mm²) |
| Test Voltage | 2,500V |
| Temperature Range | -30°C to +70°C |
| Min. Bend Radius — OD ≤ 8mm | 4 × outer diameter |
| Min. Bend Radius — OD 8-12mm | 5 × outer diameter |
| Min. Bend Radius — OD > 12mm | 6 × outer diameter |
| Conductor Class | Class 5 (flexible) per EN 60228 |
Applicable Standards
| Standard | Scope |
|---|---|
| DIN EN 50525-2-31 | Electric cables — Low voltage energy cables of rated voltages up to and including 450/750V. Part 2-31: Cables for general applications — single core non-sheathed PVC insulated flexible cables. Primary CENELEC standard. |
| VDE 0285-525-2-31 | German national adoption of EN 50525-2-31. VDE mark required for installations in Germany and Austria. |
| BS EN 50525-2-31 | British adoption — mandatory for UK market. BS mark enables use in UK wiring installations under BS 7671. |
| EN 60228 | Conductor standard. Class 5 flexible stranding — the fine multi-wire construction unique to the -K (flexible) designation. |
Technical Specifications
Class 5 flexible stranded copper per EN 60228. PVC TI1 insulation per BS EN 50363-3. Mean overall diameter given as lower-upper limit range per EN 50525-2-31. All weights approximate. 19 sizes (one 25mm² duplicate row preserved from source). 100m per roll, export wooden case.
| Type | Cross Section (mm²) | Insulation (mm) | OD Lower (mm) | OD Upper (mm) | Weight (kg/km) |
|---|---|---|---|---|---|
| H05V-K — 300/500V, Signal & Control Circuits | |||||
| H05V-K | 0.5 | 0.6 | 2.1 | 2.5 | 9 |
| H05V-K | 0.75 | 0.6 | 2.2 | 2.7 | 12 |
| H05V-K | 1.0 | 0.6 | 2.4 | 2.8 | 15 |
| H07V-K — 450/750V, General Building & Panel Wiring | |||||
| H07V-K | 1.5 | 0.7 | 2.8 | 3.4 | 21 |
| H07V-K | 2.5 | 0.8 | 3.4 | 4.1 | 33 |
| H07V-K | 4 | 0.8 | 3.9 | 4.8 | 47 |
| H07V-K | 6 | 0.8 | 4.4 | 5.3 | 66 |
| H07V-K | 10 | 1.0 | 5.7 | 6.8 | 112 |
| H07V-K | 16 | 1.0 | 6.7 | 8.1 | 170 |
| H07V-K | 25 | 1.2 | 8.4 | 10.2 | 261 |
| H07V-K | 35 | 1.2 | 9.7 | 11.7 | 358 |
| H07V-K | 50 | 1.4 | 11.5 | 13.9 | 510 |
| H07V-K | 70* | 1.4 | 13.2 | 16.0 | 927* |
| H07V-K | 95* | 1.6 | 15.1 | 18.2 | 510* |
| H07V-K | 120 | 1.6 | 16.7 | 20.2 | 1,170 |
| H07V-K | 150 | 1.8 | 18.6 | 22.5 | 1,459 |
| H07V-K | 185 | 2.0 | 20.6 | 24.9 | 1,776 |
| H07V-K | 240 | 2.2 | 23.5 | 28.4 | 2,333 |
Packaging & Delivery
| Parameter | Standard |
|---|---|
| Package | 100m per roll, export wooden case & pallet |
| Roll Marking | Manufacturer, H05V-K/H07V-K, voltage, cross-section, length, weight, batch, HAR/VDE/BS marks |
| Colour Options | Blue, brown, black, grey, green/yellow, white, red — IEC 60446 standard range |
| Outer Protection | Wooden case — standardised packaging across all single-core building wire products |
| Delivery Condition | Factory-new, tested per EN 50525-2-31 / VDE 0285 / BS EN 50525-2-31, HAR marked |
Typical Applications
H05V-K/H07V-K flexible wire is the standard internal wiring conductor for switchgear, relay and instrumentation panels — wherever the wire must follow complex routing without kinking:
Switch Control Panels
Standard internal wiring for LV and MV switchgear. Class 5 flexibility routes around breakers, busbars, and through tight trunking.
Relay & Instrumentation Panels
Point-to-point wiring in PLC cabinets, relay logic panels, and process instrumentation enclosures — the primary application domain.
Motor Starters & Controllers
Internal wiring of DOL starters, star-delta starters, and VFD enclosures. Flexible wire handles vibration better than solid core.
Rectifier Equipment
Internal connectors in rectifier equipment and power supply cabinets — rated for stationary and static appliance use.
EU / UK Panel Export
HAR mark + VDE + BS triple certification. Eliminates compliance re-certification when exporting completed panels to European customers.
Building Wire Wholesale
Standard export packaging (100m/roll, wooden case). Available in full IEC 60446 colour range for complete panel wiring kits.
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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.