Factory-Direct Supply of Certified Wires and Conductors for Diverse Industrial Applications
Cable NYAF Cu/PVC 70℃ 450/750 V
Voltage: 450/750V, test 2,500V, panel and switchgear internal wiring
Conductor: Flexible annealed copper, Class 5 stranding, 30-2,035 wires per IEC 60228
Insulation: PVC, 0.7-2.6mm wall, 70°C continuous, IEC 60332-1 flame retardant
Bending: 4×D (≤8mm) / 5×D (8-12mm) / 6×D (>12mm) — tightest panel wire
Range: 1.5-400mm², 17 sizes with ampacity + 1s short-circuit current
Temperature: -30°C to +70°C
Standard: IEC 60227-1, SNI 04-6629.3 (Indonesia), IEC 60228 Class 5
Product Overview
Cable NYAF Cu/PVC 450/750V is a single-core flexible copper conductor PVC insulated electrical wire manufactured to IEC 60227-1 and Indonesian national standard SNI 04-6629.3. The defining feature of NYAF is its Class 5 flexible stranding per IEC 60228 — the finest stranding class for fixed wiring, using up to 2,035 individual wires in the 400mm² variant. This produces a cable that bends like cord through the tightest switchgear compartments, control panels, and relay cabinets without kinking or spring-back, while maintaining the exact same current-carrying capacity and voltage rating as its Class 2 (stranded) and Class 1 (solid) counterparts for the same cross-section. The flexible annealed bare copper conductor is PVC insulated with a 70°C continuous rating, 160°C short-circuit withstand (calculated at 1s), and flame retardancy per IEC 60332-1.
Where solid wire (NYA/BV) prefers straight lines and stranded wire (H07V-R) tolerates gentle bends, NYAF is the wire you want when the path from the circuit breaker to the terminal block involves multiple 90-degree turns through a crowded enclosure. The bending radius is inversely graduated by cable diameter — 4×D for ≤8mm (1.5-10mm²), 5×D for 8-12mm (16-35mm²), 6×D for >12mm (50-400mm²) — making the smaller sizes the most flexible panel wires available. With a -30°C to +70°C operating range and a 2500V test voltage, NYAF is suitable for stationary and static appliances in all climate zones from tropical switchrooms to arctic control houses.
NYAF completes the building wire flexibility spectrum: NYA (solid, Class 1) for terminals where the wire never moves, NYAF (flexible, Class 5) for panel interiors where the wire must follow complex routing paths, and Class 6 extra-flexible (H07V-K equivalent) for applications requiring repeated flexing. The 100m export wooden case packaging is standardised across the range — the same case format used for all single-core building wires — simplifying mixed-order consolidation in container loading for electrical wholesalers and panel builders.
Insulation — PVC, 70°C rated, 0.7-2.6mm per size
Conductor — Stranded flexible copper, Class 5 per IEC 60228, 30-2,035 wires
Cross-Section Diagram — Honeycomb packing of ~37 fine copper strands shows the dense multi-wire Class 5 construction
Class 5 Flexible Copper
Up to 2,035 strands (400mm²). Dense honeycomb packing — bends like cord, not cable. Fine wire construction per IEC 60228 Class 5 for panel wiring.
PVC Insulation 70°C
0.7-2.6mm wall thickness by size. 70°C continuous, 160°C equivalent short-circuit (1s rating). Flame retardant per IEC 60332-1.
Tiered Bending Radius
4×D (≤8mm), 5×D (8-12mm), 6×D (>12mm). Tighter than Class 2 (15×D) — designed for complex panel routing.
Full Ampacity + Short-Circuit Data
17 sizes with 8 columns: OD, weight, DC resistance, insulation thickness, ampacity (30°C air), conductor makeup, 1s short-circuit current.
450/750V Panel Wire
Same voltage class as solid house wire. Switch control, relay panels, instrumentation, rectifier equipment, motor starters.
SNI Certified (Indonesia)
IEC 60227-1 + SNI 04-6629.3 dual certification. Indonesian national standard — mandatory for Indonesian electrical panel and switchgear procurement.
Technical Characteristics
| Rated Voltage U₀/U | 450/750V |
| Test Voltage | 2,500V |
| Max. Conductor Temperature | +70°C (continuous) |
| Operating 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 Stranding Class | Class 5 (flexible) per IEC 60228 |
Building Wire Flexibility Spectrum
| Type | Stranding | Bending | Use Case |
|---|---|---|---|
| NYA / H07V-U | Class 1 (solid) | 15×D | Fixed wiring, screw terminals — never moves |
| H07V-R | Class 2 (stranded) | 15×D | Conduit pull-through, gentle routing |
| NYAF / H07V-K | Class 5 (flexible) | 4-6×D | Panel interior, tight routing, complex paths |
| H07V-K (extra-flex) | Class 6 | 3×D | Repeated flexing, drag chains, moving equipment |
Applicable Standards
| Standard | Scope |
|---|---|
| IEC 60227-1 | International standard for PVC insulated cables of rated voltages up to and including 450/750V. Covers NYAF type flexible single-core wire. |
| IEC 60228 Class 5 | Conductor standard specifying flexible stranding — the finest class for fixed wiring with individually fine wires per conductor makeup table. |
| SNI 04-6629.3 | Standar Nasional Indonesia — Indonesian national standard for PVC insulated flexible cables. Mandatory for electrical equipment sold in Indonesia. |
| IEC 60332-1 | Single cable vertical flame test. Required for panel wiring in all markets to prevent fire propagation between compartments. |
Technical Specifications
Flexible annealed bare copper per IEC 60228 Class 5. PVC insulation, 70°C. DC resistance at 20°C. Current-carrying capacity at 30°C ambient air. Short-circuit current: 1s withstand. Conductor makeup: wire count × wire diameter (mm). 17 sizes from 1.5mm² to 400mm², all in 100m export wooden case rolls.
| Cross Section (mm²) | Conductor Make-Up (No. × mm) | Insulation (mm) | O.D. (mm) | Weight (kg/km) | 20°C Res. (Ω/km) | Ampacity 30°C Air (A) | Short-Circuit 1s (A) |
|---|---|---|---|---|---|---|---|
| 1.5 | 30 × 0.25 | 0.7 | 3.1 | 22 | 13.30 | 24 | 173 |
| 2.5 | 50 × 0.25 | 0.8 | 3.7 | 33 | 7.98 | 32 | 288 |
| 4 | 56 × 0.30 | 0.8 | 4.3 | 49 | 4.95 | 41 | 460 |
| 6 | 84 × 0.30 | 0.8 | 4.9 | 69 | 3.30 | 53 | 690 |
| 10 | 80 × 0.40 | 1.0 | 6.3 | 116 | 1.41 | 72 | 1,150 |
| 16 | 128 × 0.40 | 1.0 | 7.4 | 175 | 1.21 | 97 | 1,840 |
| 25 | 200 × 0.40 | 1.2 | 9.0 | 270 | 0.78 | 128 | 2,875 |
| 35 | 280 × 0.40 | 1.2 | 10.5 | 371 | 0.554 | 156 | 4,025 |
| 50 | 400 × 0.40 | 1.4 | 12.4 | 527 | 0.386 | 195 | 5,750 |
| 70 | 356 × 0.50 | 1.4 | 14.1 | 716 | 0.272 | 243 | 8,050 |
| 95 | 485 × 0.50 | 1.6 | 16.3 | 969 | 0.206 | 285 | 10,925 |
| 120 | 614 × 0.50 | 1.6 | 17.9 | 1,208 | 0.161 | 342 | 13,800 |
| 150 | 765 × 0.50 | 1.8 | 20.0 | 1,508 | 0.129 | 386 | 17,250 |
| 185 | 944 × 0.50 | 2.0 | 22.2 | 1,860 | 0.106 | 441 | 21,275 |
| 240 | 1,225 × 0.50 | 2.2 | 25.1 | 2,403 | 0.0801 | 520 | 27,600 |
| 300 | 1,530 × 0.50 | 2.4 | 28.0 | 3,003 | 0.0641 | 605 | 34,500 |
| 400 | 2,035 × 0.50 | 2.6 | 32.0 | 3,971 | 0.0486 | 725 | 41,200 |
Packaging & Delivery
| Parameter | Standard |
|---|---|
| Package | 100m per roll, export wooden case and pallet — standard for all single-core building wires |
| Roll Marking | Manufacturer, NYAF, voltage, cross-section, colour, length, weight, batch, IEC/SNI marks |
| Colour Options | Black, white, red, blue, green/yellow, brown, grey — standard range per IEC 60446 |
| Outer Protection | Wooden case protects fine-strand PVC cable from crushing during sea freight |
| Delivery Condition | Factory-new, tested per IEC 60227-1 / SNI 04-6629.3, test certificate on request |
Typical Applications
NYAF flexible wire is the standard internal wiring conductor for industrial control panels, switchgear, and electrical equipment where rigid solid wire cannot follow the complex routing paths inside crowded enclosures:
Switchgear Internal Wiring
Point-to-point wiring in LV and MV switchgear compartments. 4×D bending radius navigates tight breaker and busbar clearances.
Control & Relay Panels
Standard wire for industrial motor control centres (MCC), PLC cabinets, and relay logic panels where dozens of wires share tight trunking.
Instrumentation Panels
Flexible wire for process instrumentation, RTD/thermocouple connections, and transducer wiring where fine-gauge flexibility simplifies installation.
Motor Starters & Controllers
Internal wiring of DOL starters, star-delta starters, soft starters, and VFD enclosures — where vibration resistance of flexible wire extends service life.
Rectifier Equipment
Internal DC bus connections in rectifier and power supply cabinets. Class 5 stranding handles DC ripple heating better than solid wire.
Indonesian Market
SNI 04-6629.3 certified — mandatory for electrical panels and switchgear sold in Indonesia. IEC 60227-1 ensures international acceptance.
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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.