Tri-rated cable is a high-temperature, single-core flexible panel wire simultaneously certified under three major international regulatory standards: BS 6231 (Type CK), UL 1015 (Style 1015/1283), and CSA C22.2 No. 127 (Type TEW). Manufactured with Class 5 flexible plain annealed copper conductors per IEC 60228 and insulated with heat-resistant PVC (HR PVC), it operates continuously up to 105°C at rated voltages up to 600/1000V. Designed for internal wiring within electrical switchboards, control panels, motor starters, and power distribution enclosures, Tri-rated cable unifies European, American, and Canadian compliance into a single manufacturing specification.
Technical Specification & Multi-Standard Comparison Matrix
The structured comparison matrix below details the governing parameters across all core certification frameworks for Tri-rated PVC flexible cable:
| Specification Parameter | BS 6231 (Type CK) | UL 1015 / UL 1283 | CSA C22.2 No. 127 (TEW) | European Harmonized Equivalent (H05V2-K / H07V2-K) |
| Rated Voltage () | 600/1000 V AC | 600 V AC / 750 V DC | 600 V AC | 300/500 V (H05) / 450/750 V (H07) |
| Max Operating Temp (Fixed) | -15°C to +90°C | -15°C to +105°C | -15°C to +105°C | -5°C to +90°C |
| Max Temperature (Flexing) | +5°C to +90°C | +5°C to +105°C | +5°C to +105°C | +5°C to +90°C |
| Conductor Construction | IEC 60228 Class 5 Stranded | ASTM B174 / Stranded Plain or Tinned | ASTM B174 / Stranded Plain or Tinned | EN 60228 Class 5 Flexible Copper |
| Insulation Material | Heat Resistant PVC (Type TI 3) | Flame Retardant PVC (VW-1) | Flame Retardant PVC (FT1) | HR PVC (Type TI 3) |
| Flame Retardancy Standard | BS EN 60332-1-2 | UL 1581 (VW-1 Vertical) | CSA FT1 Flame Test | IEC 60332-1-2 |
| Target Regional Standard | UK & Commonwealth | United States (UL Listed) | Canada (CSA Certified) | European Union (HAR Harmonized) |
Material Construction & Structural Properties
- Conductor Core: High-purity Class 5 plain annealed fine copper strands providing optimal bend flexibility, high fatigue resistance under mechanical vibration, and low electrical resistance per IEC 60228.
- Insulation Compound: Premium Heat-Resistant Polyvinyl Chloride (HR PVC) engineered to maintain structural integrity and dielectric strength under continuous thermal loads up to 105°C.
- Flame Propagation Resistance: Meets strict self-extinguishing criteria under UL VW-1, CSA FT1, and IEC 60332-1-2 to prevent fire spread along vertical cable runs inside enclosures.
- Chemical & Oil Durability: Formulated to resist exposure to transformer oils, lubricating fluids, industrial solvents, acids, and atmospheric moisture.
Industrial Applications & Engineering Standards
Tri-rated cable is specified across high-density switchgear installations where compact routing, tight bending radii, and elevated heat dissipation are critical requirements.
- Control Gear & Switchboards: Primary internal hook-up wiring for motor control centers (MCC), low-voltage switchboards, power relays, and circuit breaker connections.
- Global OEM Equipment Manufacturing: Eliminates stock duplication for export machinery by complying with UK, US, Canadian, and European panel assembly standards under one SKU.
- Power Transformer & Rectifier Connections: High thermal endurance allows direct termination adjacent to high-heat components like power transformers, frequency converters, and industrial drives.
- Governing Industry Standards: BS 6231 Type CK, UL Style 1015 ( / 14 AWG), UL Style 1283 (), CSA TEW, BS EN 60228, IEC 60332-1-2.