THHN/THWN-2 Aluminum Armored Cable

Building Wires Power Cables55

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Product Description:
The THHN/THWN-2 Aluminum Armored Cable is a robust electrical cable engineered for environments requiring mechanical protection and high-temperature resistance. Featuring THHN/THWN-2 insulated conductors combined with lightweight aluminum armor, this cable eliminates the need for an outer jacket, streamlining its design while maintaining critical performance attributes.

Key Features:

  1. Conductor Construction
    • Conductor Material: Standard high-conductivity copper (aluminum available upon request).
    • Insulation: Dual-rated THHN/THWN-2 thermoplastic insulation.
      • THHN: Thermoplastic (PVC) insulation rated for 90°C (dry) and 75°C (wet), with abrasion-resistant nylon coating.
      • THWN-2: Water and oil-resistant insulation rated for 90°C in both wet/dry conditions (NEC Article 310 compliant).
  2. Armor Layer
    • Aluminum Interlocked Armor (AIA):
      • Delivers superior mechanical protection against crushing, impact, and rodent damage.
      • Lightweight design reduces installation complexity and cost compared to steel armor.
      • Corrosion-resistant for direct burial, duct use, or exposure to harsh chemicals.
      • Provides EMI shielding for sensitive electrical systems.

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Applications:

  • Industrial Power Systems: Machinery, conveyor systems, and plant floor circuits requiring flexibility and durability.
  • Direct Burial/Outdoor Use: Suitable for trenching or exposed installations where jacket-free armor simplifies grounding.
  • Commercial Wiring: Feeder lines, branch circuits, and control systems in corrosive or high-interference environments.
  • Temporary Installations: Construction sites, mining operations, and portable equipment.

Standards & Certifications:

  • UL 44 (Thermoplastic Insulated Wires and Cables).
  • NEC (NFPA 70) compliance (U.S. and international markets).
  • IEC 60502-1 (International power cable standards).

Model Example (Customizable):

  • Designation: THHN/THWN-2-AIA (e.g., 600V, 3/C #4 AWG with Aluminum Armor).
  • Functional Equivalent: Similar to AC90 (UL 4) or unjacketed MC Cable, optimized for lightweight armor.

Installation Notes:

  • Bending Radius: Minimum 7× cable diameter to avoid armor deformation.
  • Grounding: Aluminum armor must be bonded to the grounding system per NEC 250.
  • Environmental Suitability: Ideal for conduit-free installations; avoid prolonged UV exposure if used outdoors.

Summary:
This jacket-free THHN/THWN-2 Aluminum Armored Cable prioritizes simplicity and mechanical resilience, making it ideal for applications where traditional outer jackets are unnecessary or redundant. Customizable conductor sizes, armor configurations, and optional aluminum cores ensure adaptability to project-specific needs.