Building Wires (UL 83, UL 44)

UKB is a manufacturer of UL-44 Thermoset (XHHW-2/RHH/RHW-2) Building Wire, 600/1000 V, designed for general-purpose electrical installations, primarily in conduits, recognised raceways, open air, and cable trays, in accordance with the National Electrical Code (NEC). It features bare copper or AA-8000 series aluminum alloy conductors with thermoset cross-linked polyethylene (XLPE) insulation, offering excellent insulation toughness and chemical resistance for industrial applications. Suitable for dry and wet locations, it is rated for a maximum operating temperature of 90°C and is designed for installation without pulling lubricant. The product complies with applicable UL 44 and ASTM standards.

Types of Cables
UL 83 – Thermoplastic (THHN, THWN-2) Building Wire 600 V
UL-44 Thermoset (XHHW-2/RHH/RHW-2) Building Wire 600/1000 V

UL 83 - Thermoplastic (THHN, THWN-2) Building Wire 600 V

THHN means thermoplastic, high heat resistant, nylon coated and THWN-2 is similar, but has additional weather and water resistance. It is a general purpose building wire as defined by the National Electrical Code (NEC) and is used for services, feeders, and branch circuits in residential and commercial applications. This wire is rated for maximum 90°C in both wet and dry locations and only to 75°C when ex- posed to oil. The UL 83 standard rating is given to single conductor, thermoplastic insulated wire and cables rated to 600 volts.

Construction

  • Technical Information
    Voltage Range: 600 V
    Temperature Range: -40°C to 90°C
  • Construction/Material
    Conductor: Annealed Bare Copper & Aluminum Alloy
    Insulation: PVC 90degC
    Jacket: Nylon-6 Product Range
    8 AWG to 1000 MCM
  • Standard Reference
    UL 83 – ASTM B3
    UL 1581 – ASTM B8
    UL 2556 – ASTM B787
    NFPA 70 (National Electrical Code)
    CSA C22.2 No. B 75-14

UL-44 Thermoset (XHHW-2/RHH/RHW-2) Building Wire 600/1000 V

The National Electrical Code (NEC) specifies general purpose building wire for use principally in conduit or other recognised raceways. Superior insulating toughness and chemical resistance are essential in industrial applications. In dry or wet areas, the maximum working temperature shall not exceed 90 degrees Celsius, and in open air, raceways, or cable trays, in compliance with the NEC. This product is intended to be fitted without the use of a pulling lubricant.

Construction

  • Conductor : Copper Class B compressed/compact stranded bare copper per ASTM B3 and ASTM B8 Aluminum AA-8000 alloy compacted conductor, Class B stranding, per ASTM B801.
  • Size : 8 Awg – 1000 Kcmil
  • Insulation : Thermoset cross-linked polyethylene
  • Applicable Standard :
    UL 44
    ASTM B3 Soft or Annealed Copper
    ASTM B8 Concentric-lay-stranded copper
Complete Range
Understanding the Essentials

Why Choose UKB Electronics?

Choosing UKB means partnering with a manufacturer that controls quality at every stage. Our vertical integration in conductor processing and compound formulation gives us an unmatched ability to produce reliable, high-performance instrumentation cables. We are not just assemblers; we are the core manufacturers, ensuring your critical systems operate with flawless accuracy.

BACKED BY WORLDWIDE COMPLIANCE

Recognized Across Borders, Trusted Across Industries

INDUSTRY EXPERTISE

Driving Innovation Across Industries