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
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.
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.
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.

ISI Standard for Indian Market

Approved for Indian Railways

Approved for Indian Naval Applications

Approved for Aerospace & Defense Applications

CE Mark for European Economic Area (EEA)

ETL Listing from Intertek for North America Market

IEC Approval from International Electrotechnical Commission (IEC

International Automotive Quality Management Certification

NSW (New South Wales) Approval for Australia Market

PSE Approval for Japan Market

Safety Mark for Singapore Market

VDE Mark for European Market

DEKRA Mark for Global Market

ENEC Mark for European Market