Adopted in all 50 states, the National Electric Code (NEC) or NFPA 70 is the set of rules and regulations for safe electrical design, installation and inspection of electrical wiring and equipment in residential, commercial and industrial occupancies alike. Whether...
UL or Underwriters Laboratories, is an independent, non-profit global safety certification company and testing laboratory headquartered in Northbrook, IL. UL conducts safety and quality tests on a broad range of products including more than 70 different wire and cable...
Class K stranding according to ASTM B174 (172), is a AWM strand count making up individual conductors. For example, a 12AWG conductor with Class K stranding will consist of 65 strands of 30AWG copper wire.
Polyurethane (PUR) is a halogen-free and self-extinguishing thermoplastic polymer with high memory properties. This material is notch, abrasion, oil and ozone resistant as well as flexible particularly in colder temperatures. Ideal for continuous flexing applications in cable carrier. For other jacket types, see Types of Cable Jackets.
Polyvinyl chloride (PVC)
Polyvinyl chloride (PVC) is a widely used synthetic plastic polymer for both cable jackets and insulation. Relatively inexpensive with good resistance to oils, moisture, sunlight, heat abrasion and weathering. Flame retardant and ideal for direct burial.
Machine Tool Wire (MTW)
Machine Tool Wire, denoted as “MTW” is a listing from UL for the wiring of general purpose curcuits, machine tools and internal wiring of control panels covered under UL standard 1063. To read more about Machine Tool Wire (MTW), see Overview of Machine Tool Wire (MTW)?
Appliance Wiring Material (AWM)
Appliance Wiring Material, denoted “AWM” is a certification issued by UL for wiring which is commonly used for general purpose wiring circuits, internal wiring of appliances, electrical cabinets or machines. To learn more about Appliance Wiring Material (AWM), see our Overview of Appliance Wiring Material (AWM). Or click the style number to be re-directed to the UL Style page
Class K stranding according to ASTM B174 (172), is a AWM strand count making up individual conductors. For example, a 12AWG conductor with Class K stranding will consist of 65 strands of 30AWG copper wire.
