SPEC 60520

Ultratite® Type NM

Liquidtight Flexible Nonmetallic Conduit. UL/CSA Listed. Oil-Resistant. Sunlight-Resistant. Crush-Resistant. Temperature Rated -30°C to 80°C.



  1. PVC: Ultratite® Type NM is manufactured with rigid PVC reinforcement imbedded within a flexible PVC wall. The construction provides excellent impact and crush strength while remaining highly flexible. The conduit resists oils, mild acids and exposure to sunlight.

Applications and Features:

Ultratite® Type NM is suitable for the following installations:
  • For the installation and protection of electrical conductors
  • Motor circuits - for conductors of motor feeders, branch and control circuits.
  • Where the conditions of installation, operation, or maintenance require flexibility or protection from liquids, vapors, solids, or weather
  • Agricultural buildings per NEC® 547.5
  • Used in industrial and commercial applications for conveyors, blowers, cranes, air conditioners, machine tooling and lubrication equipment
  • Exposed or concealed installations
  • Applications requiring movement, crossover connections, or tight bends
  • For direct burial and encased in concrete
  • For flexible connections to swimming pool, spa, and hot tub motors per NEC® 680.21(A)(3) & 680.42(A)(1)
  • Electric signs and outline lighting supply and secondary-circuit conductors per NEC® 600.7, 600.31 (1000 volts or less) & 600.32 (over 1000 volts)
  • Floating building feeders and services per NEC® 553.7
  • Boatyards & Marinas in accordance with NEC® 555.13
  • Cranes & Hoists in accordance with NEC® 610.11(C)
  • For Elevator, Dumbwaiters, Escalators, Moving Walks, Wheel Chair Lifts & Stairway Chair Lifts in accordance with NEC® 620.21 (where expressly permitted)
  • Under raised floors in information technology equipment conductors and cables in accordance with NEC® 645.5 (D) & 645.5(D)(2)
  • Service entrance in lengths up to six feet per NEC® 230.43(15)
  • For containment of 600 Volt and lower potential circuits
  • Approved for use in lengths longer than 6 feet per NEC® 356.10(5)
  • Motor leads per NEC® 430.145(B)

  • Hazardous location:
  • Class I, Div. 2 - NEC® 501.10(B)(2)
  • Class II, Div. 1 - NEC® 502.10(A)(2)
  • Class II, Div. 2 - NEC® 502.10(B)(2)
  • Class III, Div. 1 - NEC® 503.10(A)(2)
  • Class III, Div. 2 - NEC® 503.10(B)

  • Ultratite® Type NM Features
  • A protective combination of thermoplastic materials formed into a conduit/raceway which seals out water, liquids, abrasives, alcohol, coolants, corrosive fumes and gases, dirt, grease, mineral acids, non-concentrated fixed alkalines, petroleum oils, salt air and spray, and weather
  • Smooth interior for easy wire pulling
  • UV sunlight resistant jacket
  • Rated for temperature range of -30°C to 80°C , 60°C Oil (-22 to +176, 140°F Oil)
  • Accepts standard liquid-tight fittings for use with LFNC-B
  • Specifications:

  • UL 1660 Liquid-Tight Flexible Nonmetallic Conduit
  • NFPA 70 (National Electrical Code), Article 356 - Liquidtight flexible nonmetallic conduit
  • Ultratite® Type NM
    Trade SizeInner Diam (Min/Max)Outer Diam (Min/Max)WeightMinimum Bend Radius

    Put Ups

    25 ft50 ft100 ft150 ft250 ft300 ft400 ft500 ft600 ft1000 ft

    Revision: 1.000.015

    Updated On: Dec. 11, 2023, 9:29 p.m. UTC