Type CMSU- UL Listed

General purpose steel - Flexible metal conduits

Commercial grade liquid-tight flexible metal conduits, designed for use with Steel City® liquid-tight fittings. Typically used in "Greenfield" commercial construction and infrastructure applications.

Features & benefits:

  • Meets requirements of UL 1 for Flexible Metal Conduits (1/2” to 3” trade sizes)
  • Full compliance to IEC/EN 61386-1 requirements, CE Certified
  • Trade sizes from 3/8” to 4” (12mm to 103mm)
  • Suitable for use with T&B Fittings® and Steel City® fittings
  • Suitable for use with Iberville fittings, listed for use with flexible metal conduits


  • The CMSU conduit is intended for use as a metal raceway for wires and cable in accordance with National Electrical Code® (NEC®), Article 348
  • Permitted to be used in exposed and concealed locations (Section 348.10)
  • Grounding conductor requirement for flexible installations (Section 348.60)
  • Suitable as an equipment grounding conductor (Section 250.118)
  • Raceway connection to motors (Section 430.223)
  • Refer to CEC Rule 12-1000 for the proper use of CMSU flexible metal conduits.

Construction / Material / Finish:

  • High strength hot dipped galvanised steel core
  • Helically wound, formed strip
  • Color: Metallic
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