Southwire #: 55092701

Aluminum Flexible Metal Conduit. High Strength Aluminum Alloy Strip. 5/16" is UL Recognized Component. UL Listed in sizes 3/8" to 3".

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Alflex™ Type RWA (Reduced Wall Aluminum) Flexible Metal Conduit is suitable for the following installations:

  • Environmental air-handling spaces per NEC 300.22(C)
  • Power and lighting branch circuit conductors and cables for connecting receptacles, luminaires, equipment, office partitions, etc.
  • Metal raceway for wires and cables per NEC (ANSI/NFPA-70) Article 348
  • Motor feeder, branch, and control circuit conductors and cables
  • Class 1, Class 2, Class 3 Remote-control, signaling, and power-limited circuit conductors and cables
  • Fire alarm system conductors and cables of power-limited or non-power-limited fire alarm circuits
  • Voice, data, communications and video cables including CATV and optical fiber cables
  • Concealed or exposed installations per NEC 348 and the applicable NEC provisions
  • Elevators, hoistways, and escalators per NEC 620.21
  • Listed wired fixtures per NEC 410.77(C)
  • Raised floors for connection of information technology per NEC 645.5(D)(2) and 645.5(D)
  • Places of assembly and theaters per NEC 518 and 520
  • Cranes & hoists per NEC 610.11(C)
  • As a grounding conductor for lengths up to 6 feet (20A max) as per NEC 250.118(5)
  • Electric signs and outline lighting per NEC 600.7, 600.31 (1000 volts or less), and 600.32 (>1000 volts)
  • Hazardous location, Class 1, Div. 2, for flexible connectors only per NEC 501.10(B)(2) & 501.30(B)
  • UL 1, 2, & 3 Hour Through-Penetration Firestop Systems: C-AJ-1462, C-AJ-1463, C-AJ-1464, W-L1308, and W-L-1309


Stock # 55092701 55092701
Trade Size (in) (cm) 1-1/2 3.81 inch cm
Inner Diameter (min/max) 1.500 / 1.575 3.81 / 4.00 inch cm
Outer Diameter (min/max) 1.850 / 1.950 4.70 / 4.95 inch cm
Nominal Total Weight (lbs/1000') (kgs/km) 311 463 lbs/1000' kgs/km
Min. Bend Radius (in) (cm) 7.5 19.05 inch cm

Standards & References

Alflex™ Type RWA Flexible Metal Conduit meets or exceeds the following requirements:

  • UL Listed per UL 1, Standard for Safety for Flexible Metal Conduit, ANSI/UL-1
  • Meets federal specification WW-C-566c
  • NEC Type Designation - Article 348, Type FMC (flexible metal conduit)
  • UL Product Category- DXUZ
  • REACH/RoHS-2 (Chemical Limit) Compliant


Alflex™ Type RWA is manufactured with a lightweight, high strength aluminum alloy. Metal strip is helically formed into continuously interlocked flexible metal conduit that can withstand impact and crushing forces.