International Flexible Steel Conduit (UL Listed. Reduced Wall Steel. Type RWS.) Uses • Specifications • Home Page FEATURES: Steel construction Premium hot dip galvanized zinc coating Superior corrosion resistance Smooth interior for easy wire pull-thru Easy installation to follow contours Available cut to custom lengths Extra flexibility for simplified positioning Listed connectors available from leading manufacturers For fixture whip and modular wiring assemblies, a special version lays straight and flat when cut, to give consistent lengths and easy wire insertion Complies with UL-1 File number E25633, NEC Article 350 and Federal Specification WW-C-566C 5/16" and 3/8" RWS are CSA Certified, File number 14901 Available in units cut to specific lengths - consult factory USES: International Flexible Steel Conduit can be used where Underwriters Laboratories listing is required. The 3/8"and 5/16" Tradesize also carries Canadian Standards Certification. SPECIFICATIONS: Trade Size And Catalog Number Acceptable Internal Diameter Acceptable External Diameter Bending Radius in Inches Approx. Weight of 100 Ft. Approx. Feet Per Standard Coil Min. Max. Min. Max. RWS-5/16† 0.312 ––– 0.470 0.510 1-3/4 13 250 or 500 RWS-3/8† 0.375 0.393 0.560 0.610 2 19.5 100 or 250 RWS-1/2 0.625 0.645 0.860 0.920 3 27 100 RWS-3/4 0.812 0.835 1.045 1.105 4 35.1 100 RWS-1 1.000 1.040 1.300 1.380 5 52 50 RWS-1-1/4 1.250 1.300 1.550 1.630 6-1/4 62 50 RWS-1-1/2 1.500 1.575 1.850 1.950 7-1/2 88 25 RWS-2 2.000 2.080 2.350 2.450 10 114 25 RWS-2-1/2 2.500 ––– 2.860 3.060 12-1/2 184 25 RWS-3 3.000 ––– 3.360 3.560 15 202 25 RWS-3-1/2* 3.500 ––– 3.860 4.060 17-1/2 156 25 RWS-4* 4.000 ––– 4.360 4.560 20 210 25 Special packaging: 5/16" & 3/8"- Available in 1000 ft., 1500 ft. and 2000 ft. reels. 1/2" and 3/4" are available in 500 ft. and 1000 ft. reels. 1" through 4" are available on reels - consult factory. † CSA Certified per CSA C22.2 File number 14901. May be supplied with dual listing for UL/CSA * THESE SIZES ARE NOT LISTED BY UNDERWRITERS LABORATORIES. Select HWS if you need U.L. listing for 3-1/4" and 4" flexible steel conduit.