Reference Data - Cooper Industries

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NominalMinimum WeightWeight of ConduitNominalOutsideInsidePer 100 Ft. ( ) withand ConductorsConduit SizeDiameterDiameterCouplings AttachedPer 100 Ft. ( )*In. (10) ( ) ( ) ( ) ( )1/2 (15) ( ) ( ) ( ) ( )3/4 (20) ( ) ( ) ( ) ( )1 (25) ( ) ( ) ( ) ( )11/4 (32) ( ) ( ) ( ) ( )11/2 (40) ( ) ( ) ( ) ( )2 (50) ( ) ( ) ( ) ( )21/2 (65) ( ) ( ) ( ) ( )3 (80) ( ) ( ) ( ) ( )31/2 (90) ( ) ( ) ( ) ( )4 (100) ( ) ( ) ( ) ( )5 (125) ( ) ( ) ( ) ( )6 (150) ( ) ( ) ( ) ( )Rigid Steel Conduit (Heavy Wall Conduit)Intermediate Metal Conduit (IMC)NEC Table 346-12*Conduit plus weight of heaviest conductor combination as specified by the National Electrical and Intermediate Metal Conduit shall be supported at least every 10 feet ( m) and within 3 feet (914 mm) of eachoutlet box, junction box, cabinet, or fitting, except for straight runs of conduit connected with couplings which may besupported in accordance with NEC Article 345 and 346, provided such supports prevent transmission of stresses totermination where conduit is deflected between taken from ANSI *Conduit plus weight of heaviest conductor combination as specified by the National Electrical SizeMaximum

Nominal Minimum Weight Weight of Conduit Nominal Outside Inside Per 100 Ft. (30.5m) with and Conductors Conduit Size Diameter Diameter Couplings Attached Per 100 Ft. (30.5m)*

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