Square D equipment with RB suffix, designated Rainproof (NEMA 3R rainproof construction), utilizes bolt-on hubs listed. RB devices will accept 3/4″ through 2-1/2″ bolt-on hubs without the use of reducers. Off-center conduit thread openings and elongated mounting holes provide quick and easy adjustment to eliminate costly conduit offsets and bends. For use in Square D load centers, CSED devices and safety switches. Type B. UL (Underwriter’s Laboratories) and CSA (Canadian Standards Association) safety listed. No. B100: Conduit Size: 1″, Type: RB Bolt-, Material: NEMA 3R Rainproof, Pkg Qty: 1, Package Type: Box No. B125: Conduit Size: 1-1/4″, Type: RB Bolt-, Material: NEMA 3R Rainproof, Pkg Qty: 1, Package Type: Box No. B150: Conduit Size: 1-1/2″, Type: RB Bolt-, Material: NEMA 3R Rainproof, Pkg Qty: 1, Package Type: Box No. B200: Conduit Size: 2″, Type: RB Bolt-, Material: NEMA 3R Rainproof, Pkg Qty: 1, Package Type: Box
