Square D B200 Bolt On Interchangeable Raintight Hub

The Square D B200 bolt-on raintight hub is a 2-inch conduit-entry accessory designed for RB-series Square D devices (R or RB suffix), providing a weatherproof conduit connection for field wiring. With a NEMA 3R rainproof rating, it bolts into the device’s B opening to serve as a secure entry for standard bolt-on hubs used with RB equipment, enabling outdoor or damp-location installations without compromising enclosure integrity. RB devices will accept 3/4" through 2½" bolt-on hubs without the need for reducers, making the B200 a versatile choice for conduit sizing within the RB family. This hub is specifically intended for RB-rated load centers and safety switches, helping installers maintain a compliant, protected conduit interface while keeping wiring neatly organized and readily accessible for service.