Allen-Bradley 1734-MB Mounting Bracket For 1734 Point IO

Allen-Bradley 1734-MB Mounting Base provides a DIN-rail mounting foundation for POINT I/O modules in the 1734 family, delivering secure mechanical support and a backplane interface for modular expansion in control cabinets. The POINT I/O wiring base assembly consists of this mounting base (MB) plus a removable terminal block (RTB), and the MB can be paired with an RTB such as 1734-RTB or 1734-RTBS to form the complete 1734-TB wiring base assembly that accepts 1734 POINT I/O modules. Depending on the RTB variant, termination style differs; for example, a 1734-TB3S assembly (1734-MB + 1734-RTB3S) uses spring-clamp termination. For DIN-rail installation, the installation instructions describe mounting the base to standard DIN rails (EN 50022), using compatible DIN-rail hardware such as 199-DR1. The 1734-MB thus serves as the mechanical anchor and interface for POINT I/O modules, enabling secure field wiring via the removable terminal block while keeping a compact, modular form factor within Allen-Bradley Point I/O systems.