Allen-Bradley 1746-0B16 Output Module

Allen-Bradley 1746-0B16 Output Module is a 16-channel DC output card for the SLC 500 family, providing sixteen 24V DC outputs (sourcing) to drive external devices such as relays, solenoids, or indicator loads from a Rockwell Automation controller. This DC output module plugs into a 1746 backplane in an SLC 500 rack and is compatible with the SLC IO architecture, enabling discrete addressing of each channel to energize or de-energize connected loads. The 1746-OB16 family, including the 1746-0B16 designation, is documented as a 16-point DC output module used in legacy SLC systems, with heat dissipation specified at a total 7.60 W for the module and about 0.388 W per point, reflecting the energy dissipated while switching loads. Rockwell Automation notes that the SLC 16-point DC Output Module was discontinued as of September 30, 2024, so current availability depends on remaining distributor stock or legacy-equipment channels. This module is typically used in automation panels requiring compact, centralized DC output control for small to medium loads, fitting into standard SLC 500 installations to extend the controller’s ability to manage multiple DC-driven devices from a single rack.