Allen-Bradley 1756-OB16E ControlLogix DC Output Module

The Allen-Bradley 1756-OB16E ControlLogix DC Output Module is a 16-point digital DC output card designed for ControlLogix I/O backplanes, delivering 16 individually fused outputs to switch field devices from a 10 to 31.2 V DC supply. Each output is electronically fused for protection, enabling safer operation of common 24 V DC actuators such as solenoids and relays within industrial panels, while integrating with the 1756 I/O bus and a ControlLogix processor. The module supports removable terminal blocks to simplify field wiring and configuration, with firmware documented for 1756-OB16E as v3.004 to ensure compatibility with contemporary ControlLogix systems. As a high-channel-count DC output solution, it is well-suited for applications requiring reliable energization of multiple actuators across automation racks, and it adheres to Rockwell Automation practices for ControlLogix I/O networking and power management. This makes the 1756-OB16E a robust choice for compact, scalable control of DC loads in manufacturing lines, packaging machines, and process automation where precise, isolated DC outputs are essential.