Allen-Bradley 1746-0B16E Discrete Output Module

The Allen-Bradley 1746-OB16E is a 16-channel discrete output module for Rockwell's 1746 I/O family, designed to plug into a 1746 backplane and be controlled by an SLC 500 controller. The “E” suffix denotes enhanced output protection, providing improved overload and short‑circuit protection for connected loads. This Series B module delivers 16 independent outputs that switch external DC loads and is commonly used to drive relays, contactors, and other field devices in automation systems, wiring into standard 1746 racks alongside other 1746 I/O modules. The OB16E is designed for plug‑in compatibility within Rockwell’s 1746 backplane ecosystem, enabling straightforward integration into existing control architectures; exact electrical characteristics—such as supported supply voltage, per-channel current capability, and response timing—vary by revision, so consult the official 1746-OB16E specification from Rockwell Automation or trusted catalogs to confirm it meets your load requirements and installation guidelines.