Allen Bradley 1746-OB16/D SLC 500 Digital DC Output Module

Product Introduction

The Allen-Bradley 1746-OB16/D is a digital DC output module designed for use within the SLC 500 programmable controller family. It is intended for reliable switching and control of DC-powered field devices in industrial automation systems where consistent output behavior and electrical robustness are required.

This module provides 16 independent DC output points, allowing high output density in a single I/O slot. It is commonly used to control solenoids, relays, indicator lamps, and other DC actuators in machine control and process automation applications. The /D revision represents a specific hardware revision of the 1746-OB16, maintaining functional compatibility while reflecting manufacturing or component-level updates.

Designed for continuous operation in industrial control cabinets, the 1746-OB16/D integrates seamlessly with SLC 500 processors and chassis. Its solid-state output architecture ensures predictable switching performance and long-term reliability in both new installations and existing legacy systems.

Product Specifications

Applications

• Industrial machine control, driving DC solenoids, relays, and pilot devices

• Manufacturing automation, providing reliable output control for production equipment

• Material handling systems, switching DC actuators and indicators

• Process control panels, managing DC field devices under PLC supervision

• Packaging and assembly machinery, enabling precise and repeatable output switching

• Legacy SLC 500 systems, maintaining compatibility while replacing or expanding output capacity

Advantages

• High output point density, delivering 16 DC outputs in a single module

• Solid-state output design, minimizing mechanical wear and maintenance requirements

• Electrical isolation, protecting the controller and backplane from field-side disturbances

• Predictable switching performance, supporting stable machine operation

• Seamless integration with SLC 500, ensuring straightforward configuration and replacement

• Industrial-grade reliability, suitable for continuous duty applications

• Revision compatibility, allowing drop-in replacement within supported systems

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