Product Overview

The Allen-Bradley 1746-OW16/C/A​ is a high-density, 16-channel AC output module integral to the Allen-Bradley SLC 500 modular programmable controller system. Designed for direct control of alternating current loads, this module serves as a robust interface that translates the SLC 500 processor’s low-voltage logic commands into switched AC power outputs capable of driving industrial actuators, solenoids, contactor coils, and indicator lamps. Each of the sixteen outputs utilizes a solid-state Triac (TRIode for AC) switching element, providing reliable, fast, and silent operation without the moving parts and associated wear of electromechanical relays. The Allen-Bradley 1746-OW16/C/A​ is engineered to operate with both 120V AC and 240V AC systems, offering significant flexibility for global machine design and panel integration. Its primary value lies in providing a compact, high-point-count solution for controlling a large number of AC devices from a single slot in the SLC 500 chassis, optimizing cabinet space and system cost.As a key component in the versatile SLC 500 I/O family, the 1746-OW16/C/A​ module provides essential electrical isolation between the sensitive logic-level backplane of the PLC and the high-voltage AC field circuits. This isolation is critical for protecting the controller from voltage transients, noise, and potential faults present on the power lines. The module is designed to mount in any compatible 1746 series I/O chassis, where it communicates seamlessly with the processor. The “C” revision in the model number typically indicates a specific hardware version with enhanced features or compatibility. The Allen-Bradley 1746-OW16/C/A​ enables efficient control of distributed AC loads in applications ranging from machine automation and material handling to process control and building management, making it a fundamental building block for systems requiring reliable, multi-point AC switching under program control.