Allen-Bradley 1746-0A16 SLC 500 Output Module

The Allen-Bradley 1746-OA16 SLC 500 Output Module is a 16-channel AC output module designed for use with SLC 500 controllers to switch 120/240 V AC loads in automation panels. Each of the 16 outputs is rated for 85–265 VAC operation, enabling direct control of devices such as relays and contactors from the PLC without external interface circuitry. The OA16 supports a per-channel load current around 370 mA, and it is part of the 1746 SLC I/O family, sharing mounting, wiring, and field connections with other SLC modules. Isolation between field circuits and the controller is up to 500 V DC, providing protection from transients and ensuring safer operation when switching AC loads; install this module in a 1746 I/O rack to extend an existing SLC 500 system. This module's compact form and familiar wiring conventions simplify ladder logic design and panel layout for engineers upgrading legacy 1746-based automation projects.