Allen-Bradley 1771-0A AC Output Module

Allen-Bradley 1771-0A AC Output Module is an eight‑channel, 120 V AC output module designed for the 1771 I/O family used in PLC‑5/1771 Universal I/O systems. The Series B 1771 OA module provides eight output points that are addressable in 1/2‑slot increments within 1771 chassis A and B, enabling compact backplane configurations. It is intended for switching AC loads such as relays and motor starters, with each output rated to handle up to 1.5 A, making it suitable for common panel components in industrial control applications. The module occupies half a slot on the backplane and integrates with standard 1771 I/O layouts, preserving space in PLC‑5 installations.