Allen-Bradley 1771-OA AC Output Module 120 VAC

Allen-Bradley 1771-OA AC Output Module delivers eight discrete 120 VAC outputs for PLC-5 control of line-voltage loads. Designed for the 1771 I/O backplane, it provides nominal 120 VAC output with a voltage range of 95–132 VAC and an operating frequency of 47–63 Hz. Each of the eight outputs supports up to 1.5 A continuous current, with a surge capability of 4 A per output for 8.3 ms (repeatable every 1 second) to handle startup transients. This module is used to directly drive AC loads such as motor starters, relays, or solenoids, enabling PLC-5 logic to switch mains-voltage devices without external relays. Typical applications include automation panels, conveyors, and other equipment requiring eight independent AC switching points at mains voltage.