Allen-Bradley 1771-OA is an eight-channel 120V AC output module for the PLC-5 system, used to switch AC loads from the controller. It delivers a nominal 120 VAC output across eight discrete outputs, with an operating voltage range of about 95–132 VAC and 47–63 Hz. Each output channel is rated for up to 1.5 A continuous current, enabling direct control of devices such as motor starters, relays, or other 120 VAC loads. As part of the 1771 I/O family, the 1771-OA provides compatible, factory-backed performance for PLC-5 installations requiring reliable AC switching.
