WESTERN 1781-OA5S Relay Output Module

The Western Reserve Controls 1781-OA5S OAC5 Slim Output Module is a compact AC output relay module designed for PLC and industrial automation systems, commonly installed in PLC racks and industrial control panels to provide reliable AC output control for machine automation equipment. It handles 12-140 VAC output at up to 3 A, uses a 5 VDC input logic signal, and operates at 60 Hz, enabling straightforward interfacing between low-voltage control circuits and higher-voltage AC loads in process control installations requiring AC output switching. As part of the OAC5 family, the 1781-OA5S is listed for replacement with WESTERN 1771-OA Output Module, Opto 22 OAC5, and Western Reserve Controls 1781-OA5Q Output Module, making it a practical option for retrofit, maintenance, and upgrades in PLC and industrial automation environments.