Allen-Bradley 1746-OW16 16-Point Output Module

The Allen-Bradley 1746-OW16 is a 16-point relay output module for the SLC 500 family, delivering two banks of eight normally open relay contacts that mount in a 1746 backplane to be driven from a PLC program. It’s designed for discrete control of field devices such as solenoids, indicator lights, and small actuators in manufacturing and packaging lines, and it fits into 1746-series racks (examples include backplanes 1746-A4, A7, A10, and A13). The module presents 16 outputs in a compact 2×8 arrangement and uses relay contacts to provide isolation between the controller and the field wiring. Load voltage support is specified as 5 to 125 V DC and 5 to 265 V AC, enabling use with a broad range of DC and AC devices while preserving simple wiring and robust isolation between the PLC and controlled loads.