Allen-Bradley 1746-OV16 16-Point Output Module

The Allen-Bradley 1746-OV16 is a 16-point digital DC output module for the SLC 500 family that provides sinking (current-sinking) outputs to drive DC loads from a +24 VDC supply. Designed for use on a 1746 backplane with SLC 500 controllers, the module accepts an operating range of 10 to 50 V DC on its outputs with a nominal supply of 24 V DC. Each of the 16 outputs is an independent transistor that sinks load current to a common return when commanded by the PLC, suitable for energizing DC coils, relays, lights, and other low-power DC devices. Electrical characteristics include an off-state leakage current up to 1 mA per channel and an on-state voltage drop around 1.2 V at approximately 0.5 A, with surge capability up to 3 A for 10 ms per point. The OV16 module is commonly used in automation projects requiring reliable, discrete control of multiple DC devices from an SLC 500 processor, and is typically installed alongside other 1746-series I/O modules to form a complete control rack.