Allen-Bradley 1746-IM16 Input Module

The Allen-Bradley 1746-IM16 is a 16-channel AC input module for the SLC 500 PLC family that converts 170–265 V AC field signals into discrete digital inputs for the controller. It mounts on the 1746 I/O backplane and carries catalog 1746-IM16, offering 16 AC input points designed for 47–63 Hz operation to accommodate 200/240 V AC sensors and switches wired to the PLC bus. Key electrical specs include an input voltage range of 170–265 VAC, a nominal input current of about 12 mA per channel at 120 VAC, a maximum off-state current of 2 mA, and an off-state voltage limit of 30 V AC; inrush current can reach 0.8 A for up to 0.5 ms, with a signal delay of approximately 35 ms when ON and 45 ms when OFF. Storage temperature ranges from -40°C to +85°C.