Allen-Bradley 1746-IM16 16-Channel Analog Input Module

The 1746-IM16 is a 16-channel AC digital input module for Allen-Bradley SLC-500 controllers, designed to read 170–265 VAC field signals. In a single 1746 I/O module, it provides sixteen input points for monitoring line-voltage devices such as pushbuttons, switches, and other AC-sourced sensors in industrial automation. Electrical specs include an input voltage range of 170–265 VAC with 47–63 Hz operation; off-state voltage up to 30 VAC and off-state current up to 2 mA; input current of approximately 12 mA at 120 VAC (nominal); and an inrush current up to 0.8 A with a maximum duration of 0.5 ms. The module is rated for storage from -40°C to +85°C and is designed for use with the SLC 500 backplane in 1746 I/O racks, enabling timely capture of input transitions by the PLC processor. This 1746-IM16 is part of Allen-Bradley’s 1746 I/O lineup and provides direct, line-voltage digital inputs that feed the processor’s input image for synchronous logic operations and reliable, field-level signaling.