Allen-Bradley 1746-IA16U Analog Input Module 16 Channel

The Allen-Bradley 1746-IA16U is a 16-channel AC digital input module for the SLC 500 family, designed to convert field-line signals into a binary input stream for a 1746 backplane controller. Each channel accepts 85-132 VAC operation at 47-63 Hz, enabling direct interfacing with standard 120 V AC sensors, switches, and relays without external conditioning. The module provides 16 discrete input points with a common wiring scheme, simplifying installation and diagnostics in small to mid-size control panels. Typical applications include monitoring pushbuttons and start/stop signals, motor starter circuits, safety interlocks, and other line-voltage sensing tasks in legacy Allen-Bradley automation setups. Built to integrate with Allen-Bradley Rockwell Automation hardware, the 1746-IA16U extends the I/O capacity of SLC 500 systems by adding a compact 16-channel AC input block that slides into a 1746 I/O rack. For best results, verify your controller model, rack, and slot requirements to ensure proper compatibility and operation within the existing 1746 module ecosystem.