Allen-Bradley 1746-IM16 16-Channel Input Module

The Allen-Bradley 1746-IM16 is a 16-channel AC input module for the SLC 500 programmable logic controller family (Series B). It accepts 170–265 VAC input signals and converts each channel into a discrete input for the controller, enabling direct wiring of field devices such as pushbuttons, limit switches, and other AC-powered sensors to the SLC‑500 backplane. This single-slot module is designed for use within the SLC-500 I/O system and supports standard 50/60 Hz mains operation, making it a practical choice for industrial environments that rely on mains-voltage signaling. Cataloged as 1746-IM16, it is a legacy SLC-500 I/O option that remains compatible with existing Allen-Bradley control architectures and wiring schemes.