Allen-Bradley 1492-IFM40F-FS24-4 Programmable Logic Controller Module

The Allen-Bradley 1492-IFM40F-FS24-4 is a 40-point isolated fusible digital interface module (IFM) in the 1492 Wiring System, designing protected digital I/O expansion for Rockwell Automation PLC systems. It uses a fixed 40-pin field connector and a 5 x 20 mm fuse clip arrangement to provide individual fuse protection for each output, with four field terminals per output for wiring sensors or actuators. This 24V AC/DC variant includes blown-fuse indicators for quick fault diagnosis and is DIN-rail mountable for convenient panel integration. The module connects to PLC I/O modules through pre-wired, pre-tested cables in the 1492 family (such as 1492-CABLExY), enabling seamless interfacing with Controller modules like 1756 ControlLogix I/O (e.g., OB16D) in compatible configurations. By combining isolated fusible protection with a 40-point digital interface, it supports reliable, traceable wiring for industrial digital I/O applications.