Allen-Bradley 1492-IFM20F-F120-2 Fusible Module

The Allen-Bradley 1492-IFM20F-F120-2 is a 20-point fusible digital interface module (IFM) for the 1492 wiring system, designed to connect digital field devices to a PLC while providing per-channel fuse protection and clear fault indication. It uses 5 × 20 mm fuse clips and is rated for 120 V AC/DC operation, with blown-fuse indicators that help pinpoint which inputs have failed. The module offers isolated digital I/O with additional output terminals available for expansion, making it suitable for panel installations that require discrete protection and straightforward fault diagnosis. Typical applications include wiring pushbuttons, limit switches, and other digital sensors to Allen-Bradley PLCs in automation, process control, and machine safety circuits, where reliable fuse-protected inputs enhance safety and ease of maintenance.