Allen-Bradley 1492-IFM20F-3 Digital Input Breakout Module

Allen-Bradley 1492-IFM20F-3 Digital Input Breakout Module is a 20‑channel feed‑through digital interface for the 1492 I/O wiring system, providing direct breakout of 20 field inputs to a backplane. It accepts 0 to 132 V AC or DC signals and is designed for three‑wire sensor inputs, enabling three‑wire devices such as proximity sensors and other discrete sensors to be wired with a common return through the module. The device dimensions are about 4.33 in (L) × 3.27 in (W) × 2.78 in (H) and it weighs roughly 1.2 lb, making it compact for panel mounting. As a digital interface module, it is intended to simplify wiring by consolidating 20 input terminations in a single breakout block, compatible with Allen-Bradley’s 1492 family backplanes and wiring configurations. Typical applications include industrial automation lines and machine controls where multiple three‑wire sensors must be monitored with a centralized controller, such as packaging, assembly, and manufacturing equipment. When wiring, ensure that the input voltage remains within the specified 0–132 V AC/DC range and follow safe electrical practices for control wiring. The 1492‑IFM20F‑3 is part of the 1492 Digital Interface Modules family, offering reliable, centralized input connectivity with straightforward field wiring, reducing panel wiring complexity and supporting scalable sensor networks.