WAGO 750-400 Digital Input Module

The WAGO 750-400 Digital Input Module is a two-channel digital input module in the WAGO‑I/O‑SYSTEM 750 family that collects discrete signals from field devices and transmits them to a PLC or control system. It is designed for DIN rail mounting and uses Cage Clamp wiring with a 1‑Wire connection for each input, and it operates on 24V DC signals. The module is commonly used in packaging equipment, conveyor lines, process skids, OEM machinery, and factory control panels where reliable digital signal monitoring and remote I/O communication are required. It supports monitoring of pushbuttons, limit switches, proximity sensors, safety interlocks, and other field contact devices in distributed remote I/O applications such as conveyor automation, packaging lines, assembly equipment, and material handling systems. Features include integrated LED indicators for input status and an industrial thermoplastic housing suitable for harsh industrial environments. Compatible with the 750 Series I/O Systems and commonly replaced by 750-401, 750-402, or 750-430 models for expansion or upgrade.