WAGO 750-400 Four-Channel Digital Input Module

The WAGO 750-400 Digital Input Module is a 2-channel 24V DC digital input device in the WAGO-I/O-SYSTEM 750 family that monitors input signals from field devices and transmits them to PLCs and control systems. It uses 1-Wire Connection wiring with Cage Clamp technology, mounts to a DIN rail, and provides integrated LED indicators for local status. Common applications include packaging machinery, conveyor systems, OEM automation equipment, and process control skids where proximity sensors, pushbuttons, limit switches, and other 24VDC devices are read as distributed Remote I/O. The module’s industrial thermoplastic housing and compatibility with the WAGO 750 Series I/O Systems make it a replacement option for 750-401, 750-402, or 750-430 when upgrading or expanding remote I/O.