B&R X20DC4395 Direct Current Digital Input Module

B&R X20DC4395 Direct Current Digital Input Module is a digital I/O module for the X20 system that reads 24 V DC field signals from sensors and switches. It plugs into the X20 bus backplane and is configured in Automation Studio as part of an X20 I/O configuration, enabling precise, deterministic input polling within an industrial control rack. The module provides digital input channels compatible with 24 V DC logic and is designed for rugged, factory-floor environments, with integration into the X20 PowerLink bus for synchronized operation alongside other X20 modules. Common applications include reading door and safety interlock switches, limit switches, conveyor sensors, and other discrete sensors on automated machinery. When used in a multi-module X20 rack, the X20DC4395 supports coherent timing and data exchange with neighboring I/O, controllers, and field devices, contributing to reliable state monitoring and event triggering in real-time control tasks. The product is labeled as rev I0, reflecting its hardware revision, and it belongs to BR’s X20 DC-focused module family, intended for 24 V DC automation systems and seamless integration with BR Automation Studio workflows.