Weidmüller UR20-4RO-CO-255 Relay Output Module

The Weidmüller UR20-4RO-CO-255 is a 4-channel relay output module for PLC-based remote I/O systems, delivering four relay contact outputs for digital control in distributed automation networks. It is designed for DIN-rail mounting in industrial cabinets and control panels, enabling remote output switching in factory automation equipment, conveyor systems, packaging machinery, and process manufacturing lines. Part of the u-remote UR20 family, this remote I/O module provides four relay outputs compatible with PLCs, HMIs, and other industrial controllers via a remote I/O fieldbus connection for modular decentralized automation control. The device supports standard relay contact outputs, making it suitable for actuation of signals or loads in distributed I/O architectures. It is intended for use in environments requiring remote I/O expansion or replacement of failed remote I/O modules, and is commonly installed in distributed control systems across factory and process environments. Common replacements in the market include the Siemens ET200 Relay Output Module, reflecting its position in distributed I/O ecosystems. Compatible equipment includes PLCs, HMIs, and industrial controllers, with mounting on a DIN rail for straightforward integration into industrial automation cabinets and control panels.