Siemens 3RK31211AC00

The Siemens 3RK31211AC00 is a central unit designed for modular safety systems, specifically within the SIRIUS product line. This model supports the AS-Interface (ASi) protocol, providing reliable monitoring of ASi slaves and control over eight safe outputs on the AS-Interface bus. It operates at 24 V DC and features six digital inputs, one relay output, and one digital output, all accessible via screw terminals. The unit is compact with a 45 mm width and can be configured using Safety ES software, allowing it to meet safety integrity levels up to SIL3. Distributed by BSP Automation, this central unit offers a robust solution for integrating safety functions in automated systems.