Siemens SIRIUS 3RK3 ASIsafe Extended Central Unit
Siemens SIRIUS 3RK3 ASIsafe Extended Central Unit for safety systems.
The Siemens SIRIUS 3RK3122-1AC00 is an ASIsafe Extended central unit for a modular safety system, designed to monitor and control safety functions in industrial environments. It features 2x safe digital inputs (F-DI), 4x digital inputs (DI), 1x safe relay output (F-RO), and 1x safe digital output (F-DO). This unit operates on 24V DC and is capable of controlling up to 10 safe outputs on the AS-Interface bus, with configuration via Safety ES software.
This safety system component is crucial for applications requiring high safety integrity, such as emergency stop circuits, light curtains, and two-hand controls. It is widely used in machine building, automotive manufacturing, and packaging industries to ensure operator safety and compliance with safety standards like IEC 61508 up to SIL 3 and ISO 13849-1 up to Performance Level E. Up to two expansion modules can be connected.
Stanlo Automation, your trusted veteran-owned source for surplus industrial automation parts, offers the Siemens 3RK3122-1AC00. Secure reliable safety components for your critical systems and benefit from our expertise and commitment to quality.
| Type | ASIsafe Extended Central Unit |
| Series | SIRIUS 3RK3 |
| F-DI | 2 |
| DI | 4 |
| F-RO | 1 |
| F-DO | 1 |
| Control | Up to 10 safe outputs on AS-i bus |
| Voltage | 24V DC |
| Safety Rating | SIL 3 (IEC 61508), PL E (ISO 13849-1) |
| Width | 45 mm |
| Terminals | Screw |