Siemens 3RK3221-2AA10 SIRIUS Expansion Module
Siemens 3RK3221-2AA10 SIRIUS safety expansion module with F-DI and F-RO.
The Siemens 3RK3221-2AA10 is a SIRIUS expansion module designed for the modular safety system 3RK3. It offers configurable safety functions, including 2 or 4 fail-safe digital inputs (F-DI) and 1 or 2 fail-safe relay outputs (F-RO). The module operates at 24 V DC with a current rating of 1 A for its outputs. It is configurable via the Siemens MSS ES software and features spring-loaded terminals. This module achieves up to SIL 3 (IEC 61508) and Performance Level e (ISO 13849-1), ensuring high safety integrity.
This expansion module is crucial for building custom safety solutions in machinery and industrial plants where precise and reliable safety functions are paramount. It is used in applications requiring emergency stops, safety gates, light curtains, and other safety-related controls, meeting stringent safety standards across various industries.
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| Series | SIRIUS 3RK32 |
| Type | Expansion Module |
| Inputs | 2/4 F-DI |
| Outputs | 1/2 F-RO |
| Voltage | 24 V DC |
| Current | 1 A |
| Safety Level | SIL 3 (IEC 61508), PL e (ISO 13849-1) |
| Terminals | Spring-loaded |
| Width | 22.5 mm |