Siemens SIRIUS 3RK3 Advanced Safety System Central Unit
Siemens SIRIUS 3RK3 Advanced Central Unit for modular safety systems.
The Siemens SIRIUS 3RK3131-2AC10 is an Advanced Central Unit for the modular 3RK3 safety system. It features 4/8 Fail-safe Digital Inputs (F-DI), 1 Fail-safe Relay Output (F-RO), and 1 Fail-safe Digital Output (F-DO), operating on 24V DC. This unit is designed for monitoring AS-i devices and controlling up to 12 safe outputs on the AS-Interface bus.
This central unit is parameterizable using Safety ES software and boasts a 45 mm width with spring-loaded terminals. It achieves up to SIL 3 (IEC 61508) and Performance Level E (ISO 13849-1), supporting up to 9 expansion modules. It's ideal for complex safety applications requiring high reliability and configurability.
Source your Siemens SIRIUS 3RK3 Advanced Central Unit 3RK3131-2AC10 from Stanlo Automation. As a veteran-owned surplus parts distributor, we provide essential safety components for your industrial automation needs.
| Inputs | 4/8 F-DI |
| Outputs | 1 F-RO, 1 F-DO |
| Voltage | 24V DC |
| Safety Level | SIL 3 (IEC 61508), PL E (ISO 13849-1) |
| Width | 45 mm |
| Terminals | Spring-loaded |
| Expansion Modules | Up to 9 connectable |