The Siemens 3RK3111-1AA10 is a central unit from the SIRIUS 3RK3 Modular Safety System, designed to provide flexible and scalable safety solutions in industrial automation environments. This basic module supports up to 8 safety-related inputs and 2 safety-related outputs, configurable via software, making it suitable for applications requiring high safety integrity levels.

Key Features:

Model: 3RK3111-1AA10
Brand: Siemens
Series: SIRIUS 3RK3 Modular Safety System
Function: Central Unit (Basic Module)
Safety Inputs: 4 to 8 (configurable)
Safety Outputs: 1 relay output (F-RO), 1 digital output (F-DO)
Rated Voltage: 24 V DC
Power Consumption: 4.5 W
Dimensions (W × H × D): 45 mm × 111 mm × 124 mm
Mounting: DIN rail with screw terminals
Protection Rating: IP20
Safety Standards Compliance:
- SIL 3 (IEC 61508)
- Performance Level e (ISO 13849-1)
Certifications: UL Listed, CSA Certified, CCC, EAC, RCM, C-Tick
Applications: Ideal for emergency stop circuits, protective door monitoring, two-hand control systems, and other safety-related functions in industrial automation.

Siemens - 3RK3111-1AA10 - SIRIUS Modular Safety System Central Unit, 8 Inputs