Description
The Siemens 3SK1122-1CB42 is a high-performance SIRIUS 3SK1 series safety relay designed for advanced safety applications. This Advanced Basic Unit features semiconductor (solid-state) outputs and a time delay function (0.5-30 s), making it ideal for complex safety systems requiring precise control. It is part of the SIRIUS modular system, allowing for easy expansion of inputs and outputs using device connectors. This unit is designed to meet high safety standards, including SIL 3 and PL e / Cat. 4, ensuring reliable protection in industrial environments. The model is configured with screw-type terminals for secure and robust connections.
Key Features
- Advanced Basic Unit with semiconductor (solid-state) outputs
- Time Delay: Configurable delay of 0.5 to 30 seconds
- Outputs: 3 safety-related semiconductor outputs, 1 semiconductor signaling circuit
- Terminal Type: Screw-type terminal (x=1 in MLFB)
- Safety Standards: Compliant with ISO 13849-1 (PL e, Cat. 4) and IEC 62061 (SILCL 3)
- Modularity: Expandable with input/output expansion modules using device connectors
- Country of Origin: Germany
Technical Specifications
Parameter | Specification |
|---|---|
Article Number (MLFB) | 3SK1122-1CB42 |
Supply Voltage (Us) | 24 V DC |
Output Type | Semiconductor (Solid-State) |
Safety-Related Outputs | 3 |
Signaling Circuit | 1 (Semiconductor) |
Time Delay Range | 0.5 – 30 s |
Terminal Type | Screw-type |
Protection Class | IP20 |
Operating Temperature | -25 °C to +60 °C |
Mounting Width | 22.5 mm |
Mounting Depth | 121.6 mm |
Approvals | CE, UL, CSA |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Technical support for configuration and installation
- Wiring and parameter setting assistance
- Compatibility verification with existing safety systems
- Commissioning and diagnostics support available
Delivery Time
- Standard delivery: 3-5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens components
- Global supply network with competitive pricing
- Expertise in industrial safety and automation systems
- Comprehensive technical documentation
- Responsive customer service and support
Applications
- Emergency Stop Systems: Monitoring emergency stop buttons and safety switches
- Safety Gates: Monitoring guard doors and access points
- Light Curtains: Evaluating safety light curtains and laser scanners
- Two-Hand Controls: Ensuring operator safety in hazardous machinery
- Complex Safety Logic: Implementing safety functions with time delays and feedback monitoring
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