Siemens 24V dc Safety Relay with Configurable 3SK1 Series Advanced SIRIUS 3SK1122-1CB41

Siemens 3SK1122-1CB41 is a 24V dc Safety Relay from the SIRIUS 3SK1 Advanced series, offering configurable safety functions and high reliability for industrial automation and electrical safety applications. This relay is engineered for use in emergency off and emergency stop monitoring, protective door monitoring with electromechanical or solid state position switches, and contact-free protection devices such as light barriers or laser scanners.

The relay comprises basic devices with input and output expansions connectable via a 3ZY12 device connector, ensuring flexibility and expandability. The control supply voltages range from 110 to 240 Vac/dc, and the required 24 Vdc voltage can be supplied from a dedicated power unit positioned in the system.

Functional features include a 4-way DIP switch for precise parameterization, 4 LEDs providing clear status and function feedback, and a Set / Reset button that enables loading of function settings and device restarts. Upon commissioning, the device runs a self-test, continuously monitoring internal electronics and firmware for fault detection during operation. The semiconductor outputs undergo a dynamic dark test lasting up to 2 ms to verify correct function.

The relay integrates 2 sensor inputs, plus inputs for cascading and start pushbutton circuits, with NO and NC contact evaluation adjustable via an external jumper. Connections are made via secure removable screw terminals. Built for robust operation, the relay supports operating temperatures from -25°C up to 60°C, and bears an IP20 ingress protection rating.

Additional technical data includes a safety category 4 rating, RoHS compliance, and compact dimensions of 122 mm height, 100 mm length, and 22.5 mm width. Manufactured in Germany, this safety relay ensures premium quality and industrial-grade performance.

The Siemens 3SK1122-1CB41 model is particularly suited for applications requiring high safety standards in industrial, laboratory, manufacturing, and electrical automation environments. It allows flexible system expansions with input and output modules, providing tailored safety solutions.

The relay features a 4-way DIP switch for function setting and 4 LEDs for status and function display. Includes a Set / Reset button for loading function settings and performing device restarts. Offers 2 sensor inputs and dedicated inputs for cascading and start pushbutton circuits.

Supports NO and NC contact evaluation via an external jumper for versatile control. The relay uses removable screw terminals for secure electrical connections. Operates reliably in temperatures from -25°C to 60°C with IP20 protection rating.

Designed with safety category 4 compliance and RoHS certification. Compact dimensions of 122 mm height, 100 mm length, and 22.5 mm width. Manufactured in Germany for high-quality industrial performance. Ideal for emergency off/stop monitoring and protective door safety applications.

Compatible with input and output expansions via 3ZY12 device connector for system scalability. Explore a broad portfolio of high-quality industrial relays and components at EnvMart for enhanced safety and efficiency in your projects.

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