
Siemens 3SK1121-1CB42 safety relay module
Product Description The Siemens 3SK1121-1CB42 is a safety relay module from the SIRIUS 3SK1 series, designed for use in industrial safety applications. It ensures reliable monitoring and control of safety circuits, making it ideal for emergency stop functions, safety doors, and other protective applications. Key Features & Specifications: Product Type: Safety Relay Series: Siemens SIRIUS 3SK1 Operating Voltage: 24V DC Safety Outputs: 3 NO (normally open) contacts Auxiliary Outputs: 1 NC (normally closed) contact Operating Mode: Single and dual-channel control Response Time: < 10ms Mounting Type: DIN rail mount Housing Material: Durable plastic enclosure Protection Rating: IP20 (for panel installation) Certifications: CE, UL, cUL, TÜV approved Applications: Emergency Stop Circuits: Ensures safe shutdown in hazardous conditions Safety Doors & Guard Monitoring: Prevents machinery from operating when doors are open Two-Hand Control Systems: Ensures ope