{"product_id":"siemens-3sk1121-2cb41","title":"3SK1121-2CB41","description":"\u003ch2\u003eBuy genuine Siemens 3SK1121-2CB41 online\u003c\/h2\u003e\n\u003cp\u003eThe Siemens 3SK1121-2CB41 is a high-quality SIRIUS safety relay designed for autonomous safety applications, offering reliable performance and advanced safety features. This industrial-grade relay provides 2 normally open (NO) instantaneous and 2 NO delayed relay circuits with a time delay adjustable from 0.05 to 3 seconds, operating on a 24V DC supply. Engineered to meet stringent safety standards like IEC 61508 and EN ISO 13849-1, the 3SK1121-2CB41 ensures enhanced protection for machinery and operators by monitoring safety circuits reliably. Its compact design, finger-safe protection (IP20), and spring-loaded terminals allow straightforward installation and secure wiring, making it ideal for factory control panels and safety systems integration.\u003c\/p\u003e\n\u003ch2\u003eKey Features of Siemens 3SK1121-2CB41\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e2 NO instantaneous and 2 NO delayed contacts with adjustable OFF-delay from 0.05 to 3 seconds\u003c\/li\u003e\n  \u003cli\u003e24V DC rated control supply voltage with operating range of 0.8 to 1.2 times rated voltage\u003c\/li\u003e\n  \u003cli\u003eCompact dimensions: 22.5 mm x 100 mm x 121.6 mm suitable for space-constrained control panels\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded terminals for reliable and easy wiring\u003c\/li\u003e\n  \u003cli\u003eFinger-safe design and IP20 enclosure rating for operator protection\u003c\/li\u003e\n  \u003cli\u003eComplies with international safety standards including IEC 61508, EN ISO 13849-1, UL Listed, and CE Certified\u003c\/li\u003e\n  \u003cli\u003eSupports long wire length sensor connections up to 4000 meters with Cu 1.5 mm² cables\u003c\/li\u003e\n  \u003cli\u003eResistant to vibration and shock per IEC 60068-2-6 and shock testing requirements\u003c\/li\u003e\n  \u003cli\u003eIncludes backslide delay and recovery times ensuring reliable safety circuit response\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eExplore Siemens 3SK1121-2CB41 specifications covering voltage, I\/O, and communication\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eParameter\u003c\/th\u003e\n    \u003cth\u003eSpecification\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eControl Supply Voltage\u003c\/td\u003e\n    \u003ctd\u003e24 V DC (0.8…1.2 x rated)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eRelay Outputs\u003c\/td\u003e\n    \u003ctd\u003e2 NO instantaneous + 2 NO delayed\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eTime Delay\u003c\/td\u003e\n    \u003ctd\u003eAdjustable 0.05 to 3 seconds\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eEnclosure Protection\u003c\/td\u003e\n    \u003ctd\u003eIP20\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n    \u003ctd\u003e22.5 mm x 100 mm x 121.6 mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eOperating Temp.\u003c\/td\u003e\n    \u003ctd\u003e-25 to +60 °C\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eStandards\u003c\/td\u003e\n    \u003ctd\u003eIEC 61508, EN ISO 13849-1, UL, CE\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\u003cp\u003eThis Siemens 3SK1121-2CB41 is commonly used in industrial automation systems worldwide where safe machine operation is critical. It is ideal for applications requiring time-delayed safety functions like two-hand control devices, enabling safe start-up sequences or ensuring machinery stops safely during faults. Commonly integrated into factory control panels, process control systems, packaging lines, and production machines, it helps companies comply with safety regulations and maintain operational reliability.\u003c\/p\u003e\n\u003ch2\u003eSee Siemens 3SK1121-2CB41 price and availability through LeadTime.ca for fast worldwide dispatch\u003c\/h2\u003e\n\u003ch2\u003eWhy Order from LeadTime.ca\u003c\/h2\u003e\n\u003cp\u003eAll product on LeadTime.ca is genuine OEM, supplied by trusted distributors, and ready for international delivery. Order now for worldwide delivery.\u003c\/p\u003e\n\u003ch2\u003eRelated Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/\"\u003eLeadTime.ca – Industrial Automation Components \u0026amp; Repair Services\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/collections\/siemens\"\u003eBrowse Siemens PLCs, Drives \u0026amp; Automation Parts\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-plc-programming-basics\"\u003eSiemens PLC programming basics\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-profibus-configuration\"\u003eGuide to Siemens Profibus configuration\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/recover-siemens-plc-hmi-programs\"\u003eHow to recover Siemens PLC and HMI programs\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":47796391248171,"sku":null,"price":308.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_b87beeed-8af9-4ca7-867f-bf1926ef29c4.png?v=1723551181","url":"https:\/\/leadtime.ca\/products\/siemens-3sk1121-2cb41","provider":"LEADTIME","version":"1.0","type":"link"}