{"product_id":"siemens-3rh1921-1ea11","title":"3RH1921-1EA11","description":"\n\u003ch2\u003eOverview of Siemens 3RH1921-1EA11\u003c\/h2\u003e\n\u003cp\u003eShop genuine Siemens 3RH1921-1EA11 auxiliary switch block online for your automation system. This industrial-grade component is designed for reliable performance in demanding environments. The Siemens 3RH1921-1EA11 is a laterally mounted auxiliary contact block featuring 1NO and 1NC contacts, making it ideal for use with Siemens Sirius 3RT1 contactors from sizes S0 to S12. With a robust mechanical service life of 10 million switching cycles and electrical endurance of 200,000 cycles at AC-15, this switch block ensures long-term reliability. It is widely used in industrial automation and control panels for switching motors and other critical applications. The 3RH1921-1EA11 is certified to multiple international standards, including CCC, CSA, UL, CE, and RoHS, ensuring compliance and safety in global installations.\u003c\/p\u003e\n\u003ch2\u003eKey Features of Siemens 3RH1921-1EA11\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1NO and 1NC auxiliary contacts for versatile control wiring\u003c\/li\u003e\n\u003cli\u003eLateral mounting for easy installation on S0-S12 contactors\u003c\/li\u003e\n\u003cli\u003e10 million mechanical and 200,000 electrical switching cycles\u003c\/li\u003e\n\u003cli\u003eRated for 24\/230 VAC and 24\/110\/220 VDC operation\u003c\/li\u003e\n\u003cli\u003eComplies with IEC 60947-5-1, EN 50005, and other international standards\u003c\/li\u003e\n\u003cli\u003eIP20 protection class for front-side safety\u003c\/li\u003e\n\u003cli\u003eOperating temperature range from -25°C to +60°C\u003c\/li\u003e\n\u003cli\u003eSimple screw terminal connection for secure wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specs of 3RH1921-1EA11\u003c\/h2\u003e\n\u003cp\u003eExplore Siemens 3RH1921-1EA11 specifications for detailed parameters before installation.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContacts\u003c\/td\u003e\n\u003ctd\u003e1NO + 1NC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eLateral\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContactor Compatibility\u003c\/td\u003e\n\u003ctd\u003eS0-S12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Voltage\u003c\/td\u003e\n\u003ctd\u003e500 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Voltage\u003c\/td\u003e\n\u003ctd\u003e6 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-55°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eIEC 60947-5-1, EN 50005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\u003cp\u003eThis Siemens 3RH1921-1EA11 is commonly used in industrial automation worldwide. It is ideal for factory control panels, machine automation, and production line systems where reliable auxiliary switching is required. The block is compatible with Siemens Sirius 3RT1 contactors and is suitable for motor control, process control, and other automation tasks. Its robust design and international certifications make it a trusted choice for engineers and technicians in diverse industries.\u003c\/p\u003e\n\u003ch2\u003ePrice \u0026amp; Availability\u003c\/h2\u003e\n\u003cp\u003eCheck 3RH1921-1EA11 price and availability online through LeadTime.ca for fast worldwide dispatch.\u003c\/p\u003e\n\u003ch2\u003eWhy Order from LeadTime.ca\u003c\/h2\u003e\n\u003cp\u003eEvery product on LeadTime.ca is genuine, supplied by trusted distributors, and available for worldwide shipping. 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 Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-tia-portal-io-errors\"\u003eSiemens TIA Portal IO Errors Troubleshooting\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-drive-parameter-setup\"\u003eSiemens Drive Parameter Setup Reference\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Siemens","offers":[{"title":"Default Title","offer_id":47796220985643,"sku":null,"price":11.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_79142a0f-55fe-4be6-9419-c9b3d4f3ed38.png?v=1723553390","url":"https:\/\/leadtime.ca\/products\/siemens-3rh1921-1ea11","provider":"LEADTIME","version":"1.0","type":"link"}