{"product_id":"siemens-3rh1921-2ca01","title":"3RH1921-2CA01","description":"\n\u003ch2\u003eOverview of Siemens 3RH1921-2CA01\u003c\/h2\u003e\n\u003cp\u003eBuy genuine Siemens 3RH1921-2CA01 online today for your automation system. This front-side auxiliary switch is a trusted solution for industrial control and contactor applications. Designed for use with Siemens 3RT1 contactors, the 3RH1921-2CA01 delivers reliable switching performance and long service life. Featuring a 1 NC (normally closed) contact and a spring-type terminal, this auxiliary switch is ideal for monitoring and controlling motor circuits, safety interlocks, and status indication in automation panels. With a mechanical service life of up to 10 million switching cycles and robust electrical endurance, the Siemens 3RH1921-2CA01 is engineered for demanding environments. Whether you need to buy 3RH1921-2CA01 for a new installation or replacement, this model is a factory-grade choice for industrial automation and control systems.\u003c\/p\u003e\n\u003ch2\u003eKey Features of Siemens 3RH1921-2CA01\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1-pole, 1 NC (normally closed) contact for reliable switching\u003c\/li\u003e\n\u003cli\u003eSpring-type terminal for secure and fast wiring\u003c\/li\u003e\n\u003cli\u003eCompatible with Siemens 3RT1 contactors\u003c\/li\u003e\n\u003cli\u003eHigh mechanical service life: up to 10 million cycles\u003c\/li\u003e\n\u003cli\u003eElectrical endurance: 200,000 cycles at AC-15, 230 V\u003c\/li\u003e\n\u003cli\u003eFront-side mounting for easy installation and access\u003c\/li\u003e\n\u003cli\u003eIP20 protection class for safe operation in control panels\u003c\/li\u003e\n\u003cli\u003eWide operating temperature range: -25°C to +60°C\u003c\/li\u003e\n\u003cli\u003eComplies with DIN EN50005 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specs of 3RH1921-2CA01\u003c\/h2\u003e\n\u003cp\u003eExplore 3RH1921-2CA01 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\u003e1 NC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current\u003c\/td\u003e\n\u003ctd\u003e10 A at 24\/230 VAC, 10 A at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Endurance\u003c\/td\u003e\n\u003ctd\u003e200,000 cycles (AC-15, 230 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Service Life\u003c\/td\u003e\n\u003ctd\u003e10,000,000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Voltage\u003c\/td\u003e\n\u003ctd\u003e690 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Voltage Resistance\u003c\/td\u003e\n\u003ctd\u003e6 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-25°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\u003cp\u003eThis Siemens 3RH1921-2CA01 is commonly used in industrial automation worldwide. It is ideal for monitoring contactor status, providing feedback signals, and enabling safety interlocks in control panels. The switch is widely applied in machine automation, production line systems, and factory control panels where reliable auxiliary contact switching is required. Its robust design and compatibility with Siemens 3RT1 contactors make it a preferred choice for engineers and maintenance teams in packaging and conveyor operations, motion control setups, and process control environments.\u003c\/p\u003e\n\u003ch2\u003ePrice \u0026amp; Availability\u003c\/h2\u003e\n\u003cp\u003eCheck 3RH1921-2CA01 price through LeadTime.ca for fast worldwide dispatch.\u003c\/p\u003e\n\u003ch2\u003eWhy Order from LeadTime.ca\u003c\/h2\u003e\n\u003cp\u003eAll 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\u003ca href=\"https:\/\/leadtime.ca\/\"\u003eLeadTime.ca – Industrial Automation Components \u0026amp; Repair Services\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/leadtime.ca\/collections\/siemens\"\u003eBrowse Siemens PLCs, Drives \u0026amp; Automation Parts\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-plc-programming-basics\"\u003eSiemens PLC Programming Basics Guide\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-tia-portal-io-errors\"\u003eTroubleshooting Siemens TIA Portal I\/O Errors\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-drive-parameter-setup\"\u003eSiemens Drive Parameter Setup Reference\u003c\/a\u003e\n","brand":"Siemens","offers":[{"title":"Default Title","offer_id":47796293435691,"sku":null,"price":4.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_727cd2c4-9115-4064-a90d-703aeb6cb853.png?v=1723552513","url":"https:\/\/leadtime.ca\/products\/siemens-3rh1921-2ca01","provider":"LEADTIME","version":"1.0","type":"link"}