{"product_id":"siemens-3rh1921-1ha22","title":"3RH1921-1HA22","description":"\u003ch2\u003eOverview of Siemens 3RH1921-1HA22\u003c\/h2\u003e\n\u003cp\u003eBuy genuine Siemens 3RH1921-1HA22 online today to enhance your industrial automation setup with reliable auxiliary contact technology. The Siemens 3RH1921-1HA22 is a front-mounted auxiliary switch block designed specifically for use with Siemens 3RT1 Size S0 to S3 motor contactors. This accessory features four poles, with 2 normally open (NO) and 2 normally closed (NC) contacts, making it ideal for expanding switching capabilities in control circuits. Its easy snap-on installation onto contactors allows tool-less mounting and removal, ensuring quick integration and maintenance. Backed by Siemens’ renowned quality, this auxiliary contact block meets IEC 60947 standards and supports operation in demanding environments with an IP20 protection class and ambient temperature range from -25 to +60°C. It’s a trusted choice for enhancing contactor functionality in various industrial applications.\u003c\/p\u003e\n\u003ch2\u003eKey Features of Siemens 3RH1921-1HA22\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAuxiliary switch block with 2 normally open and 2 normally closed contacts\u003c\/li\u003e\n  \u003cli\u003eCompatible with Siemens 3RT1 Size S0-S3 motor contactors\u003c\/li\u003e\n  \u003cli\u003eTool-less snap-on front mounting for easy installation and removal\u003c\/li\u003e\n  \u003cli\u003eIEC 60947 compliant for industrial use and reliability\u003c\/li\u003e\n  \u003cli\u003eElectrical endurance of 200,000 switching cycles at AC-15, 230 V\u003c\/li\u003e\n  \u003cli\u003eMechanical service life of approximately 10 million switching cycles\u003c\/li\u003e\n  \u003cli\u003eRated insulation voltage up to 690 V and surge voltage resistance of 6 kV\u003c\/li\u003e\n  \u003cli\u003eScrew terminal connections for secure wiring\u003c\/li\u003e\n  \u003cli\u003eIP20 protection class suitable for standard industrial environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specs of 3RH1921-1HA22\u003c\/h2\u003e\n\u003cp\u003eRefer to Siemens 3RH1921-1HA22 datasheet for detailed parameters to ensure system compatibility.\u003c\/p\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eContact Configuration\u003c\/td\u003e\n\u003ctd\u003e2 NO + 2 NC, 4-pole\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eFront snap-on\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eScrew Terminals\u003c\/td\u003e\n\u003ctd\u003eYes\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\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-25 to +60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\u003cp\u003eThis Siemens 3RH1921-1HA22 is commonly used in industrial automation environments to extend control and signaling functions in motor control circuits. It is especially useful in production line systems, packaging and conveyor operations, and factory control panels where reliable auxiliary contact feedback is required to monitor contactor states or trigger secondary control functions. Its compatibility with Siemens 3RT1 contactors makes it a versatile and essential component for machine automation and process control setups worldwide.\u003c\/p\u003e\n\u003ch2\u003ePrice \u0026amp; Availability\u003c\/h2\u003e\n\u003cp\u003eCheck Siemens 3RH1921-1HA22 price online 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, sourced from verified suppliers, and available for worldwide shipping. Order now for worldwide delivery to ensure you receive factory-tested Siemens automation parts with manufacturer warranty and support.\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-tia-portal-io-errors\"\u003eSiemens TIA Portal I\/O Errors\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\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":47796486963499,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/68._siemens-3rh1921-1ha22_00d39dbc-f247-4df4-a333-19b84ef2e039.jpg?v=1775058526","url":"https:\/\/leadtime.ca\/products\/siemens-3rh1921-1ha22","provider":"LEADTIME","version":"1.0","type":"link"}