{"product_id":"siemens-3rh1921-1fa22-sirius-auxiliary-contact-block-2no-2nc","title":"Siemens 3RH1921-1FA22","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eElevate the functionality and reliability of your industrial control systems with the Siemens 3RH1921-1FA22 SIRIUS Auxiliary Contact Block. This essential component is meticulously engineered to seamlessly integrate with SIRIUS contactor relays and power contactors, providing critical additional switching capabilities. Boasting a versatile 2 normally open (NO) and 2 normally closed (NC) contact configuration, it offers unparalleled flexibility for diverse control circuits. The innovative snap-on front mounting design ensures rapid, tool-free installation, minimizing downtime and maximizing operational efficiency. Designed for robust performance in demanding industrial environments, the 3RH1921-1FA22 maintains the high standards of quality and engineering excellence synonymous with the Siemens brand. Please be aware that this specific model has been discontinued, and securing available stock is recommended for those seeking this reliable solution.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Contact Configuration:\u003c\/strong\u003e Equipped with 2 Normally Open (NO) and 2 Normally Closed (NC) contacts, providing comprehensive control options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffortless Snap-on Mounting:\u003c\/strong\u003e Designed for quick and easy snap-on front mounting, eliminating the need for specialized tools and reducing installation time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Compatibility:\u003c\/strong\u003e Perfectly suited for integration with Siemens SIRIUS contactor relays and power contactors, ensuring optimal system performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built to withstand rigorous industrial conditions with a robust design and adherence to high-quality manufacturing standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced System Control:\u003c\/strong\u003e Expands the control capabilities of your existing contactors, offering greater flexibility in circuit design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace-Saving Design:\u003c\/strong\u003e Compact dimensions (44 mm x 38 mm x 51 mm) allow for efficient use of panel space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Performance:\u003c\/strong\u003e Offers a mechanical service life of approximately 10 million switching cycles, ensuring long-term operational dependability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Auxiliary Contact Block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3RH1921-1FA22\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e SIRIUS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration:\u003c\/strong\u003e 2 NO + 2 NC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Contacts:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Method:\u003c\/strong\u003e Snap-on front mounting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W x H x D):\u003c\/strong\u003e 44 mm x 38 mm x 51 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Service Life:\u003c\/strong\u003e Approximately 10 million switching cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Endurance at AC-15 (230 V):\u003c\/strong\u003e Approximately 200,000 switching cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e -25°C to +60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature Range:\u003c\/strong\u003e -55°C to +80°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Class:\u003c\/strong\u003e IP20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e DIN EN 50005, IEC 60947-5-1\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Control Circuits:\u003c\/strong\u003e Essential for signaling and interlocking functions in various motor starting and stopping applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Automation Systems:\u003c\/strong\u003e Used in complex control panels to provide auxiliary contacts for relays, contactors, and other control devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Control:\u003c\/strong\u003e Integral for implementing safety interlocks and feedback loops in industrial process control systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHVAC Systems:\u003c\/strong\u003e Enhances the control logic in heating, ventilation, and air conditioning systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitchgear and Control Panels:\u003c\/strong\u003e Provides critical additional switching points for a wide range of electrical control applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachine Building:\u003c\/strong\u003e Utilized in manufacturing machinery for precise control and monitoring of operational sequences.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose This Model?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Siemens Quality:\u003c\/strong\u003e Benefit from the renowned reliability and engineering excellence of Siemens, a global leader in industrial automation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized for SIRIUS Systems:\u003c\/strong\u003e Specifically designed to integrate seamlessly with the SIRIUS range, ensuring perfect compatibility and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffortless Installation:\u003c\/strong\u003e The snap-on mounting feature dramatically simplifies installation, saving valuable time and labor costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Control Options:\u003c\/strong\u003e The 2 NO + 2 NC contact configuration provides robust flexibility for intricate control circuit designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and Efficient:\u003c\/strong\u003e Its small footprint allows for efficient utilization of space within control cabinets, critical in crowded industrial environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable for Demanding Environments:\u003c\/strong\u003e Built to last with a high mechanical service life and a wide operating temperature range, ensuring consistent performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOrder Now\u003c\/h2\u003e\n\u003cp\u003eDon't miss the opportunity to acquire the reliable Siemens SIRIUS Auxiliary Contact Block 3RH1921-1FA22. As this model has been discontinued, we encourage you to secure your units from our remaining stock to ensure the continued robust functionality of your control systems. Experience the proven quality and performance that only Siemens can deliver. Add to cart now!\u003c\/p\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":45187853615157,"sku":"3RH1921-1FA22","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/7263\/6213\/files\/3RH1921-1FA22.webp?v=1777526671","url":"https:\/\/djer6s-ji.myshopify.com\/products\/siemens-3rh1921-1fa22-sirius-auxiliary-contact-block-2no-2nc","provider":"PLCReadyparts","version":"1.0","type":"link"}