{"product_id":"siemens-3rv2021-4na15","title":"3RV2021-4NA15","description":"\u003ch2\u003eBuy genuine Siemens 3RV2021-4NA15 online\u003c\/h2\u003e\n\u003cp\u003eThe Siemens 3RV2021-4NA15 is a factory-grade motor protection circuit breaker designed to safeguard electric motors against overloads and short circuits. Featuring a Class 10 thermal magnetic trip unit, it offers reliable protection with adjustable current settings between 23 to 28 amps. This model belongs to the Siemens 3RV2 series and comes in the compact S0 frame size, ideal for various industrial applications. The 3-pole configuration and screw terminal electrical connections provide secure and convenient installations on DIN rails. Built to endure demanding industrial environments, the 3RV2021-4NA15 also includes integrated auxiliary contacts (NO + NC) for enhanced control and signaling capabilities. This motor protector is well-regarded for its robustness, ease of adjustment, and compatibility with motors up to 15 kW power rating at voltages ranging from 220 to 690V AC, making it a top choice for automation and motor control systems.\u003c\/p\u003e\n\u003ch2\u003eKey Features of Siemens 3RV2021-4NA15\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClass 10 thermal magnetic overload protection with adjustable range from 23 to 28 A\u003c\/li\u003e\n\u003cli\u003eSuitable for motors up to 15 kW power rating\u003c\/li\u003e\n\u003cli\u003eCompact S0 frame size for space-saving panel installation\u003c\/li\u003e\n\u003cli\u003e3-pole design with screw terminal electrical connections\u003c\/li\u003e\n\u003cli\u003eIntegrated auxiliary contacts (Normally Open + Normally Closed) for control integration\u003c\/li\u003e\n\u003cli\u003eDIN rail mounting for standard industrial setup\u003c\/li\u003e\n\u003cli\u003eShort circuit release rated at 364 A for reliable fault interruption\u003c\/li\u003e\n\u003cli\u003eOperating voltage range: 220 to 690V AC\u003c\/li\u003e\n\u003cli\u003eFront-mounted rotary dial for easy current setting adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eExplore Siemens 3RV2021-4NA15 datasheet for detailed parameters\u003c\/h2\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\u003eFrame Size\u003c\/td\u003e\n\u003ctd\u003eS0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Range\u003c\/td\u003e\n\u003ctd\u003e23–28 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Power Rating\u003c\/td\u003e\n\u003ctd\u003eUp to 15 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Poles\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e220–690 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort Circuit Release\u003c\/td\u003e\n\u003ctd\u003e364 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003eScrew terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\u003cp\u003eThis Siemens 3RV2021-4NA15 is commonly used in industrial automation where reliable motor protection is critical. It is ideal for machine automation, production line systems, and factory control panels requiring precise overload and short circuit protection. Its adjustable current settings and integrated auxiliary contacts make it suited to protect and monitor motors in conveyor systems, packaging machinery, and other motor-driven industrial equipment. Industries relying on stable motor function and safety often incorporate this model as part of their control systems to minimize downtime and prevent damage.\u003c\/p\u003e\n\u003ch2\u003ePrice \u0026amp; Availability\u003c\/h2\u003e\n\u003cp\u003eCheck Siemens 3RV2021-4NA15 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 authentic original OEM, 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-profibus-configuration\"\u003eSiemens Profibus configuration tutorial\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","brand":"Siemens","offers":[{"title":"Default Title","offer_id":47912589721899,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/3RV2021-4NA15.png?v=1707379383","url":"https:\/\/leadtime.ca\/products\/siemens-3rv2021-4na15","provider":"LEADTIME","version":"1.0","type":"link"}