{"product_id":"3rv2021-4na40-siemens-circuit-breaker-size-s0-for-motor-protection","title":"3RV2021-4NA40 | Siemens Circuit Breaker Size S0 for Motor Protection","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp\u003eThe 3RV2021-4NA40 is a Siemens Size S0 circuit breaker for motor protection, offering reliable short-circuit and overload protection with Class 10 tripping. Designed for ring cable lug connections, it ensures dependable motor safeguarding under demanding industrial conditions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"height: 1019.95px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 116.713px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 22.3935%; text-align: left; height: 116.713px;\"\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003eCondition\u003c\/p\u003e\n\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 77.2761%; height: 116.713px;\"\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003eNew\/Never Used Surplus\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 67.65px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 22.3935%; text-align: left; height: 67.65px;\"\u003eBrand\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 77.2761%; height: 67.65px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003eSiemens\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 56.1375px;\"\u003e\n\u003cth style=\"width: 22.3935%; text-align: left; height: 56.1375px;\"\u003eCategory\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%; height: 56.1375px;\"\u003e\n\u003cdiv class=\"mt-1 md:mt-0 column-left basis-2\/4 divide-y divide-rad-gray-10 border-b-[0.0625rem] border-rad-gray-10 md:border-0\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem] md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"max-w-[8rem] break-words\"\u003e\u003cspan\u003eCircuit Breaker\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 45.3875px;\"\u003e\n\u003cth style=\"width: 22.3935%; text-align: left; height: 45.3875px;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%; height: 45.3875px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e3RV2021-4NA40\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 106.938px;\"\u003e\n\u003cth style=\"width: 22.3935%; text-align: left; height: 106.938px;\"\u003eSubcategory\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%; height: 106.938px;\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\u003cspan\u003eMolded Case Circuit Breaker\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 104.3px;\"\u003e\n\u003cth style=\"width: 22.3935%; text-align: left; height: 104.3px;\"\u003eSize\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%; height: 104.3px;\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003eS0\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 106.938px;\"\u003e\n\u003cth style=\"width: 22.3935%; text-align: left; height: 106.938px;\"\u003eOverload Trip Setting (A-Release)\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%; height: 106.938px;\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e23–28 A\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 22.3935%; text-align: left;\"\u003eShort-Circuit Trip Setting (N-Release)\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%;\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e364 A\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 106.938px;\"\u003e\n\u003cth style=\"width: 22.3935%; text-align: left; height: 106.938px;\"\u003eTripping Class\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%; height: 106.938px;\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003eClass 10\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 104.938px;\"\u003e\n\u003cth style=\"width: 22.3935%; text-align: left; height: 104.938px;\"\u003eConnection Type\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%; height: 104.938px;\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003eRing Cable Lug\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 106.938px;\"\u003e\n\u003cth style=\"width: 22.3935%; text-align: left; height: 106.938px;\"\u003eSwitching Capacity\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%; height: 106.938px;\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003eStandard\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 50.7875px;\"\u003e\n\u003cth style=\"width: 22.3935%; text-align: left; height: 50.7875px;\"\u003e\u003cspan\u003eDimensions (W x D x H)\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%; height: 50.7875px;\"\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003e49,00 x 102,00 x 102,00 MM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 46.2875px;\"\u003e\n\u003cth style=\"width: 22.3935%; text-align: left; height: 46.2875px;\"\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 77.2761%; height: 46.2875px;\"\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003e0,368 Kg\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003e3RV2021-4NA40\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp data-start=\"456\" data-end=\"823\" class=\"\"\u003eThe Siemens 3RV2021-4NA40 circuit breaker is engineered for motor protection applications, providing Class 10 overload tripping with an adjustable current release range of 23 to 28 amps. It features a high short-circuit trip value of 364 amps (N-release), making it highly effective for safeguarding motors in challenging operational environments. With its ring cable lug connection design and standard switching capacity, this circuit breaker offers robust installation flexibility and consistent performance in controlling and protecting motors in automation, manufacturing, and processing systems.\u003c\/p\u003e\n\u003cp data-start=\"1087\" data-end=\"1108\"\u003e\u003cstrong data-start=\"1091\" data-end=\"1108\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1110\" data-end=\"1602\"\u003e\n\u003cli data-start=\"1110\" data-end=\"1189\" class=\"\"\u003e\n\u003cp data-start=\"1112\" data-end=\"1189\" class=\"\"\u003eSize S0 Form Factor: Compact design suited for motor protection panels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1190\" data-end=\"1276\" class=\"\"\u003e\n\u003cp data-start=\"1192\" data-end=\"1276\" class=\"\"\u003eAdjustable Overload Trip (A-Release): 23–28 A range for flexible motor sizing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1277\" data-end=\"1356\" class=\"\"\u003e\n\u003cp data-start=\"1279\" data-end=\"1356\" class=\"\"\u003eHigh Short-Circuit Trip (N-Release): 364 A for robust fault protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1357\" data-end=\"1443\" class=\"\"\u003e\n\u003cp data-start=\"1359\" data-end=\"1443\" class=\"\"\u003eClass 10 Tripping Characteristics: Fast response for standard motor start-ups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1444\" data-end=\"1515\" class=\"\"\u003e\n\u003cp data-start=\"1446\" data-end=\"1515\" class=\"\"\u003eRing Cable Lug Connection: Reliable and secure connection type.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1516\" data-end=\"1602\" class=\"\"\u003e\n\u003cp data-start=\"1518\" data-end=\"1602\" class=\"\"\u003eStandard Switching Capacity: Suitable for industrial motor protection standards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1604\" data-end=\"1739\" class=\"\"\u003eThe 3RV2021-4NA40 provides dependable motor circuit protection with flexible installation options and high operational reliability.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":49105449779456,"sku":"3RV2021-4NA40","price":617.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/iqelectro_photo2_1_c61a7cb3-f997-4072-b3b6-36d929b13712.png?v=1785547360","url":"https:\/\/alotechparts.com\/products\/3rv2021-4na40-siemens-circuit-breaker-size-s0-for-motor-protection","provider":"Alo Tech Solutions","version":"1.0","type":"link"}