{"product_id":"new-sealed-allen-bradley-20g21nc043ja0nnnnn-ab","title":"Sealed Allen Bradley 20G21NC043JA0NNNNN AB – Sealed","description":"\u003carticle class=\"koeed-container\"\u003e\n  \u003c!-- Engineer's Quick Brief --\u003e\n  \u003csection class=\"koeed-section\"\u003e\n    \u003ch2 style=\"color: #16c8c8;\"\u003eEngineer's Quick Brief\u003c\/h2\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eHigh-Performance Control:\u003c\/strong\u003e Optimized for the \u003cstrong\u003eAllen-Bradley PowerFlex 755\u003c\/strong\u003e series, providing advanced motor control for induction and permanent magnet motors.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIntegrated Safety \u0026amp; Motion:\u003c\/strong\u003e Supports Integrated Safety over EtherNet\/IP and sophisticated motion instructions, reducing wiring complexity and hardware costs.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eRobust Scaling:\u003c\/strong\u003e The \u003cstrong\u003e43 Amp (Frame 3)\u003c\/strong\u003e output is ideal for medium-duty industrial applications including conveyors, fans, and centrifugal pumps.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- SEO Introduction --\u003e\n  \u003csection class=\"koeed-section\"\u003e\n    \u003ch3\u003eAdvanced Motor Control with Allen-Bradley 20G21NC043JA0NNNNN\u003c\/h3\u003e\n    \u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 20G21NC043JA0NNNNN\u003c\/strong\u003e is a premier \u003cstrong\u003ePowerFlex 755 AC Drive\u003c\/strong\u003e designed for global industrial environments. This \u003cstrong\u003e400V AC, 3-Phase\u003c\/strong\u003e frequency inverter offers high-density performance in an \u003cstrong\u003eIP20\/IP00 Open Type\u003c\/strong\u003e enclosure. Featuring embedded \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e communication, it enables seamless integration into the Rockwell Automation Studio 5000 environment, facilitating real-time diagnostics and predictive maintenance.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- Technical Specifications Table --\u003e\n  \u003csection class=\"koeed-section\"\u003e\n    \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n    \u003cdiv style=\"overflow-x: auto;\"\u003e\n      \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #eeeeee; font-size: 14px;\"\u003e\n        \u003cthead\u003e\n          \u003ctr style=\"background-color: #16c8c8; color: #ffffff;\"\u003e\n            \u003cth style=\"padding: 12px; text-align: left;\"\u003eParameter\u003c\/th\u003e\n            \u003cth style=\"padding: 12px; text-align: left;\"\u003eValue \/ Specification\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003ePowerFlex 755 AC Drive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #fafafa;\"\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003e\u003cstrong\u003eCatalog Number\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003e20G21NC043JA0NNNNN\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003e400V AC \/ 540V DC (3-Phase)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #fafafa;\"\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003e\u003cstrong\u003eOutput Current (ND\/HD)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003e43 Amps (Normal Duty) \/ 37 Amps (Heavy Duty)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003e\u003cstrong\u003eFrame Size\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003eFrame 3\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #fafafa;\"\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003e\u003cstrong\u003eEnclosure Type\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003eIP20 \/ IP00 (Open Type)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border-bottom: 1px solid #eeeeee;\"\u003eEmbedded EtherNet\/IP Port\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- Application Matrix --\u003e\n  \u003csection class=\"koeed-section\"\u003e\n    \u003ch3\u003eIndustrial Application Matrix\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eMaterial Handling:\u003c\/strong\u003e Precise torque control for high-inertia conveyors and sorting systems.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eHVAC Systems:\u003c\/strong\u003e Energy-efficient variable speed control for industrial fans and large-scale cooling pumps.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eProcessing Plants:\u003c\/strong\u003e Reliable performance for mixers and centrifuges requiring constant torque and safety interlocking.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- Koeed B2B Tool: PowerFlex Sizing Calculator --\u003e\n  \u003csection class=\"koeed-section\" id=\"koeed-calc-tool\" style=\"background: #f9f9f9; padding: 20px; border-radius: 8px; border: 2px solid #16c8c8; margin: 20px 0;\"\u003e\n    \u003ch3 style=\"margin-top: 0; color: #16c8c8;\"\u003ePowerFlex 755 Specification \u0026amp; Load Calculator\u003c\/h3\u003e\n    \u003cp style=\"font-size: 13px;\"\u003eVerify motor compatibility for the \u003cstrong\u003e20G21NC043\u003c\/strong\u003e (43A) model.\u003c\/p\u003e\n    \n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom: 15px;\"\u003e\n      \u003cdiv\u003e\n        \u003clabel style=\"display:block; font-size: 12px; font-weight: bold;\"\u003eSelect Duty Type:\u003c\/label\u003e\n        \u003cselect id=\"koeed-duty\" style=\"width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px;\"\u003e\n          \u003coption value=\"43\"\u003eNormal Duty (43A)\u003c\/option\u003e\n          \u003coption value=\"37\"\u003eHeavy Duty (37A)\u003c\/option\u003e\n        \u003c\/select\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003clabel style=\"display:block; font-size: 12px; font-weight: bold;\"\u003eVoltage Setting:\u003c\/label\u003e\n        \u003cinput type=\"text\" value=\"400V AC\" disabled style=\"width: 100%; padding: 8px; border: 1px solid #ddd; background: #eee; border-radius: 4px;\"\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \n    \u003cbutton onclick=\"koeedCalculate()\" style=\"background: #16c8c8; color: #fff; border: none; padding: 10px 20px; border-radius: 4px; cursor: pointer; font-weight: bold; width: 100%;\"\u003eCalculate Max Power (kW)\u003c\/button\u003e\n    \n    \u003cdiv id=\"koeed-result\" style=\"margin-top: 15px; padding: 15px; background: #fff; border-left: 4px solid #16c8c8; font-family: monospace; display: none;\"\u003e\n      \u003c!-- Result injected here --\u003e\n    \u003c\/div\u003e\n\n    \u003cnoscript\u003e\u003cp\u003eThis tool requires JavaScript to calculate motor power compatibility. Reference the 43A rating in the table above.\u003c\/p\u003e\u003c\/noscript\u003e\n  \u003c\/section\u003e\n\n  \u003cscript\u003e\n    function koeedCalculate() {\n      const current = parseFloat(document.getElementById('koeed-duty').value);\n      const voltage = 400;\n      const pf = 0.85; \/\/ Standard power factor assumption for motors\n      const kw = (Math.sqrt(3) * voltage * current * pf) \/ 1000;\n      const hp = kw * 1.341;\n      \n      const resultDiv = document.getElementById('koeed-result');\n      resultDiv.style.display = 'block';\n      resultDiv.innerHTML = `\n        \u003cstrong\u003eCalculated Limits for 20G21NC043:\u003c\/strong\u003e\u003cbr\u003e\n        - Max Motor Power: ~${kw.toFixed(2)} kW\u003cbr\u003e\n        - Approx Horsepower: ~${hp.toFixed(1)} HP\u003cbr\u003e\n        - Frame Size: Frame 3 (Required for 43A Rating)\n      `;\n    }\n  \u003c\/script\u003e\n\n  \u003c!-- Troubleshooting \u0026 FAQ --\u003e\n  \u003csection class=\"koeed-section\"\u003e\n    \u003ch3\u003eTroubleshooting \u0026amp; FAQ\u003c\/h3\u003e\n    \u003cdiv class=\"koeed-faq\"\u003e\n      \u003cp\u003e\u003cstrong\u003eQ: What does the \"21NC\" in the catalog number signify?\u003c\/strong\u003e\u003cbr\u003e\n      A: It indicates an input voltage of 400V AC\/540V DC with an IP20\/IP00 Open Type enclosure, optimized for cabinet mounting.\u003c\/p\u003e\n      \n      \u003cp\u003e\u003cstrong\u003eQ: Common Fault Code: F81 (Port 1 Communication Loss)?\u003c\/strong\u003e\u003cbr\u003e\n      A: This typically refers to a loss of communication on the embedded EtherNet\/IP port. Verify the RJ45 connection and check if the PLC or switch has dropped the connection.\u003c\/p\u003e\n\n      \u003cp\u003e\u003cstrong\u003eQ: Can this drive support Permanent Magnet (PM) motors?\u003c\/strong\u003e\u003cbr\u003e\n      A: Yes, the PowerFlex 755 series includes firmware support for PM motor control in both open-loop and closed-loop configurations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- Cross-Reference Guide --\u003e\n  \u003csection class=\"koeed-section\"\u003e\n    \u003ch3\u003eCross-Reference Guide\u003c\/h3\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px;\"\u003e\n      \u003ctr style=\"border-bottom: 1px solid #eee;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003ePrevious Series Migration\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePowerFlex 700 \/ 700S (Consult I\/O mapping)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #eee;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eFunctional Equivalent\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e20G11NC043 (PowerFlex 753 variant without motion features)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eFrame Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eAll Frame 3 PowerFlex 750 Series components\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- Structured Data --\u003e\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n      {\n        \"@type\": \"Question\",\n        \"name\": \"What does the 21NC in the catalog number signify?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"It indicates an input voltage of 400V AC\/540V DC with an IP20\/IP00 Open Type enclosure.\"\n        }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"How to fix PowerFlex 755 F81 fault?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"Check the RJ45 Ethernet cable connection to Port 1 and ensure the network switch\/PLC is active.\"\n        }\n      }\n    ]\n  }\n  \u003c\/script\u003e\n  \n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"WebApplication\",\n    \"name\": \"PowerFlex 755 Specification \u0026 Load Calculator\",\n    \"operatingSystem\": \"All\",\n    \"applicationCategory\": \"TechnicalCalculator\",\n    \"description\": \"Calculates the maximum kilowatt and horsepower ratings for Allen-Bradley 20G21NC043 based on duty cycle.\"\n  }\n  \u003c\/script\u003e\n\u003c\/article\u003e\n\n\u003cstyle\u003e\n  .koeed-container { line-height: 1.6; color: #333; }\n  .koeed-section { margin-bottom: 30px; }\n  .koeed-section h2, .koeed-section h3 { margin-bottom: 15px; }\n  .koeed-faq p { margin-bottom: 15px; }\n\u003c\/style\u003e","brand":"ALLEN_BRADLEY","offers":[{"title":"Default Title","offer_id":44158528913593,"sku":"355613995691","price":8516.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8476\/7929\/files\/s-l1600_335ebe27-b2bc-4d39-9b0b-2c8d09d8f0a9.jpg?v=1715729685","url":"https:\/\/koeed.com\/cs\/products\/new-sealed-allen-bradley-20g21nc043ja0nnnnn-ab","provider":"KOEED","version":"1.0","type":"link"}