{"product_id":"schneider-atv21hd37n4","title":"Schneider ATV21HD37N4","description":"\u003cp\u003eDesigned for variable speed control in HVAC applications, the Schneider Electric Altivar 21 (ATV21) series variable frequency drive (VFD) model ATV21HD37N4 optimizes pump and fan performance. This drive is engineered to deliver robust control and significant energy savings within demanding industrial environments.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Altivar 21 (ATV21)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Power Rating:\u003c\/strong\u003e 37 kW (50 HP)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 400\/460V AC (indicated by '4' in the part number)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Type:\u003c\/strong\u003e Sensorless Vector Control\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Type:\u003c\/strong\u003e IP20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Wall-mount or direct panel mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 50\/60 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHarmonic Distortion:\u003c\/strong\u003e Built-in DC choke for reduced harmonic distortion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe ATV21HD37N4 is specifically suited for variable torque applications commonly found in building automation and industrial HVAC systems. Its robust design makes it ideal for controlling centrifugal pumps and fans in applications such as air handling units, cooling towers, and exhaust systems.\u003c\/p\u003e\n\n\u003cp\u003eAvailable from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider ATV21HD37N4 or contact our technical team for cross-reference assistance with compatible Altivar 21 components.\u003c\/p\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":41128591589460,"sku":"ATV21HD37N4","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/2986\/0180\/files\/default-1_d148266d-f6f0-43de-97db-2d3575a864d7.webp?v=1777505650","url":"https:\/\/catalog.industrialautomationco.com\/products\/schneider-atv21hd37n4","provider":"IAC Catalog","version":"1.0","type":"link"}