{"product_id":"delta-vfd015b21a","title":"Delta VFD015B21A VFD Drive","description":"\u003cstyle\u003e.shly-pdp{--ink:#1c2024;--muted:#5b6570;--line:#dfe3e8;--bg:#fff;--soft:#f6f7f9;--accent:#C8102E;max-width:1000px;margin:0 auto;padding:4px 0 32px;color:var(--ink);font-family:-apple-system,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;line-height:1.62;font-size:15.5px;-webkit-text-size-adjust:100%;}\n.shly-pdp *{box-sizing:border-box;}\n.shly-pdp h3{font-size:17px;font-weight:700;margin:34px 0 12px;padding:0 0 8px;border-bottom:1px solid var(--line);letter-spacing:.2px;}\n.shly-pdp p{margin:0 0 12px;}\n.shly-pdp .shly-eyebrow{font-size:11.5px;letter-spacing:1.6px;text-transform:uppercase;color:var(--accent);font-weight:700;margin:0 0 8px;}\n.shly-pdp .shly-lead{font-size:16.5px;line-height:1.68;color:#2b3138;margin:0 0 4px;}\n.shly-pdp .shly-lead b{font-weight:700;}\n.shly-pdp .shly-facts{list-style:none;margin:14px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden;}\n.shly-pdp .shly-facts li{background:var(--soft);padding:12px 14px;font-size:13.5px;line-height:1.45;}\n.shly-pdp .shly-facts span{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.9px;color:var(--muted);margin-bottom:4px;}\n.shly-pdp .shly-facts strong{font-weight:700;font-size:14.5px;}\n.shly-pdp table{width:100%;border-collapse:collapse;margin:6px 0 10px;font-size:14.5px;table-layout:fixed;}\n.shly-pdp th,.shly-pdp td{text-align:left;vertical-align:top;padding:9px 12px;border-bottom:1px solid var(--line);word-break:break-word;}\n.shly-pdp th{width:38%;font-weight:600;color:#333a41;background:#fafbfc;}\n.shly-pdp tr.shly-group td{background:#eef1f4;font-size:11.5px;letter-spacing:1.3px;text-transform:uppercase;font-weight:700;color:#48525c;padding:7px 12px;}\n.shly-pdp .shly-note{font-size:13.5px;color:var(--muted);border-left:3px solid var(--line);padding:2px 0 2px 12px;margin:10px 0 0;}\n.shly-pdp ul.shly-list{margin:8px 0 0;padding:0 0 0 20px;}\n.shly-pdp ul.shly-list li{margin:0 0 8px;}\n.shly-pdp .shly-q{border-top:1px solid var(--line);padding:14px 0 2px;}\n.shly-pdp .shly-q:first-of-type{border-top:none;}\n.shly-pdp .shly-q p{margin:0 0 6px;}\n.shly-pdp .shly-q .shly-qq{font-weight:700;color:#1c2024;}\n.shly-pdp .shly-q .shly-qq em{font-style:normal;color:var(--accent);margin-right:6px;}\n@media (max-width:720px){\n.shly-pdp{font-size:15px;}\n.shly-pdp .shly-facts{grid-template-columns:repeat(2,1fr);}\n.shly-pdp th,.shly-pdp td{padding:8px 10px;font-size:14px;}\n.shly-pdp th{width:42%;}\n}\u003c\/style\u003e\u003cdiv class=\"shly-pdp\"\u003e\n\u003cp class=\"shly-eyebrow\"\u003eDelta · VFD-B\u003c\/p\u003e\n\u003cp class=\"shly-lead\"\u003e\u003cb\u003eVFD015B21A\u003c\/b\u003e is a Delta VFD Drive. It is used in pump sets, conveyor belts, fan and compressor drives where the installed unit is matched to the original catalog number and a compact, documented part is required.\u003c\/p\u003e\n\u003cul class=\"shly-facts\"\u003e\n\u003cli\u003e\n\u003cspan\u003eRated operational voltage\u003c\/span\u003e\u003cstrong\u003e3-phase 400 V AC\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eOverload capacity\u003c\/span\u003e\u003cstrong\u003e150% for 60 s\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eEnclosure rating\u003c\/span\u003e\u003cstrong\u003eIP20 (IEC 60529)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFrequency\u003c\/span\u003e\u003cstrong\u003e50\/60 Hz (IEC 61800-2)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr class=\"shly-group\"\u003e\u003ctd colspan=\"2\"\u003eElectrical\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated operational voltage\u003c\/th\u003e\n\u003ctd\u003e3-phase 400 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply voltage\u003c\/th\u003e\n\u003ctd\u003e1-phase 200...240 V \/ 3-phase 380...480 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency\u003c\/th\u003e\n\u003ctd\u003e50\/60 Hz (IEC 61800-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl method\u003c\/th\u003e\n\u003ctd\u003eV\/f, sensorless vector (IEC 61800-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverload capacity\u003c\/th\u003e\n\u003ctd\u003e150% for 60 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated speed\u003c\/th\u003e\n\u003ctd\u003eOne high speed pulse input terminal MI7 built-in with maximum speed up to 33kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\n\u003ctr class=\"shly-group\"\u003e\u003ctd colspan=\"2\"\u003eMechanical\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eCabinet \/ DIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnclosure rating\u003c\/th\u003e\n\u003ctd\u003eIP20 (IEC 60529)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"shly-group\"\u003e\u003ctd colspan=\"2\"\u003eEnvironment and compliance\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating temperature\u003c\/th\u003e\n\u003ctd\u003e0...+40 °C (IEC 60068-2-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertifications\u003c\/th\u003e\n\u003ctd\u003eCE, UL, cULus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp class=\"shly-note\"\u003eProduct type and series follow the official Delta download-centre catalogue search for this model which lists VFD015B21A under the Delta product line; the product type published for this catalog number is \"VFD Drive\". Source: https:\/\/downloadcenter.deltaww.com\/en-US\/DownloadCenter?q=VFD015B21A. Numeric ratings in the table above are the values carried on this page and must be confirmed against the original Delta manufacturer datasheet before they are treated as this catalog number's ratings; they are not estimated here.\u003c\/p\u003e\n\u003cp class=\"shly-note\"\u003eLifecycle: discontinued by the manufacturer. Current-production replacement: \u003cb\u003eMS300 \/ C2000 Plus\u003c\/b\u003e. Cross-reference by function and ratings, not by label alone.\u003c\/p\u003e\n\u003ch3\u003eModel comparison in the same family\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr class=\"shly-group\"\u003e\u003ctd colspan=\"4\"\u003eDelta VFD-B variants\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width:26%\"\u003eCatalog number\u003c\/th\u003e\n\u003cth style=\"width:24%\"\u003eOverload capacity\u003c\/th\u003e\n\u003cth style=\"width:24%\"\u003eRated operational voltage\u003c\/th\u003e\n\u003cth style=\"width:24%\"\u003eFrequency\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cb\u003eVFD015B21A\u003c\/b\u003e (this page)\u003c\/td\u003e\n\u003ctd\u003e150% for 60 s\u003c\/td\u003e\n\u003ctd\u003e3-phase 400 V AC\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz (IEC 61800-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ca href=\"\/products\/delta-vfd015b23a-vfd-drive\"\u003eVFD015B23A\u003c\/a\u003e\n\u003ctd\u003e3-phase 400 V AC\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz (IEC 61800-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ca href=\"\/products\/delta-vfd015b43a-vfd-drive\"\u003eVFD015B43A\u003c\/a\u003e\n\u003ctd\u003e3-phase 400 V AC\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz (IEC 61800-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ca href=\"\/products\/delta-vfd015b53a-vfd-drive\"\u003eVFD015B53A\u003c\/a\u003e\n\u003ctd\u003e3-phase 400 V AC\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz (IEC 61800-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp class=\"shly-note\"\u003eBefore selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.\u003c\/p\u003e\n\u003ch3\u003eWhere it sits in the control system\u003c\/h3\u003e\n\u003cp\u003eThe VFD015B21A is the drive element in a Delta motor installation. It supplies the motor with controlled power and carries the output frequency and overload behaviour, so the motor and the supply conductor are sized to the ratings stated in the manufacturer documentation, not to a generic assumption.\u003c\/p\u003e\n\u003cp\u003eTypical installations place it in pump sets, conveyor belts, fan and compressor drives, where the unit is matched to the original catalog number and the enclosure provides Cabinet \/ DIN rail support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.\u003c\/p\u003e\n\u003ch3\u003eSelection notes for Delta VFD015B21A\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDelta VFD015B21A\u003c\/strong\u003e — Variable frequency drive for motor speed and torque control in pumps, fans, conveyors and general industrial machinery. The figures below are taken from the specification table on this page for catalog number VFD015B21A; always cross-check the catalog number and hardware revision on the nameplate before placing an order.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated operational voltage: \u003cstrong\u003e3-phase 400 V AC\u003c\/strong\u003e — Use it as the reference when cross-checking a current-production equivalent.\u003c\/li\u003e\n\u003cli\u003eOverload capacity: \u003cstrong\u003e150% for 60 s\u003c\/strong\u003e — Verify it in the project documentation before confirming the order.\u003c\/li\u003e\n\u003cli\u003eEnclosure rating: \u003cstrong\u003eIP20 (IEC 60529)\u003c\/strong\u003e — Check this value against the nameplate of the installed unit before ordering.\u003c\/li\u003e\n\u003cli\u003eSupply voltage: \u003cstrong\u003e1-phase 200...240 V \/ 3-phase 380...480 V AC\u003c\/strong\u003e — Match it to the existing panel and upstream protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a discontinued unit, match function and electrical ratings rather than the label alone.\u003c\/p\u003e\n\n\u003ch3\u003eCommon questions about VFD015B21A\u003c\/h3\u003e\n\u003cdiv class=\"shly-q\"\u003e\n\u003cp class=\"shly-qq\"\u003e\u003cem\u003eQ.\u003c\/em\u003eWhich official Delta document defines VFD015B21A?\u003c\/p\u003e\n\u003cp\u003eThe official Delta download-centre catalogue search for this model lists VFD015B21A under the Delta product line, and the product type published for this catalog number is \"VFD Drive\". The document and its official catalogue record are publicly retrievable at https:\/\/downloadcenter.deltaww.com\/en-US\/DownloadCenter?q=VFD015B21A. Use that document as the authority for ratings and installation conditions before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"shly-q\"\u003e\n\u003cp class=\"shly-qq\"\u003e\u003cem\u003eQ.\u003c\/em\u003eBefore ordering VFD015B21A, which certifications entry should be checked?\u003c\/p\u003e\n\u003cp\u003eThe certifications entry quoted above is CE, UL, cULus. Confirm this figure against the unit currently in the panel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"shly-q\"\u003e\n\u003cp class=\"shly-qq\"\u003e\u003cem\u003eQ.\u003c\/em\u003eWhere can I find the control method data for VFD015B21A?\u003c\/p\u003e\n\u003cp\u003eIt is listed in the specification table for Delta VFD015B21A as V\/f, sensorless vector (IEC 61800-2). Use the value as the reference when sourcing a current-production equivalent.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"shly-q\"\u003e\n\u003cp class=\"shly-qq\"\u003e\u003cem\u003eQ.\u003c\/em\u003eFor VFD015B21A, what does the specification table state about operating temperature?\u003c\/p\u003e\n\u003cp\u003eThe specification table lists operating temperature = 0...+40 °C (IEC 60068-2-1) for Delta VFD015B21A. Check the revision of the installed unit if the catalog number has been superseded.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"shly-q\"\u003e\n\u003cp class=\"shly-qq\"\u003e\u003cem\u003eQ.\u003c\/em\u003eCan the VFD015B21A replace the unit currently installed in my panel?\u003c\/p\u003e\n\u003cp\u003eCompare catalog number VFD015B21A and the ratings above with the nameplate of the installed device. A current-production equivalent is selected by function and electrical rating, not by the label alone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"shly-q\"\u003e\n\u003cp class=\"shly-qq\"\u003e\u003cem\u003eQ.\u003c\/em\u003eWhat should I include in an enquiry for VFD015B21A?\u003c\/p\u003e\n\u003cp\u003eSend the full catalog number VFD015B21A, the required quantity and a photo of the nameplate. Stock, lead time and the applicable compliance documents can then be confirmed for Delta VFD015B21A.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\n\n\n\n\u003c\/div\u003e","brand":"Delta","offers":[{"title":"Default Title","offer_id":71124945207549,"sku":"VFD015B21A","price":673.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/5665\/3309\/files\/new_delta_stock_e875cc7f-a8a1-4418-85db-885b5e7d5768.png?v=1786642945","url":"https:\/\/shly-plc.com\/products\/delta-vfd015b21a","provider":"SHLY-PLC","version":"1.0","type":"link"}