{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ATV21WD15N4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"ATV21WD15N4","canonicalUrl":"https://aoctrl.com/schneider/ATV21WD15N4","factsUrl":"https://aoctrl.com/api/mcp/products/ATV21WD15N4","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Altivar 21 ATV21WD15N4 AC drive, 15 kW, 380-480 V, 3-phase, 22.6 A line current at 480 V, integrated Class A EMC filter, CE marked.","salesMarkdown":"## 15 kW VFD for asynchronous motors The ATV21WD15N4 is a 15 kW Altivar 21 variable frequency drive from Schneider Electric, designed for three-phase asynchronous motors in HVAC and building management applications. It accepts a 380...480 V supply at -15...10 % tolerance, drawing 22.6 A line current at 480 V or 28.4 A at 380 V. The drive's 12...16 kHz adjustable switching frequency lets you trade audible motor noise against thermal derating — at 16 kHz the continuous output current drops, so match the switching frequency to the load duty cycle before locking the BOM. ## Panel fit and mounting constraints The enclosure measures 22.05 in high by 11.4 in wide by 12.4 in deep (560 x 290 x 315 mm), with a vertical mounting orientation required (±10° tolerance). The heat sink assembly needs clearance for airflow — plan the gland plate and cable entry accordingly. Operating altitude is limited to 2000 m for corner-grounded distribution networks; above that up to 3000 m with derating. Pollution degree 2 per IEC 61800-5-1 means the drive suits typical control-room environments, not heavy dust or conductive contamination. ## EMC compliance and fieldbus options The drive ships with an integrated Class A EMC filter and carries CE marking under EN 61800-5-1 and IEC 61800-3 (category C2 for first environment, C3 for second). It meets EN 55011 Class A Group 1 conducted and radiated limits — suitable for industrial zones but may need additional filtering for residential or light-commercial installations. Built-in Modbus RTU over a 2-wire RS-485 physical interface (9600 or 19200 bps, configurable parity) supports up to 247 addresses. Optional communication cards add BACnet, LonWorks, Metasys N2, or Apogee FLN for building automation integration.","metaTitle":"Schneider Electric ATV21WD15N4 AC Drive, 15 kW, 380-480 V","metaDescription":"Schneider Electric ATV21WD15N4 Altivar 21 AC drive, 15 kW, 380-480 V 3-phase input, 22.6 A line current at 480 V. CE marked, integrated Class A EMC filter.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["AC Drive (VFD) 480V"],"specifications":{"Depth":"12.4 in (315 mm)","Phase":"3 phase","Width":"11.4 in (290 mm)","Height":"22.05 in (560 mm)","Marking":"CE","Category":"22157-ATV212 1 - 25 HP 460 VOLT","Standards":"EN 61800-5-1 IEC 61800-3 category C2 EN 61800-3 environments 2 category C1 IEC 61800-3 environments 1 category C2 EN 55011 class A group 1 EN 61800-3 environments 1 category C2 IEC 61800-3 environments 2 category C3 IEC 61800-5-1 EN 61800-3 environments 1 category C3 IEC 61800-3 EN 61800-3 category C2 IEC 61800-3 environments 1 category C1 IEC 61800-3 category C3 EN 61800-3 environments 1 category C1 IEC 61800-3 environments 2 category C2 EN 61800-3 environments 2 category C3 IEC 61800-3 environments 1 category C3 EN 61800-3 EN 61800-3 category C3 IEC 61800-3 environments 2 category C1 EN 61800-3 environments 2 category C2","Diagnostic":"1 LED (red) for DC bus energized","EMC filter":"Class A EMC filter integrated","Data format":"8 bits, 1 stop, odd even or no configurable parity","Noise level":"57.4 dB 86/188/EEC","Option card":"Communication card APOGEE FLN Communication card BACnet Communication card LonWorks Communication card METASYS N2","Speed range":"1...10","Line current":"22.6 A 480 V 28.4 A 380 V","Apparent power":"23.2 kVA 380 V","Assembly style":"With heat sink","Component name":"ATV21","Connector Type":"1 RJ45","Motor power kW":"15 kW","Output voltage":"= 1 mOhm 500 V DC for 1 minute","Speed accuracy":"+/- 10 % of nominal slip 0.2 Tn to Tn","Regulation loop":"Adjustable PI regulator","Torque accuracy":"+/- 15 %","lifecycle_stage":"mature","Pollution degree":"2 IEC 61800-5-1","Range of Product":"Altivar 21","Shock resistance":"15 gn 11 ms IEC 60068-2-27","Relative humidity":"5...95 % without condensation IEC 60068-2-3 5...95 % without dripping water IEC 60068-2-3","Transmission Rate":"9600 bps or 19200 bps","Operating altitude":"3280.84...9842.52 ft (1000...3000 m) limited to 2000 m for the Corner Grounded distribution network","Operating position":"Vertical +/- 10 degree","Physical interface":"2-wire RS 485","Transmission frame":"RTU","Dielectric strength":"3535 V DC between earth and power terminals 5092 V DC between control and power terminals","Number of addresses":"1...247","Product destination":"Asynchronous motors","Switching frequency":"12...16 kHz with derating factor 6...16 kHz adjustable","Frequency resolution":"Analog input 0.024/50 Hz Display unit 0.1 Hz","Power Supply Voltage":"380...480 V - 15...10 %","Transient overtorque":"120 % of nominal motor torque +/- 10 % 60 s","Type of polarization":"No impedance","Vibration resistance":"1 gn (f= 13...200 Hz) conforming to EN/IEC 60068-2-8 1.5 mm (f= 3...13 Hz) conforming to EN/IEC 60068-2-6","Communication Service":"Write single register (06) Time out setting from 0.1 to 100 s Write multiple registers (16) 2 words maximum Read holding registers (03) 2 words maximum Read device identification (43) Monitoring inhibitable","Power Supply Frequency":"50...60 Hz - 5...5 %","IP degree of protection":"IP54 EN 60530 IP54 EN 61800-5-2 IP54 IEC 60529 IP54 IEC 61800-5-1","Motor slip compensation":"Adjustable Not available in voltage/frequency ratio motor control Automatic whatever the load","Maximum transient current":"33.6 A 60 s","Product or Component Type":"Variable speed drive","Maximum Horse Power Rating":"20 hp","Communication Port Protocol":"Modbus","Nominal switching frequency":"12 kHz","Power Supply Voltage Limits":"323...528 V","Environmental characteristic":"Classes 3C1 conforming to IEC 60721-3-3 Classes 3S2 conforming to IEC 60721-3-3","Product Specific Application":"Pumps and fans in HVAC","Speed drive output frequency":"0.5...200 Hz","maximum prospective line Isc":"22 kA","Electromagnetic compatibility":"1.2/50 µs - 8/20 µs surge immunity test level 3 conforming to IEC 61000-4-5 Conducted radio-frequency immunity test level 3 conforming to IEC 61000-4-6 Electrical fast transient/burst immunity test level 4 conforming to IEC 61000-4-4 Electrostatic discharge immunity test level 3 conforming to IEC 61000-4-2 Radiated radio-frequency electromagnetic field immunity test level 3 conforming to IEC 61000-4-3 Voltage dips and interruptions immunity test conforming to IEC 61000-4-11","Power Supply Frequency Limits":"47.5...63 Hz","Maximum Continuous Output Current":"30.5 A 380 V 30.5 A 460 V","Asynchronous motor control profile":"Quadratic voltage/frequency ratio Constant voltage/frequency ratio Constant voltage/frequency ratio with automatic IR compensation Energy saving ratio Current flux vector control (FVC) without speed feedback","Ambient Air Temperature for Storage":"-13...158 °F (-25...70 °C)","Ambient air temperature for operation":"14...104 °F (-10...40 °C) (without derating) 104...122 °F (40...50 °C) (with derating factor)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/vn/en/product/ATV21WD15N4/variable-speed-drive-atv21-15kw-20hp-480v-emc-filter-class-a-ip54/","alternativesUrl":"https://aoctrl.com/api/mcp/products/ATV21WD15N4/alternatives.json"},"ai":{"faq":[{"question":"What is the ATV21WD15N4 used for?","answer":"It is a 15 kW variable frequency drive for three-phase asynchronous motors in HVAC, pumping, and building automation systems. The integrated PI regulator handles closed-loop pressure or flow control without an external controller."},{"question":"What compliance documentation does Schneider Electric provide for ATV21WD15N4?","answer":"The drive is CE marked and complies with EN 61800-5-1 (safety), IEC 61800-3 (EMC categories C2/C3), and EN 55011 Class A Group 1. It also meets IEC 60068-2-27 shock resistance (15 gn, 11 ms) and IEC 60068-2-3 humidity (5-95% RH without condensation)."},{"question":"What is the closest alternative to ATV21WD15N4 in the Altivar 21 family?","answer":"Within the same Altivar 21 series, the closest peer is the ATV21WD11N4 (11 kW) for a lower power point, or the ATV21WD18N4 (18.5 kW) for a step up. All share the same form factor, fieldbus options, and EMC filter architecture — the deciding factor is the motor nameplate power."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/ATV21WD15N4","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/ATV21WD15N4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}