{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ATV21WD75N4C","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"ATV21WD75N4C","canonicalUrl":"https://aoctrl.com/schneider/ATV21WD75N4C","factsUrl":"https://aoctrl.com/api/mcp/products/ATV21WD75N4C","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Altivar 21 ATV21WD75N4C AC drive, 75 kW, 380-480 V, 3-phase, 105.3 kVA, integrated Class B EMC filter, CE.","salesMarkdown":"## 75 kW VFD for asynchronous motors The ATV21WD75N4C is a 75 kW AC drive from the Altivar 21 range, designed for three-phase asynchronous motors on a 380-480 V supply. It delivers 105.3 kVA apparent power at 380 V and draws 141.8 A line current at 380 V or 111.3 A at 480 V. The integrated Class B EMC filter and compliance with IEC 61800-3 category C1 through C3 mean this drive can be installed in first-environment (residential) and second-environment (industrial) networks without an external filter in most cases — a real time-saver during panel commissioning. ## Switching frequency and derating The switching frequency is adjustable from 6 to 16 kHz, with a derating factor applied above 8 kHz. For a 75 kW motor driving a fan or pump, running at 6-8 kHz keeps the drive within its thermal envelope without derating; pushing to 16 kHz quiets the motor but reduces continuous output current — plan the panel cooling accordingly.","metaTitle":"Schneider Electric ATV21WD75N4C AC Drive (VFD) 480V, 75 kW","metaDescription":"Schneider Electric ATV21WD75N4C Altivar 21 AC drive, 75 kW, 380-480 V, 3-phase, integrated Class B EMC filter. Mature lifecycle, quoted to order. CE marked.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["AC Drive (VFD) 480V"],"specifications":{"Depth":"14.3 in (364 mm)","Phase":"3 phase","Width":"14.3 in (362 mm)","Height":"39.4 in (1000 mm)","Marking":"CE","Category":"22158-ATV212 30 - 100 HP 460 VOLT","Standards":"IEC 61800-3 category C1 IEC 61800-3 environments 1 category C3 EN 61800-3 category C1 EN 61800-3 environments 2 category C2 EN 61800-3 EN 61800-3 environments 2 category C3 EN 61800-3 environments 1 category C3 EN 55011 group 1 class B IEC 61800-3 environments 1 category C2 IEC 61800-3 environments 2 category C3 EN 61800-3 environments 1 category C2 IEC 61800-3 environments 2 category C2 IEC 61800-3 IEC 61800-3 environments 2 category C1 IEC 61800-3 environments 1 category C1 EN 61800-5-1 EN 61800-3 environments 1 category C1 EN 61800-3 environments 2 category C1 IEC 61800-5-1","Diagnostic":"1 LED (red) for DC bus energized","EMC filter":"Class B EMC filter integrated","Data format":"8 bits, 1 stop, odd even or no configurable parity","Noise level":"63.7 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":"111.3 A 480 V 141.8 A 380 V","Apparent power":"105.3 kVA 380 V","Assembly style":"With heat sink","Component name":"ATV21","Connector Type":"1 RJ45","Motor power kW":"75 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":"3 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 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":"6...16 kHz adjustable 8...16 kHz with derating factor","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 multiple registers (16) 2 words maximum Write single register (06) Read device identification (43) Time out setting from 0.1 to 100 s Monitoring inhibitable Read holding registers (03) 2 words maximum","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":"Not available in voltage/frequency ratio motor control Automatic whatever the load Adjustable","Maximum transient current":"176 A 60 s","Product or Component Type":"Variable speed drive","Maximum Horse Power Rating":"100 hp","Communication Port Protocol":"Modbus","Nominal switching frequency":"8 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":"160 A 380 V 160 A 460 V","Asynchronous motor control profile":"Quadratic voltage/frequency ratio Constant voltage/frequency ratio Current flux vector control (FVC) without speed feedback Constant voltage/frequency ratio with automatic IR compensation Energy saving ratio","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/th/en/product/ATV21WD75N4C/variable-speed-drive-atv21-75kw-100hp-480v-class-b-emc-filter-ip54/","alternativesUrl":"https://aoctrl.com/api/mcp/products/ATV21WD75N4C/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Schneider Electric provide for ATV21WD75N4C?","answer":"The drive carries CE marking and complies with IEC 61800-5-1 (safety), EN 61800-3 (EMC), and EN 55011 Group 1 Class B. The integrated Class B EMC filter covers conducted emissions for first-environment installations. RoHS and REACH declarations are standard with the product documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/ATV21WD75N4C","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/ATV21WD75N4C 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}}