{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ATV21HU55M3X","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"ATV21HU55M3X","canonicalUrl":"https://aoctrl.com/schneider/ATV21HU55M3X","factsUrl":"https://aoctrl.com/api/mcp/products/ATV21HU55M3X","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Altivar 21 series, ATV21HU55M3X, variable frequency drive, 3-phase 200-240 V, 5.5 kW, 17.3 A line current, CE, mature lifecycle.","salesMarkdown":"The ATV21HU55M3X is a 5.5 kW Altivar 21 variable frequency drive for asynchronous motors on 200-240 V three-phase supply. Line current draws 17.3 A at 240 V (20.8 A at 200 V), apparent power 9.2 kVA. Switching frequency is adjustable 6-16 kHz, with derating above 12 kHz. Transient overtorque capability is 120% of nominal motor torque for 60 seconds — enough for short-duration overloads on conveyors or pumps. This drive is classified as mature in its lifecycle. CE marked. Complies with IEC 61800-3 for EMC in environments 1 and 2, categories C1, C2, C3, and with EN 61800-5-1 for safety. Pollution degree 3 per IEC 61800-5-1. Dielectric strength tested at 2830 V DC between earth and power terminals, 4230 V DC between control and power terminals. Operating altitude limited to 2000 m for corner-grounded distribution networks. ## Integration notes Mounts vertically (±10°). Dimensions: 9.1 in (232 mm) high, 7.09 in (180 mm) wide, 6.7 in (170 mm) deep. Assembly style is with heat sink; noise level 51 dB. Communication via 2-wire RS-485 Modbus RTU at 9600 or 19200 bps, with RJ45 connector. Optional communication cards available for BACnet, LonWorks, APOGEE FLN, or METASYS N2.","metaTitle":"Schneider ATV21HU55M3X Altivar 21 VFD, 5.5 kW, 200-240 V 3-P","metaDescription":"Schneider ATV21HU55M3X Altivar 21 variable frequency drive, 5.5 kW, 200-240 V 3-phase input, 17.3 A line current, CE marked, mature lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["AC Drive (VFD) 240V"],"specifications":{"Depth":"6.7 in (170 mm)","Phase":"3 phase","Width":"7.09 in (180 mm)","Height":"9.1 in (232 mm)","Marking":"CE","Category":"22155-ATV212 1 - 25 HP 230 VOLT","Standards":"IEC 61800-3 environments 1 category C1 IEC 61800-3 environments 1 category C3 EN 61800-3 environments 1 category C3 EN 61800-5-1 EN 61800-3 environments 1 category C2 IEC 61800-3 environments 2 category C1 EN 61800-3 environments 2 category C1 IEC 61800-3 environments 2 category C3 IEC 61800-5-1 EN 61800-3 EN 61800-3 environments 2 category C2 UL Type 1 EN 61800-3 environments 1 category C1 IEC 61800-3 IEC 61800-3 environments 2 category C2 IEC 61800-3 environments 1 category C2 EN 61800-3 environments 2 category C3","Diagnostic":"1 LED (red) for DC bus energized","EMC filter":"Without EMC filter","Data format":"8 bits, 1 stop, odd even or no configurable parity","Noise level":"51 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":"17.3 A 240 V 20.8 A 200 V","Apparent power":"9.2 kVA 240 V","Assembly style":"With heat sink","Component name":"ATV21","Connector Type":"1 RJ45","Motor power kW":"5.5 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 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":"2830 V DC between earth and power terminals 4230 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":"200...240 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 Monitoring inhibitable Read holding registers (03) 2 words maximum Time out setting from 0.1 to 100 s Read device identification (43) Write single register (06)","Power Supply Frequency":"50...60 Hz - 5...5 %","IP degree of protection":"IP20 on upper part without blanking plate on cover EN/IEC 60529 IP20 on upper part without blanking plate on cover EN/IEC 61800-5-1 IP21 EN/IEC 60529 IP21 EN/IEC 61800-5-1 IP41 on upper part EN/IEC 60529 IP41 on upper part EN/IEC 61800-5-1","Motor slip compensation":"Adjustable Automatic whatever the load Not available in voltage/frequency ratio motor control","Maximum transient current":"26.6 A 60 s","Product or Component Type":"Variable speed drive","Maximum Horse Power Rating":"7.5 hp","Communication Port Protocol":"Modbus","Nominal switching frequency":"12 kHz","Power Supply Voltage Limits":"170...264 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":"24.2 A 230 V","Asynchronous motor control profile":"Current flux vector control (FVC) without speed feedback Energy saving ratio Constant voltage/frequency ratio Quadratic voltage/frequency ratio Constant voltage/frequency ratio with automatic IR compensation","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":"https://cdn.aoctrl.com/5a568cc02a81117a544c844d8b3d6880.pdf","sourceUrl":"https://www.se.com/us/en/product/ATV21HU55M3X/variable-speed-drive-atv21-5-5kw-7-5hp-240v-ip20/","alternativesUrl":"https://aoctrl.com/api/mcp/products/ATV21HU55M3X/alternatives.json"},"ai":{"faq":[{"question":"What is the line current and power rating of ATV21HU55M3X?","answer":"The ATV21HU55M3X is rated for 5.5 kW motor power on 200-240 V three-phase input, drawing 17.3 A at 240 V (20.8 A at 200 V), with apparent power of 9.2 kVA at 240 V."},{"question":"What communication protocols does ATV21HU55M3X support?","answer":"The ATV21HU55M3X has a built-in 2-wire RS-485 Modbus RTU port (RJ45) at 9600 or 19200 bps. Optional communication cards add BACnet, LonWorks, APOGEE FLN, or METASYS N2."},{"question":"What are the physical dimensions of ATV21HU55M3X?","answer":"The ATV21HU55M3X measures 9.1 in (232 mm) high, 7.09 in (180 mm) wide, and 6.7 in (170 mm) deep."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/ATV21HU55M3X","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/ATV21HU55M3X 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}}