{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ATV950U40N4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"ATV950U40N4","canonicalUrl":"https://aoctrl.com/schneider/ATV950U40N4","factsUrl":"https://aoctrl.com/api/mcp/products/ATV950U40N4","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Altivar Process ATV900 series, ATV950U40N4 variable speed drive, 4.0 kW normal duty / 3.0 kW heavy duty, 380...480 V, IP55, with integrated braking chopper.","salesMarkdown":"The ATV950U40N4 is a current-production Altivar Process ATV900 drive sized for a 4.0 kW induction motor on 380...480 V three-phase supply for normal duty, or 3.0 kW for heavy-duty cycles. Continuous output current is 9.3 A at 4 kHz switching frequency for normal duty, 7.2 A at 4 kHz for heavy duty. The integrated braking chopper handles dynamic braking for vertical loads or short deceleration profiles without an external resistor — though a braking resistor must still be added at the DC bus terminals. IP55 enclosure and UL Type 1 rating suit this drive for washdown or dusty environments without a separate cabinet. Wall-mount orientation vertical ±10°, with a 1000...4800 m altitude range and 1 % current derating per 100 m above 1000 m. ## Fieldbus and I/O architecture Three option slots (A, B, C) accept communication modules for PROFIBUS DP V1, PROFINET, DeviceNet, EtherCAT, CANopen (daisy-chain RJ45, SUB-D 9, or screw terminals), and Ethernet Powerlink. Digital and analog I/O extension modules or output relay extension modules fit any slot. Slot B also accepts 5/12 V digital encoder, analog encoder, or resolver encoder interface modules. Base communication ports support Modbus TCP, Modbus serial, and EtherNet/IP at 10/100 Mbit/s, with autonegotiation half/full duplex. Control wiring uses screw terminals accepting 0.5...1.5 mm² (AWG 20...16). DC bus, motor, and line-side terminals accept 2.5...6 mm² (AWG 14...10) for motor and line, 2.5...6 mm² (AWG 14...10) for DC bus. External 24 V DC supply for digital inputs (19...30 V), internal 24 V DC for digital inputs and STO (21...27 V), and a 10.5 V DC ±5 % reference for a 1 to 10 kΩ potentiometer. Listed to UL 508C, IEC 61800-3 (EMC), IEC 61800-5-1 (safety), IEC 61000-3-12 (harmonic), IEC 60721-3 (environmental), IEC 61508 and IEC 13849-1 (functional safety). CE marked. Integrated EMC filter meets conducted emissions limits; an EMC plate option is available for higher performance. Total harmonic current distortion (THDI) is less than 48 % at full load per IEC 61000-3-12. Chemical pollution resistance class 3C3 and dust pollution resistance class 3S3 per IEC 60721-3-3.","metaTitle":"Schneider Electric ATV950U40N4 Altivar Process Drive, 4.0 kW","metaDescription":"ATV950U40N4 variable speed drive, 4.0 kW normal duty, 3.0 kW heavy duty, 380-480 V, IP55, integrated braking chopper, Modbus TCP/EtherNet/IP. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["AC Drive (VFD) 480V"],"specifications":{"Supply":"External supply for digital inputs: 24 V DC (19...30 V), Internal supply for reference potentiometer (1 to 10 kOhm): 10.5 V DC +/- 5 %, Internal supply for digital inputs and STO: 24 V DC (21...27 V), 1 MOhm 500 V DC for 1 minute to earth","Marking":"CE","Variant":"Standard version With braking chopper","Standards":"UL 508C IEC 61800-3 IEC 61800-5-1 IEC 61000-3-12 IEC 60721-3 IEC 61508 IEC 13849-1","EMC filter":"Integrated With EMC plate option","Data format":"8 bits, configurable odd, even or no parity","Noise level":"52 dB","Maximum THDI":"<48 % full load conforming to IEC 61000-3-12","Exchange mode":"Half duplex, full duplex, autonegotiation Ethernet IP/Modbus TCP","Mounting mode":"Wall mount","Option Module":"Slot A: communication module for Profibus DP V1 Slot A: communication module for PROFINET Slot A: communication module for DeviceNet Slot A: communication module for EtherCAT Slot A: communication module for CANopen daisy chain RJ45 Slot A: communication module for CANopen SUB-D 9 Slot A: communication module for CANopen screw terminals Slot A/slot B/slot C: digital and analog I/O extension module Slot A/slot B/slot C: output relay extension module Slot B: 5/12 V digital encoder interface module Slot B: analog encoder interface module Slot B: resolver encoder interface module communication module for Ethernet Powerlink","Assembly style":"Enclosed","Motor power kW":"4.0 kW for normal duty 3.0 kW for heavy duty","Regulation loop":"Adjustable PID regulator","lifecycle_stage":"current","Pollution degree":"2","Range of product":"Altivar Process ATV900","Shock resistance":"15 gn for 11 ms conforming to IEC 60068-2-27","Relative humidity":"5...95 % without condensation conforming to IEC 60068-2-3","Transmission rate":"10, 100 Mbits 4.8 kbps 9600 bit/s 19200 bit/s","Device application":"Industrial application","Operating altitude":"1000...4800 m with current derating 1 % per 100 m","Operating position":"Vertical +/- 10 degree","Number of addresses":"1...247","Product destination":"Synchronous motors Asynchronous motors","Degree of protection":"UL type 1","Overvoltage category":"III","Type of polarization":"No impedance","Vibration resistance":"1.5 mm peak to peak (f= 2...13 Hz) conforming to IEC 60068-2-6 1 gn (f= 13...200 Hz) conforming to IEC 60068-2-6","Electrical connection":"Control: screw terminal 0.5...1.5 mm²/AWG 20...AWG 16 DC bus: screw terminal 2.5...6 mm²/AWG 14...AWG 10 Motor: screw terminal 4...6 mm²/AWG 12...AWG 10 Line side: screw terminal 4...6 mm²/AWG 12...AWG 10","Nominal Output Current":"9.3 A","IP degree of protection":"IP55","Network number of phases":"3 phases","Continuous output current":"9.3 A at 4 kHz for normal duty 7.2 A at 4 kHz for heavy duty","Product or component type":"Variable speed drive","[Us] rated supply voltage":"380...480 V","Communication port protocol":"Modbus TCP Modbus serial EtherNet/IP","Environmental characteristic":"Chemical pollution resistance class 3C3 conforming to IEC 60721-3-3 Dust pollution resistance class 3S3 conforming to IEC 60721-3-3","Product specific application":"Process for industrial","Electromagnetic compatibility":"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 Electrical fast transient/burst immunity test level 4 conforming to IEC 61000-4-4 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","Ambient air transport temperature":"-40...70 °C","Ambient air temperature for storage":"-40...70 °C","Ambient air temperature for operation":"-15...40 °C (without derating) 40...50 °C (with derating factor)","Environmental class (during operation)":"Class 3C3 according to IEC 60721-3-3 Class 3S3 according to IEC 60721-3-3","Relative symmetric mains voltage tolerance":"10 %","Permitted relative humidity (during operation)":"Class 3K5 according to EN 60721-3","Relative symmetric network frequency tolerance":"5 %","Maximum acceleration under shock impact (during operation)":"150 m/s² at 11 ms","Maximum deflection under vibratory load (during operation)":"1.5 mm at 2...13 Hz","Maximum acceleration under vibrational stress (during operation)":"10 m/s² at 13...200 Hz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2,217.28","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bf6342a74e39980a1453630ce075ac76.pdf","sourceUrl":"https://www.se.com/ae/en/product/ATV950U40N4/variable-speed-drive-altivar-process-atv900-atv950-4kw-400-to-480v-with-braking-unit-ip55/","alternativesUrl":"https://aoctrl.com/api/mcp/products/ATV950U40N4/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the ATV950U40N4?","answer":"Motor power: 4.0 kW normal duty, 3.0 kW heavy duty. Supply voltage: 380...480 V three-phase. Continuous output current: 9.3 A at 4 kHz normal duty, 7.2 A at 4 kHz heavy duty. IP55 enclosure, integrated braking chopper."},{"question":"What communication protocols does the ATV950U40N4 support?","answer":"Base ports support Modbus TCP, Modbus serial, and EtherNet/IP. Option slots accept modules for PROFIBUS DP V1, PROFINET, DeviceNet, EtherCAT, CANopen, and Ethernet Powerlink."},{"question":"What compliance certifications does the ATV950U40N4 carry?","answer":"CE marked. Listed to UL 508C, IEC 61800-3, IEC 61800-5-1, IEC 61000-3-12, IEC 60721-3, IEC 61508, and IEC 13849-1."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/ATV950U40N4","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/ATV950U40N4 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}}