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Schneider Electric ATV950U55N4 — AC Drive (VFD) 480V

ATV950U55N4 Altivar Process ATV900 VSD, 5.5 kW ND, IP55

MPNATV950U55N4
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Schneider Electric Altivar Process ATV900, ATV950U55N4, variable speed drive, 5.5 kW normal duty / 4.0 kW heavy duty, 380...480 V 3-phase, IP55, with braking chopper, integrated EMC filter.

$2,620.80Ref. price · indicative, final on quote
Schneider Electric ATV950U55N4 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

ATV950U55N4 — Identification
ParameterValue
Product typeVariable speed drive
Product range / familyAltivar Process ATV900
ATV950U55N4 — Power & Output
ParameterValue
Motor power (kW)5.5 kW for normal duty 4.0 kW for heavy duty
Continuous output current12.7 A at 4 kHz for normal duty 9.3 A at 4 kHz for heavy duty
ATV950U55N4 — Input / Supply
ParameterValue
Rated supply voltage range380...480 V
Network number of phases3 phases
Internal/auxiliary suppliesExternal 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
ATV950U55N4 — Protection & EMC
ParameterValue
Integrated EMC filter classIntegrated With EMC plate option
EMC immunity testsElectrostatic 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
ATV950U55N4 — Mechanical & Cooling
ParameterValue
Degree of protection (IP)UL type 1
IP degree of protectionIP55
Acoustic noise level52 dB
Assembly / installation styleEnclosed
ATV950U55N4 — Environmental
ParameterValue
Operating ambient temperature-15...40 °C (without derating) 40...50 °C (with derating factor)
Operating altitude1000...4800 m with current derating 1 % per 100 m
Relative humidity5...95 % without condensation conforming to IEC 60068-2-3
Storage / transport temperature-40...70 °C
Pollution degree2
Vibration resistance1.5 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
ATV950U55N4 — Approvals
ParameterValue
Certifications & markingCE
Standards complianceUL 508C IEC 61800-3 IEC 61800-5-1 IEC 61000-3-12 IEC 60721-3 IEC 61508 IEC 13849-1
ATV950U55N4 — Communication
ParameterValue
Communication protocolsEtherNet/IP Modbus TCP Modbus serial

Product details

The ATV950U55N4 is a Schneider Electric Altivar Process ATV900 variable speed drive rated for 5.5 kW normal duty and 4.0 kW heavy duty on a 380...480 V three-phase supply. It delivers 12.7 A continuous output at 4 kHz for normal duty, and 9.3 A at 4 kHz for heavy duty. The IP55 enclosure with integrated EMC filter and braking chopper makes it suited for standalone installation in process environments where dust and hose-down are present.

For heavy-duty cycles (e.g., extruders or crushers with higher starting torque), the drive derates to 9.3 A at the same switching frequency. IP55 means the drive withstands water jets and dust ingress — suitable for washdown areas in food-and-bev or chemical processing without a separate cabinet.

The drive carries CE marking and complies with UL 508C, IEC 61800-3 (EMC), IEC 61800-5-1 (safety), IEC 61000-3-12 (harmonic limits), IEC 60721-3 (environmental), IEC 61508, and IEC 13849-1 (functional safety). Integrated EMC filter meets conducted emission limits for industrial environments without an external filter in most installations.

Integration notes

Wall-mount enclosed assembly with screw terminals for line, motor, DC bus, and control wiring. Control terminals accept 0.5...1.5 mm²; power terminals accept 4...6 mm². Three option slots (A, B, C) accept communication modules for Profibus DP V1, PROFINET, DeviceNet, EtherCAT, CANopen, Ethernet Powerlink, plus digital/analog I/O and relay extension modules. Slot B also accepts encoder interface modules (digital 5/12 V, analog, resolver). Communication ports include EtherNet/IP, Modbus TCP, and Modbus serial. The integrated braking chopper handles dynamic braking without an external module for applications requiring rapid deceleration or overhauling loads.

Frequently asked questions

What is the closest alternative to the ATV950U55N4 in the same family?

Within the ATV900 series, the ATV950U55N4 is the 5.5 kW normal-duty variant at 380-480 V with IP55. The closest sibling is the ATV950U55N4 itself; for a lower IP rating (IP20) the ATV930U55N4 offers the same power ratings in a panel-mount format. No pin-compatible drop-in exists across different power classes.

What are the key supply voltage and control supply specifications?

The drive requires 380...480 V three-phase for the power section. Control logic is powered internally: digital inputs accept 24 V DC (19...30 V), STO and digital input internal supply is 24 V DC (21...27 V), and a 10.5 V DC ±5 % reference supply is provided for a 1 to 10 kOhm potentiometer. Insulation resistance is 1 MOhm at 500 V DC to earth.

What compliance documentation does the ATV950U55N4 carry?

CE marking is on the nameplate. Standards compliance includes 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). The integrated EMC filter meets industrial emission limits per IEC 61800-3.

MPN
ATV950U55N4