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Schneider Electric ATV950D55N4 — AC Drive (VFD) 480V

Schneider ATV950D55N4 AC Drive, 55 kW ND, 106 A, 380-480 V

MPNATV950D55N4
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Schneider Electric Altivar Process ATV900 series, ATV950D55N4 variable speed drive, 55.0 kW normal duty / 45.0 kW heavy duty, 106 A nominal output current, 380...480 V three-phase supply, IP55 enclosure, standard version with braking chopper.

$10,088.00Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ATV950D55N4 — Identification
ParameterValue
Product typeVariable speed drive
Product range / familyAltivar Process ATV900
ATV950D55N4 — Power & Output
ParameterValue
Motor power (kW)55.0 kW for normal duty 45.0 kW for heavy duty
Continuous output current106 A at 2.5 kHz for normal duty 88 A at 2.5 kHz for heavy duty
ATV950D55N4 — 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
ATV950D55N4 — 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
ATV950D55N4 — Mechanical & Cooling
ParameterValue
Degree of protection (IP)UL type 1
IP degree of protectionIP55
Acoustic noise level69.9 dB
Assembly / installation styleEnclosed
ATV950D55N4 — 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
ATV950D55N4 — 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
ATV950D55N4 — Communication
ParameterValue
Communication protocolsEtherNet/IP Modbus TCP Modbus serial

Product details

Drive rating and duty selection

The ATV950D55N4 is a 55 kW normal-duty / 45 kW heavy-duty variable speed drive from the Altivar Process ATV900 series, designed for synchronous and asynchronous motors in industrial process applications. Nominal output current is 106 A at 2.5 kHz switching frequency for normal duty; heavy-duty continuous output is 88 A at the same carrier. The 380...480 V three-phase supply range covers common global industrial voltages without a transformer. The integrated braking chopper (standard variant) allows dynamic braking with an external resistor, useful for high-inertia loads or rapid deceleration cycles where DC-bus overvoltage would otherwise trip the drive.

IP55 degree of protection and UL Type 1 enclosure mean the drive can be wall-mounted in locations subject to hose-down or dust, without requiring a separate cabinet in many indoor industrial settings. Operating altitude is 1000...4800 m with a 1 % current derating per 100 m above 1000 m — factor this into the installation if the drive sits at elevation. Ambient relative humidity range is 5...95 % non-condensing. Chemical pollution resistance class 3C3 and dust pollution resistance class 3S3 per IEC 60721-3-3 confirm suitability for corrosive or dusty environments typical in wastewater, mining, or chemical processing.

Control wiring and fieldbus options

Control terminals are screw-type, accepting 0.5...1.5 mm² (AWG 20...16). The drive provides an internal 24 V DC supply for digital inputs and STO (21...27 V), plus a 10.5 V DC reference for an external potentiometer. Three option module slots (A, B, C) accept fieldbus adapters for Profibus DP V1, PROFINET, DeviceNet, EtherCAT, CANopen, Ethernet Powerlink, and Ethernet IP / Modbus TCP. Slot B also supports digital or analog encoder interfaces and resolver feedback. Built-in Modbus serial and Ethernet IP / Modbus TCP ports are standard; the drive auto-negotiates half/full duplex on the Ethernet link. Transmission rates include 10/100 Mbit/s for Ethernet and 9600/19200 bit/s for serial.

Compliance and lifecycle status

The drive carries CE marking and complies with UL 508C, IEC 61800-3 (EMC), IEC 61800-5-1 (safety), IEC 61508, and IEC 13849-1 — covering functional safety up to SIL capability for the STO circuit. Electromagnetic compatibility includes immunity test levels 3 and 4 per IEC 61000-4-2 through -4-6, and total harmonic current distortion (THDI) below 48 % at 80...100 % load per IEC 61000-3-12.

Frequently asked questions

What compliance documentation does Schneider Electric provide for ATV950D55N4?

The drive is CE marked and complies with UL 508C, IEC 61800-3, IEC 61800-5-1, IEC 61000-3-12, IEC 60721-3, IEC 61508, and IEC 13849-1. These cover EMC, electrical safety, functional safety, and environmental resistance.

MPN
ATV950D55N4