ATV950U55N4U

Name: ATV950U55N4U
Brand: Schneider
SKU: ATV950U55N4U

High-performance variable speed drive for industrial applications, ideal for synchronous and asynchronous motors.

Product ModelATV950U55N4U

Product ID29930

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureEmbedded power measurement and energy dashboard for efficient operation.
2
FeatureAdvanced process monitoring and control for precise motor performance.
3
FeatureLow harmonics (THDi < 48% at 80% load or THDi < 5% with low harmonic offer) for reduced energy consumption.
4
FeatureStop and Go function to reduce energy consumption in standby mode.
5
FeatureDual port Ethernet for seamless integration and full process transparency.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Range of Product

Altivar Process ATV900

Device Application

Industrial Application

Product or Component Type

Variable speed drive

Product destination

Asynchronous motorsSynchronous motors

Product Specific Application

Process for industrial

Variant

Standard versionWith braking chopper

Phase

3 phase

Mounting Mode

Wall mount

communication port protocol

Modbus serialEtherNet/IPModbus TCP

[Us] rated supply voltage

380...480 V - 15...10 %

Motor power kW

5.5 kW normal duty4.0 kW heavy duty

Continuous output current

12.7 A 4 kHz normal duty9.3 A 4 kHz heavy duty

EMC filter

IntegratedWith EMC plate option

IP degree of protection

IP55

Degree of protection

UL type 12

option module

Slot A communication module Profibus DP V1Slot A communication module PROFINETSlot A communication module DeviceNetSlot A communication module EtherCATSlot A communication module CANopen daisy chain RJ45Slot A communication module CANopen SUB-D 9Slot A communication module CANopen screw terminalsSlot A/slot B/slot C digital and analog I/O extension moduleSlot A/slot B/slot C output relay extension moduleSlot B 5/12 V digital encoder interface moduleSlot B analog encoder interface moduleSlot B resolver encoder interface module communication module Ethernet Powerlink

Discrete input logic

Positive logic (source) DI1...DI8), < 5 V, > 11 VNegative logic (sink) DI1...DI8), > 16 V, < 10 VPositive logic (source) DI7, DI8), < 0.6 V, > 2.5 VPositive logic (source) STOA, STOB), < 5 V, > 11 V

Asynchronous motor control profile

Optimized torque modeVariable torque standardConstant torque standard

Synchronous motor control profile

Permanent magnet motorSynchronous reluctance motor

Maximum output frequency

599 Hz

Switching frequency

2...16 kHz adjustable4...16 kHz with derating factor

Nominal switching frequency

4 kHz

Line current

10.4 A 380 V normal duty)8.0 A 380 V heavy duty)9.1 A 480 V normal duty)7.2 A 480 V heavy duty)

Apparent power

7.6 kVA 480 V normal duty)6 kVA 480 V heavy duty)

Maximum transient current

15.2 A 60 s normal duty)14 A 60 s heavy duty)

Network Frequency

50-60 Hz

Prospective line Isc

50 kA

Discrete input number

Discrete input type

DI1...DI8 programmable, 24 V DC <= 30 V)3.5 kOhmDI7, DI8 programmable as pulse input 0...30 kHz, 24 V DC <= 30 V)STOA, STOB safe torque off, 24 V DC <= 30 V)> 2.2 kOhm

Discrete output number

Discrete output type

Logic output DQ+ 0...1 kHz <= 30 V DC 100 mAProgrammable as pulse output DQ+ 0...30 kHz <= 30 V DC 20 mALogic output DQ- 0...1 kHz <= 30 V DC 100 mA

Analogue input number

Analogue input type

AI1, AI2, AI3 software-configurable voltage 0...10 V DC 30 kOhm 12 bitsAI1, AI2, AI3 software-configurable current 0...20 mA/4...20 mA 250 Ohm 12 bits

Analogue output number

Analogue output type

Software-configurable voltage AQ1, AQ2 0...10 V DC 470 Ohm 10 bitsSoftware-configurable current AQ1, AQ2 0...20 mA 500 Ohm 10 bits

Relay output number

Relay output type

Configurable relay logic R1 fault relay NO/NC 100000 cyclesConfigurable relay logic R2 sequence relay NO 1000000 cyclesConfigurable relay logic R3 sequence relay NO 1000000 cycles

Maximum switching current

Relay output R1 resistive, cos phi = 1 3 A 250 V ACRelay output R1 resistive, cos phi = 1 3 A 30 V DCRelay output R1 inductive, cos phi = 0.4 7 ms 2 A 250 V ACRelay output R1 inductive, cos phi = 0.4 7 ms 2 A 30 V DCRelay output R2, R3 resistive, cos phi = 1 5 A 250 V ACRelay output R2, R3 resistive, cos phi = 1 5 A 30 V DCRelay output R2, R3 inductive, cos phi = 0.4 7 ms 2 A 250 V ACRelay output R2, R3 inductive, cos phi = 0.4 7 ms 2 A 30 V DC

Minimum switching current

Relay output R1, R2, R3 5 mA 24 V DC

Physical interface

Ethernet2-wire RS 485

Connector Type

2 RJ451 RJ45

Method of access

Slave Modbus TCP

Transmission Rate

10/100 Mbit/s Ethernet IP/Modbus TCP4.8, 9.6, 19.2, 38.4 kbit/s Modbus serial

Transmission frame

RTU

Number of addresses

1...247 Modbus serial

Data format

8 bits, configurable odd, even or no parity Modbus serial

Type of polarization

No impedance Modbus serial

4 quadrant operation possible

True

Acceleration and deceleration ramps

Linear adjustable separately from 0.01...9999 s

Motor slip compensation

AdjustableNot available in permanent magnet motor lawAutomatic whatever the loadCan be suppressed

Braking to standstill

By DC injection

Brake chopper integrated

True

Maximum Input Current per Phase

10.4 A

Maximum output voltage

480.0 V

Relative symmetric network frequency tolerance

5 %

Base load current at high overload

9.3 A

Base load current at low overload

12.7 A

With safety function Safely Limited Speed (SLS)

True

With safety function Safe brake management (SBC/SBT)

True

With safety function Safe Operating Stop (SOS)

False

With safety function Safe Position (SP)

False

With safety function Safe programmable logic

False

With safety function Safe Speed Monitor (SSM)

False

With safety function Safe Stop 1 (SS1)

True

With sft fct Safe Stop 2 (SS2)

False

With safety function Safe torque off (STO)

True

With safety function Safely Limited Position (SLP)

False

With safety function Safe Direction (SDI)

False

Protection type

Thermal protection motorSafe torque off motorMotor phase break motorThermal protection driveSafe torque off driveOverheating driveOvercurrent between output phases and earth driveOverload of output voltage driveShort-circuit protection driveMotor phase break driveOvervoltages on the DC bus driveLine supply overvoltage driveLine supply undervoltage driveLine supply phase loss driveOverspeed driveBreak on the control circuit drive

Quantity per Set

Width

10.4 in (264 mm)

Height

26.7 in (678 mm)

Depth

10.7 in (272 mm)

Net Weight

23.6 lb(US) (10.7 kg)

Electrical connection

Control screw terminal 0.5...1.5 mmÂ² AWG 20...AWG 16DC bus screw terminal 2.5...6 mmÂ² AWG 14...AWG 10Motor screw terminal 4...6 mmÂ² AWG 12...AWG 10Line side screw terminal 4...6 mmÂ² AWG 12...AWG 10

Exchange mode

Half duplex, full duplex, autonegotiation Ethernet IP/Modbus TCP

Supply

External supply for digital inputs 24 V DC 19...30 V), <1.25 mA overload and short-circuit protectionInternal supply for reference potentiometer (1 to 10 kOhm) 10.5 V DC +/- 5 %, <10 mA overload and short-circuit protectionInternal supply for digital inputs and STO 24 V DC 21...27 V), <200 mA overload and short-circuit protection

Local signalling

Local diagnostic 3 LED mono/dual colour)Embedded communication status 5 LED dual colour)Communication module status 2 LED dual colour)Presence of voltage 1 LED red)

Input compatibility

DI1...DI8 discrete input level 1 PLC IEC 61131-2DI7, DI8 pulse input level 1 PLC IEC 65A-68STOA, STOB discrete input level 1 PLC IEC 61131-2

Sampling duration

2 ms +/- 0.5 ms DI1...DI8) - discrete input5 ms +/- 1 ms DI7, DI8) - pulse input1 ms +/- 1 ms AI1, AI2, AI3) - analog input5 ms +/- 1 ms AQ1, AQ2) - analog output

Accuracy

+/- 0.6 % AI1, AI2, AI3 for a temperature variation 60 °C analog input+/- 1 % AQ1, AQ2 for a temperature variation 60 °C analog output

Linearity error

AI1, AI2, AI3 +/- 0.15 % of maximum value analog inputAQ1, AQ2 +/- 0.2 % analog output

Refresh time

Relay output R1, R2, R3)5 ms +/- 0.5 ms)

Isolation

Between power and control terminals

Operating altitude

<= 3280.84 ft (1000 m) without derating1000...4800 m with current derating 1 % per 100 m

Operating position

Vertical +/- 10 degree

Product Certifications

Bureau VeritasATEX INERISABSCSATÃVULDNV-GL

marking

Standards

UL 508CIEC 61800-3IEC 61800-5-1IEC 61000-3-12IEC 60721-3IEC 61508IEC 13849-1

Maximum THDI

<48 % full load IEC 61000-3-12

Assembly style

Enclosed

Electromagnetic compatibility

Electrostatic discharge immunity test level 3 IEC 61000-4-2Radiated radio-frequency electromagnetic field immunity test level 3 IEC 61000-4-3Electrical fast transient/burst immunity test level 4 IEC 61000-4-41.2/50 Âµs - 8/20 Âµs surge immunity test level 3 IEC 61000-4-5Conducted radio-frequency immunity test level 3 IEC 61000-4-6

Environmental class (during operation)

Class 3C3 according to IEC 60721-3-3Class 3S3 according to IEC 60721-3-3

Maximum acceleration under shock impact (during operation)

150 m/sÂ² at 11 ms

Maximum acceleration under vibrational stress (during operation)

10 m/sÂ² at 13...200 Hz

Maximum deflection under vibratory load (during operation)

1.5 mm at 2...13 Hz

Permitted relative humidity (during operation)

Class 3K5 according to EN 60721-3

Overvoltage category

III

Regulation loop

Adjustable PID regulator

Insulation resistance

> 1 MOhm 500 V DC for 1 minute to earth

Noise level

52 dB

Vibration resistance

1.5 mm peak to peak 2...13 Hz)IEC 60068-2-61 gn 13...200 Hz)IEC 60068-2-6

Shock resistance

15 gn 11 ms IEC 60068-2-27

Environmental characteristic

Chemical pollution resistance class 3C3 IEC 60721-3-3Dust pollution resistance class 3S3 IEC 60721-3-3

Relative humidity

5...95 % without condensation IEC 60068-2-3

Ambient air temperature for operation

5...104 °F (-15...40 °C) without derating)104...122 °F (40...50 °C) with derating factor)

Pollution degree

Ambient air transport temperature

-40...158 °F (-40...70 °C)

Ambient Air Temperature for Storage

-40...158 °F (-40...70 °C)