ATV320U55N4B

Name: ATV320U55N4B
Brand: Schneider
SKU: ATV320U55N4B

Optimize your ventilation and pumping applications with the Altivar Machine ATV320U55N4B, offering up to 30% energy savings and a compact design.

Product ModelATV320U55N4B

Product ID37181

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureOptimized for ventilation and pumping applications, offering up to 30% energy savings.
2
Compact design with dimensions5.9 in x 12.1 in x 9.1 in (150 mm x 308 mm x 232 mm).
3
Net weight9.7 lb (4.4 kg) for easy handling and installation.
4
FeatureOperates in a vertical position with a +/- 10 degree tolerance for flexibility in installation.
5
FeatureDesigned for reliability and efficiency, reducing downtime and maintenance costs.

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 Machine ATV320

Product or Component Type

Variable speed drive

Product Specific Application

Complex machines

Variant

Standard version

Format of the drive

Book

Mounting Mode

Wall mount

communication port protocol

Modbus serialCANopen

Option card

communication module, CANopen communication module, EtherCAT communication module, Profibus DP V1 communication module, PROFINET communication module, Ethernet Powerlink communication module, EtherNet/IP communication module, DeviceNet

[Us] rated supply voltage

380...500 V - 15...10 %

Nominal output current

14.3 A

Motor power kW

5.5 kW heavy duty

EMC filter

Class C2 EMC filter integrated

IP degree of protection

IP20

Discrete input number

Discrete input type

STO safe torque off, 24 V DC1.5 kOhmDI1...DI6 logic inputs, 24 V DC 30 V)DI5 programmable as pulse input 0...30 kHz, 24 V DC 30 V)

Discrete input logic

Positive logic (source)Negative logic (sink)

Discrete output number

Discrete output type

Open collector DQ+ 0...1 kHz 30 V DC 100 mAOpen collector DQ- 0...1 kHz 30 V DC 100 mA

Analogue input number

Analogue input type

AI1 voltage 0...10 V DC 30 kOhm 10 bitsAI2 bipolar differential voltage +/- 10 V DC 30 kOhm 10 bitsAI3 current 0...20 mA (or 4-20 mA, x-20 mA, 20-x mA or other patterns by configuration) 250 Ohm 10 bits

Analogue output number

Analogue output type

Software-configurable current AQ1 0...20 mA 800 Ohm 10 bitsSoftware-configurable voltage AQ1 0...10 V DC 470 Ohm 10 bits

Relay output type

Configurable relay logic R1A 1 NO 100000 cyclesConfigurable relay logic R1B 1 NC 100000 cyclesConfigurable relay logic R1CConfigurable relay logic R2A 1 NO 100000 cyclesConfigurable relay logic R2C

Maximum switching current

Relay output R1A, R1B, R1C resistive, cos phi = 1 3 A 250 V ACRelay output R1A, R1B, R1C resistive, cos phi = 1 3 A 30 V DCRelay output R1A, R1B, R1C, R2A, R2C inductive, cos phi = 0.4 7 ms 2 A 250 V ACRelay output R1A, R1B, R1C, R2A, R2C inductive, cos phi = 0.4 7 ms 2 A 30 V DCRelay output R2A, R2C resistive, cos phi = 1 5 A 250 V ACRelay output R2A, R2C resistive, cos phi = 1 5 A 30 V DC

Minimum switching current

Relay output R1A, R1B, R1C, R2A, R2C 5 mA 24 V DC

Method of access

Slave CANopen

4 quadrant operation possible

True

Asynchronous motor control profile

Voltage/frequency ratio, 5 pointsFlux vector control without sensor, standardVoltage/frequency ratio - Energy Saving, quadratic U/fFlux vector control without sensor - Energy SavingVoltage/frequency ratio, 2 points

Synchronous motor control profile

Vector control without sensor

Transient overtorque

170...200 % of nominal motor torque

Maximum output frequency

0.599 kHz

Acceleration and deceleration ramps

LinearUSCUSRamp switchingAcceleration/deceleration ramp adaptationAcceleration/deceleration automatic stop with DC injection

Motor slip compensation

Automatic whatever the loadAdjustable 0...300 %Not available in voltage/frequency ratio (2 or 5 points)

Switching frequency

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

Nominal switching frequency

4 kHz

Braking to standstill

By DC injection

Brake chopper integrated

True

Line current

20.7 A 380 V heavy duty)14.5 A 500 V heavy duty)

Maximum Input Current per Phase

20.7 A

Maximum output voltage

500 V

Apparent power

12.6 kVA 500 V heavy duty)

Network Frequency

50-60 Hz

Relative symmetric network frequency tolerance

5 %

Prospective line Isc

22 kA

Base load current at high overload

14.3 A

Power dissipation in W

Fan 195.0 W 380 V 4 kHz

With safety function Safely Limited Speed (SLS)

True

With safety function Safe brake management (SBC/SBT)

False

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

Input phase breaks driveOvercurrent between output phases and earth driveOverheating protection driveShort-circuit between motor phases driveThermal protection drive

Width

5.9 in (150 mm)

Height

12.1 in (308.0 mm)

Depth

9.1 in (232.0 mm)

Net Weight

9.7 lb(US) (4.4 kg)

Operating position

Vertical +/- 10 degree

Product Certifications

CEATEXNOMGOSTEACRCMKC

Marking

CEATEXULCSAEACRCM

Standards

IEC 61800-5-1

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 61000-4-6Voltage dips and interruptions immunity test IEC 61000-4-11

Environmental class (during operation)

Class 3C3 according to IEC 60721-3-3Class 3S2 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

Volume of cooling air

15850.6 Gal/hr(US) (60 m3/h)

Overvoltage category

III

Regulation loop

Adjustable PID regulator

Speed accuracy

+/- 10 % of nominal slip 0.2 Tn to Tn

Pollution degree

Ambient air transport temperature

-13...158 °F (-25...70 °C)

Ambient air temperature for operation

14...122 °F (-10...50 °C) without derating122...140 °F (50...60 °C) with derating factor

Ambient Air Temperature for Storage

-13...158 °F (-25...70 °C)