ATV71HD37N4

Name: ATV71HD37N4
Brand: Schneider
SKU: ATV71HD37N4

The Altivar 71 ATV71HD37N4 is a high-efficiency variable speed drive designed for industrial applications, offering reliable performance and easy operation.

Product ModelATV71HD37N4

Product ID29577

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureHigh efficiency and reliability for industrial applications.
2
FeatureEasy operation with integrated display terminal and graphic display unit.
3
FeatureWide range of motor control configurations for synchronous and asynchronous motors.
4
FeatureEnhanced safety features with automatic fault detection and protection.
5
FeatureFlexible control options with 2-wire or 3-wire control configurations.

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 71

Product or Component Type

Variable speed drive

Product Specific Application

Complex, high-power machines

Component name

ATV71

Motor power kW

37 kW, 3 phase 380...480 V

Maximum Horse Power Rating

50 hp, 3 phase 380...480 V

Maximum motor cable length

328.08 ft (100 m) shielded cable656.2 ft (200 m) unshielded cable

power supply voltage

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

Phase

3 phase

Line current

69 A 480 V 3 phase 37 kW / 50 hp84 A 380 V 3 phase 37 kW / 50 hp

EMC filter

Integrated

Assembly style

With heat sink

Apparent power

55.3 kVA 380 V 3 phase 37 kW / 50 hp

Prospective line Isc

22 kA 3 phase

Nominal output current

65 A 2.5 kHz 460 V 3 phase 37 kW / 50 hp79 A 2.5 kHz 380 V 3 phase 37 kW / 50 hp

Maximum transient current

130 A 2 s 3 phase 37 kW / 50 hp118.5 A 60 s 3 phase 37 kW / 50 hp

Output frequency

0.1...599 Hz

Nominal switching frequency

2.5 kHz

Switching frequency

1...16 kHz adjustable2.5...16 kHz with derating factor

Asynchronous motor control profile

ENA (Energy adaptation) system for unbalanced loadsVoltage/frequency ratio (2 or 5 points)Flux vector control (FVC) with sensor (current vector)Sensorless flux vector control (SFVC) (voltage or current vector)

Type of polarization

No impedance Modbus

Product destination

Asynchronous motorsSynchronous motors

power supply voltage limits

323...528 V

power supply frequency

50...60 Hz - 5...5 %

power supply frequency limits

47.5...63 Hz

Speed range

1...100 asynchronous motor in open-loop mode, without speed feedback1...1000 asynchronous motor in closed-loop mode with encoder feedback1...50 synchronous motor in open-loop mode, without speed feedback

Speed accuracy

+/- 0.01 % of nominal speed in closed-loop mode with encoder feedback 0.2 Tn to Tn+/- 10 % of nominal slip without speed feedback 0.2 Tn to Tn

Torque accuracy

+/- 15 % in open-loop mode, without speed feedback+/- 5 % in closed-loop mode with encoder feedback

Transient overtorque

170 % +/- 10 % 60 s every 10 minutes220 % +/- 10 % 2 s

Braking torque

<= 150 % with braking or hoist resistor30 % without braking resistor

Synchronous motor control profile

Vector control without speed feedback

Regulation loop

Adjustable PI regulator

Motor slip compensation

Automatic whatever the loadSuppressableNot available in voltage/frequency ratio (2 or 5 points)Adjustable

diagnostic

for drive voltage 1 LED (red)

Output voltage

<= power supply voltage

Insulation

Electrical between power and control

type of cable for mounting in an enclosure

With a NEMA Type1 kit 3 UL 508 cable 104 °F (40 °C), copper 75 °C / PVCWith an IP21 or an IP31 kit 3 IEC cable 104 °F (40 °C), copper 70 °C / PVCWithout mounting kit 1 IEC cable 113 °F (45 °C), copper 70 °C / PVCWithout mounting kit 1 IEC cable 113 °F (45 °C), copper 90 °C / XLPE/EPR

Electrical connection

Terminal 2.5 mmÂ², AWG 14 AI1-/AI1+, AI2, AO1, R1A, R1B, R1C, R2A, R2B, LI1...LI6, PWR)Terminal 50 mmÂ², AWG 1/0 L1/R, L2/S, L3/T, U/T1, V/T2, W/T3, PC/-, PO, PA/+, PA, PB)

Tightening torque

5.3 lbf.in (0.6 N.m) AI1-/AI1+, AI2, AO1, R1A, R1B, R1C, R2A, R2B, LI1...LI6, PWR)106.2 lbf.in (12 N.m), 102.2 lb.in L1/R, L2/S, L3/T, U/T1, V/T2, W/T3, PC/-, PO, PA/+, PA, PB)

Supply

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

Analogue input number

Analogue input type

AI1-/Al1+ bipolar differential voltage +/- 10 V DC 24 V max 11 bits + signAI2 software-configurable current 0...20 mA 242 Ohm 11 bitsAI2 software-configurable voltage 0...10 V DC 24 V max 30000 Ohm 11 bits

input sampling time

2 ms +/- 0.5 ms AI1-/Al1+) - analog2 ms +/- 0.5 ms Al2) - analog2 ms +/- 0.5 ms LI1...LI5) - discrete2 ms +/- 0.5 ms LI6)if configured as logic input - discrete

Response time

<= 100 ms in STO (Safe Torque Off)AO1 2 ms +/- 0.5 ms analogR1A, R1B, R1C 7 ms +/- 0.5 ms discreteR2A, R2B 7 ms +/- 0.5 ms discrete

absolute accuracy precision

+/- 0.6 % AI1-/Al1+) for a temperature variation 60 °C+/- 0.6 % AI2) for a temperature variation 60 °C+/- 1 % AO1) for a temperature variation 60 °C

Linearity error

+/- 0.15 % of maximum value AI1-/Al1+, AI2)+/- 0.2 % AO1)

Analogue output number

Analogue output type

AO1 software-configurable logic output 10 V 20 mAAO1 software-configurable current 0...20 mA 500 Ohm 10 bitsAO1 software-configurable voltage 0...10 V DC 470 Ohm 10 bits

Discrete output number

Discrete output type

Configurable relay logic R1A, R1B, R1C) NO/NC - 100000 cyclesConfigurable relay logic R2A, R2B) NO - 100000 cycles

Minimum switching current

3 mA 24 V DC configurable relay logic

Maximum switching current

R1, R2 2 A 250 V AC inductive, cos phi = 0.4R1, R2 2 A 30 V DC inductive, cos phi = 0.4R1, R2 5 A 250 V AC resistive, cos phi = 1R1, R2 5 A 30 V DC resistive, cos phi = 1

Discrete input number

Discrete input type

LI1...LI5 programmable 24 V DC level 1 PLC 3500 OhmLI6 switch-configurable 24 V DC level 1 PLC 3500 OhmLI6 switch-configurable PTC probe 0...6 1500 OhmPWR safety input 24 V DC 1500 Ohm ISO 13849-1 level d

Discrete input logic

Negative logic (sink) LI1...LI5), > 16 V, < 10 VPositive logic (source) LI1...LI5), < 5 V, > 11 VNegative logic (sink) LI6)if configured as logic input, > 16 V, < 10 VPositive logic (source) LI6)if configured as logic input, < 5 V, > 11 V

Acceleration and deceleration ramps

Automatic adaptation of ramp if braking capacity exceeded, by using resistorLinear adjustable separately from 0.01 to 9000 sS, U or customized

Braking to standstill

By DC injection

Protection type

Against exceeding limit speed driveAgainst input phase loss driveBreak on the control circuit driveInput phase breaks driveLine supply overvoltage driveLine supply undervoltage driveOvercurrent between output phases and earth driveOverheating protection driveOvervoltages on the DC bus driveShort-circuit between motor phases driveThermal protection driveMotor phase break motorPower removal motorThermal protection motor

Insulation resistance

> 1 mOhm 500 V DC for 1 minute to earth

Frequency resolution

Analog input 0.024/50 HzDisplay unit 0.1 Hz

communication port protocol

ModbusCANopen

Connector type

1 RJ45 on front face)Modbus1 RJ45 on terminal)ModbusMale SUB-D 9 on RJ45CANopen

Physical interface

2-wire RS 485 Modbus

Transmission frame

RTU Modbus

Transmission rate

4800 bps, 9600 bps, 19200 bps, 38.4 Kbps Modbus on terminal9600 bps, 19200 bps Modbus on front face20 kbps, 50 kbps, 125 kbps, 250 kbps, 500 kbps, 1 Mbps CANopen

Data format

8 bits, 1 stop, even parity Modbus on front face8 bits, odd even or no configurable parity Modbus on terminal

Number of addresses

1...127 CANopen1...247 Modbus

Method of access

Slave CANopen

marking

Operating position

Vertical +/- 10 degree

Height

21.7 in (550 mm)

Depth

10.5 in (266 mm)

Width

9.4 in (240 mm)

Net Weight

81.6 lb(US) (37 kg)

Functionality

Full

Specific application

Other applications

Option card

Communication card CC-LinkController inside programmable cardCommunication card DeviceNetCommunication card EtherNet/IPCommunication card FipioI/O extension cardCommunication card Interbus-SInterface card for encoderCommunication card Modbus PlusCommunication card Modbus TCPCommunication card Modbus/Uni-TelwayOverhead crane cardCommunication card Profibus DPCommunication card Profibus DP V1

Noise level

64 dB 86/188/EEC

Dielectric strength

3535 V DC between earth and power terminals5092 V DC between control and power terminals

Electromagnetic compatibility

1.2/50 Âµs - 8/20 Âµs surge immunity test level 3 IEC 61000-4-5Conducted radio-frequency immunity test level 3 IEC 61000-4-6Electrical fast transient/burst immunity test level 4 IEC 61000-4-4Electrostatic discharge immunity test level 3 IEC 61000-4-2Radiated radio-frequency electromagnetic field immunity test level 3 IEC 61000-4-3Voltage dips and interruptions immunity test IEC 61000-4-11

Standards

IEC 61800-5-1IEC 61800-3IEC 61800-3 environments 1 category C3IEC 61800-3 environments 2 category C3EN 55011 class A group 2IEC 60721-3-3 class 3S2IEC 60721-3-3 class 3C1UL Type 1

Product Certifications

ULGOSTCSAC-tickNOM 117

Pollution degree

2 IEC 61800-5-13 UL 840

IP degree of protection

IP20

Vibration resistance

1 gn 13...200 Hz)IEC 60068-2-61.5 mm peak to peak 3...13 Hz)IEC 60068-2-6

Shock resistance

15 gn 11 ms IEC 60068-2-27

Relative humidity

5...95 % without condensation IEC 60068-2-35...95 % without dripping water IEC 60068-2-3

Ambient air temperature for operation

14...122 °F (-10...50 °C) without derating)

Ambient Air Temperature for Storage

-13...158 °F (-25...70 °C)

Operating altitude

<= 3280.84 ft (1000 m) without derating3280.84...9842.52 ft (1000...3000 m) with current derating 1 % per 100 m