The ATV21WD30N4 is a 30kW, 40HP variable speed drive designed for HVAC, pumps, and compressors. It features an EMC filter class A and IP54 enclosure.
Product ModelATV21WD30N4
Product ID33645
Stock on Request
Last updated: 8/29/2026
Key Features
1
FeatureIdeal for HVAC, pumps, and compressors.
2
FeatureFeatures an EMC filter class A for reduced electromagnetic interference.
3
FeatureEnclosed in IP54 for enhanced protection against dust and water.
4
FeatureSupports 3-phase operation with a voltage rating of 400 to 480 VAC.
5
FeatureIncludes an LED display for easy monitoring and control.
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 21
Product or Component Type
Variable speed drive
Product destination
Asynchronous motors
Product Specific Application
Pumps and fans in HVAC
Assembly style
With heat sink
Component name
ATV21
EMC filter
Class A EMC filter integrated
power supply voltage
380...480 V - 15...10 %
Phase
3 phase
Motor power kW
30 kW
Maximum Horse Power Rating
40 hp
Line current
44.7 A 480 V56.7 A 380 V
Speed range
1...10
Transient overtorque
120 % of nominal motor torque +/- 10 % 60 s
Asynchronous motor control profile
Constant voltage/frequency ratio with automatic IR compensationEnergy saving ratioQuadratic voltage/frequency ratioCurrent flux vector control (FVC) without speed feedbackConstant voltage/frequency ratio
communication port protocol
Modbus
Type of polarization
No impedance
IP degree of protection
IP54 EN 60530IP54 EN 61800-5-2IP54 IEC 60529IP54 IEC 61800-5-1
Internal supply 24 V DC 21...27 V), <200 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 protection
Analogue input number
2
Analogue input type
VIA switch-configurable current 0...20 mA 242 Ohm 11 bitsVIA switch-configurable voltage 0...10 V DC 24 V max 30000 Ohm 11 bitsVIB configurable PTC probe 0...6 probes 1500 OhmVIB configurable voltage 0...10 V DC 24 V max 30000 Ohm 11 bits
Sampling duration
F 2 ms +/- 0.5 ms discreteR 2 ms +/- 0.5 ms discreteRES 2 ms +/- 0.5 ms discreteVIA 2 ms +/- 0.5 ms analogVIB 2 ms +/- 0.5 ms analog
Response time
FLA, FLC 7 ms +/- 0.5 ms discreteFLB, FLC 7 ms +/- 0.5 ms discreteFM 2 ms +/- 0.5 ms analogRY, RC 7 ms +/- 0.5 ms discrete
Accuracy
+/- 1 % FM) for a temperature variation 60 °C+/- 0.6 % VIA) for a temperature variation 60 °C+/- 0.6 % VIB) for a temperature variation 60 °C
Linearity error
FM +/- 0.2 % outputVIA +/- 0.15 % of maximum value inputVIB +/- 0.15 % of maximum value input
Analogue output number
1
Analogue output type
FM switch-configurable current 0...20 mA 500 Ohm 10 bitsFM switch-configurable voltage 0...10 V DC 470 Ohm 10 bits
2 A 250 V AC inductive cos phi = 0.4 L/R = 7 ms FL, R)2 A 30 V DC inductive cos phi = 0.4 L/R = 7 ms FL, R)5 A 250 V AC resistive cos phi = 1 L/R = 0 ms FL, R)5 A 30 V DC resistive cos phi = 1 L/R = 0 ms FL, R)
Discrete input type
F programmable 24 V DC level 1 PLC 3500 OhmR programmable 24 V DC level 1 PLC 3500 OhmRES programmable 24 V DC level 1 PLC 3500 Ohm
Automatic based on the loadLinear adjustable separately from 0.01 to 3200 s
Braking to standstill
By DC injection
Protection type
Against input phase loss driveBreak on the control circuit driveInput phase breaks driveLine supply overvoltage and undervoltage driveLine supply undervoltage driveOvercurrent between output phases and earth driveOverheating protection driveOvervoltages on the DC bus driveShort-circuit between motor phases driveThermal power stage driveMotor phase break motorThermal protection motorWith PTC probes motorAgainst exceeding limit speed drive
Insulation resistance
>= 1 mOhm 500 V DC for 1 minute
Frequency resolution
Analog input 0.024/50 HzDisplay unit 0.1 Hz
Connector Type
1 RJ45
Physical interface
2-wire RS 485
Transmission frame
RTU
Transmission Rate
9600 bps or 19200 bps
Data format
8 bits, 1 stop, odd even or no configurable parity
Number of addresses
1...247
Communication Service
Time out setting from 0.1 to 100 sWrite multiple registers (16) 2 words maximumRead holding registers (03) 2 words maximumRead device identification (43)Monitoring inhibitableWrite single register (06)
marking
CE
Operating position
Vertical +/- 10 degree
Height
28.3 in (720 mm)
Width
11.2 in (284 mm)
Depth
12.4 in (315 mm)
Net Weight
109.1 lb(US) (49.5 kg)
Noise level
59.9 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 µs - 8/20 µs 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