VFD for Compressors: Selection Guide
How to select and size a VFD for screw, reciprocating and centrifugal compressors, covering overload rating, turndown limits and energy savings.
- Part number
- ATV340D18N4
Critical stock
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· From Türkiye
0
- UL
- CSA
- EAC
Schneider Electric ATV340D18N4 Altivar Machine ATV340 18kW 3-Phase 400V 39A Variable Speed Drive
Description
About the ATV340D18N4
About the ATV340D18N4
The Schneider Electric ATV340D18N4 is an 18 kW variable speed drive from the Altivar Machine ATV340 series, designed for precise motor control in demanding industrial applications. Rated at 400V three-phase with a continuous output current of 39A, the ATV340D18N4 delivers reliable torque control, energy savings, and advanced frequency inverter functionality for machine builders and system integrators.
Applications & Use Cases
- Machine Building: The ATV340 series is engineered specifically for OEM machine builders requiring compact, high-performance variable frequency drive solutions.
- Conveyor & Handling Systems: Smooth acceleration and deceleration profiles make the ATV340D18N4 ideal for conveyor belts, hoists, and material handling equipment.
- Pump & Fan Control: Advanced torque control and energy-saving algorithms reduce energy consumption on variable-load pump and fan applications.
- Packaging Machinery: Precise speed and torque regulation supports high-cycle packaging, filling, and labelling machines.
- Industrial Automation: Compatible with major fieldbus and network protocols, enabling seamless integration into PLC-based motor control architectures.
Specification
Full specification
Main 15
| Range of Product | Altivar Machine ATV340 |
|---|---|
| Product or Component Type | Variable speed drive |
| Product Specific Application | Machine |
| Mounting Mode | Cabinet mount |
| Variant | Standard version |
| Communication Port Protocol | Modbus serial |
| Option card | communication module, Profibus DP V1, communication module, PROFINET, communication module, DeviceNet, communication module, CANopen, communication module, EtherCAT |
| Phase | 3 phase |
| Supply frequency | 50...60 Hz +/- 5 % |
| [Us] rated supply voltage | 380...480 V - 15...10 % |
| nominal output current | 39.0 A |
| Motor power kW | 22 kW normal duty, 18.5 kW heavy duty |
| Maximum Horse Power Rating | 30 hp normal duty, 25 hp heavy duty |
| EMC filter | Class C3 EMC filter integrated |
| IP degree of protection | IP20 |
Complementary 60
| Discrete input number | 5 |
|---|---|
| Discrete input type | PTI programmable as pulse input 0…30 kHz, 24 V DC 30 V), DI1...DI5 safe torque off, 24 V DC 30 V)3.5 kOhm, programmable |
| number of preset speeds | 16 preset speeds |
| Discrete output number | 2.0 |
| Discrete output type | Programmable output DQ1, DQ2 30 V DC 100 mA |
| Analogue input number | 2 |
| Analogue input type | AI1 software-configurable current 0...20 mA 250 Ohm 12 bits, AI1 software-configurable temperature probe or water level sensor, AI1 software-configurable voltage 0...10 V DC 31.5 kOhm 12 bits, AI2 software-configurable voltage - 10...10 V DC 31.5 kOhm 12 bits |
| Analogue output number | 1 |
| Analogue output type | Software-configurable voltage AQ1 0...10 V DC 470 Ohm 10 bits, Software-configurable current AQ1 0...20 mA 500 Ohm 10 bits |
| Relay output number | 2 |
| Output voltage | <= power supply voltage |
| Relay output type | Relay outputs R1A, Relay outputs R1C 100000 cycles, Relay outputs R2A, Relay outputs R2C 100000 cycles |
| Maximum switching current | Relay output R1C resistive, cos phi = 1 3 A 250 V AC, Relay output R1C resistive, cos phi = 1 3 A 30 V DC, Relay output R1C inductive, cos phi = 0.4 7 ms 2 A 250 V AC, Relay output R1C inductive, cos phi = 0.4 7 ms 2 A 30 V DC, Relay output R2C resistive, cos phi = 1 5 A 250 V AC, Relay output R2C resistive, cos phi = 1 5 A 30 V DC, Relay output R2C inductive, cos phi = 0.4 7 ms 2 A 250 V AC, Relay output R2C inductive, cos phi = 0.4 7 ms 2 A 30 V DC |
| Minimum switching current | Relay output R1B 5 mA 24 V DC, Relay output R2C 5 mA 24 V DC |
| Physical interface | 2-wire RS 485 |
| Connector Type | 1 RJ45 |
| Method of access | Slave Modbus RTU |
| Transmission Rate | 4.8 kbit/s, 9.6 kbit/s, 19.2 kbit/s, 38.4 kbit/s |
| Transmission frame | RTU |
| Number of addresses | 1…247 |
| Data format | 8 bits, configurable odd, even or no parity |
| Type of polarization | No impedance |
| 4 quadrant operation possible | True |
| Asynchronous motor control profile | Optimized torque mode, Variable torque standard, Constant torque standard |
| Synchronous motor control profile | Reluctance motor, Permanent magnet motor |
| Pollution degree | 2 IEC 61800-5-1 |
| Maximum output frequency | 0.599 kHz |
| Acceleration and deceleration ramps | S, U or customized, Linear adjustable separately from 0.01...9999 s |
| Motor slip compensation | Adjustable, Automatic whatever the load, Can be suppressed, Not available in permanent magnet motor law |
| Switching frequency | 2...16 kHz adjustable, 4...16 kHz with derating factor |
| Nominal switching frequency | 4 kHz |
| Braking to standstill | By DC injection |
| Brake chopper integrated | True |
| Line current | 43.4 A 380 V normal duty), 35.0 A 480 V normal duty), 54.7 A 380 V heavy duty), 43.4 A 480 V heavy duty) |
| Maximum Input Current per Phase | 54.7 A |
| Maximum output voltage | 480 V |
| Apparent power | 33.4 kVA 480 V normal duty), 36.1 kVA 480 V heavy duty) |
| Maximum transient current | 50.6 A 60 s normal duty), 59 A 60 s heavy duty), 62.1 A 2 s normal duty), 70 A 2 s heavy duty) |
| Electrical connection | Screw terminal 0.2...2.5 mm² control, Screw terminal 10...25 mm² line side, Screw terminal 10...25 mm² DC bus, Screw terminal 6...25 mm² motor |
| Prospective line Isc | 22 kA |
| Base load current at high overload | 39.0 A |
| Base load current at low overload | 46.0 A |
| Power dissipation in W | Natural convection 21 W 380 V 4 kHz heavy duty), Forced convection 410 W 380 V 4 kHz heavy duty), Natural convection 23 W 380 V 4 kHz normal duty), Forced convection 464 W 380 V 4 kHz normal duty) |
| 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 motor, Safe torque off motor, Motor phase loss motor, Thermal protection drive, Safe torque off drive, Overheating drive, Overcurrent drive, Output overcurrent between motor phase and earth drive, Output overcurrent between motor phases drive, Short-circuit between motor phase and earth drive, Short-circuit between motor phases drive, Motor phase loss drive, DC Bus overvoltage drive, Line supply overvoltage drive, Line supply undervoltage drive, Input supply loss drive, Exceeding limit speed drive, Break on the control circuit drive |
| Width | 7.09 in (180.0 mm) |
| Height | 15.2 in (385.0 mm) |
| Depth | 9.8 in (249.0 mm) |
| Net Weight | 22.5 lb(US) (10.2 kg) |
| Continuous output current | 46 A 4 kHz normal duty, 39 A 4 kHz heavy duty |
Environment 22
| Operating altitude | <= 9842.52 ft (3000 m) with current derating above 1000m |
|---|---|
| Operating position | Vertical +/- 10 degree |
| Product Certifications | UL, CSA, TÜV, EAC, CTick |
| Marking | CE |
| Standards | IEC 61800-3, IEC 61800-5-1, IEC 60721-3, IEC 61508, IEC 13849-1, UL 618000-5-1, UL 508C |
| Assembly style | With heat sink |
| Electromagnetic compatibility | Electrostatic 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 |
| Environmental class (during operation) | Class 3C3 according to IEC 60721-3-3, Class 3S3 according to IEC 60721-3-3 |
| Maximum acceleration under shock impact (during operation) | 70 m/s² at 22 ms |
| Maximum acceleration under vibrational stress (during operation) | 5 m/s² at 9...200 Hz |
| Maximum deflection under vibratory load (during operation) | 1.5 mm at 2...9 Hz |
| Permitted relative humidity (during operation) | Class 3K5 according to EN 60721-3 |
| Volume of cooling air | 33814.6 Gal/hr(US) (128.0 m3/h) |
| Type of cooling | Forced convection |
| Overvoltage category | Class III |
| Regulation loop | Adjustable PID regulator |
| Noise level | 56.7 dB |
| Pollution degree | 2 |
| Ambient air transport temperature | -40…158 °F (-40…70 °C) |
| Ambient air temperature for operation | 5…122 °F (-15…50 °C) without derating vertical position), 122…140 °F (50…60 °C) with derating factor vertical position) |
| Ambient Air Temperature for Storage | -40…158 °F (-40…70 °C) |
| Isolation | Between power and control terminals |
Show all 110 specifications ↓ Show less ↑13 more values in Identification, Contractual warranty, Logistics.
Identification 7
| Part number | ATV340D18N4 |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606480966965 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | ID |
|---|---|
| Shipping weight | 10.2 kg |
| Ships from | Türkiye |
| Dispatch | 16 Nov |
| Stock | Critical stock |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for ATV340D18N4
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Ask us for the datasheet
Certifications
Certifications and standards
- UL
- CSA
- EAC
- IEC 61800-3
- IEC 61800-5-1
- IEC 60721-3
- IEC 61508
- IEC 13849-1
- UL 618000-5-1
- UL 508C
Quick answers
Questions about the ATV340D18N4
What is the rated current of ATV340D18N4?
The rated current of ATV340D18N4 is 39 A.
Which supply voltage is ATV340D18N4 rated for?
The rated operational voltage of ATV340D18N4 is 380–480 V AC.
What motor power is ATV340D18N4 rated for?
The rated motor power of ATV340D18N4 is 18.5 kW.
What is the HS code of ATV340D18N4 for customs?
The tariff (HS) code on file for ATV340D18N4 is 850440.
What is the EAN of ATV340D18N4?
The EAN (GTIN) of ATV340D18N4 is 3606480966965.
Where does ATV340D18N4 ship from, and how fast?
ATV340D18N4 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Guides
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Series
Schneider Electric Altivar Machine ATV340
- Brand
- Schneider Electric
- Series
- Altivar Machine ATV340
