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
- ATV340D45N4E
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Schneider Electric ATV340D45N4E ATV340 45kW 3-Phase 400V 88A Variable Speed Drive
Description
About the ATV340D45N4E
About the ATV340D45N4E
The Schneider Electric ATV340D45N4E is a 45 kW variable speed drive from the Altivar Machine ATV340 series, designed for demanding industrial motor control applications requiring precise speed and torque regulation. Rated at 88 A and operating on a 3-phase 400 V supply, the ATV340D45N4E delivers reliable frequency inverter performance for pumps, fans, compressors, and conveyor systems. Weighing 58.4 kg, this robust drive is engineered for continuous duty in industrial environments where energy saving and EMC compliance are critical.
Applications & Use Cases
- Pump & Fan Control: Optimise flow rates and reduce energy consumption with variable speed operation on centrifugal pumps and HVAC fans.
- Conveyor & Handling Systems: Smooth acceleration and deceleration profiles protect mechanical components and improve throughput on conveyor lines.
- Compressor Drives: Maintain precise pressure control and reduce wear with torque-controlled VFD operation on industrial compressors.
- Machine Automation: The ATV340D45N4E integrates into OEM machine builders' architectures requiring high-performance frequency inverter control at 45 kW.
- Energy Saving Applications: Variable speed control reduces motor energy consumption compared to fixed-speed operation with throttling valves or dampers.
Specification
Full specification
Main 16
| Range of Product | Altivar Machine ATV340 |
|---|---|
| Product or Component Type | Variable speed drive |
| Product Specific Application | Machine |
| Mounting Mode | Wall mount |
| Variant | Standard version |
| Communication Port Protocol | Modbus TCP, Modbus serial, EtherNet/IP |
| Option card | 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 | 88.0 A |
| Motor power kW | 55 kW normal duty, 45 kW heavy duty |
| Maximum Horse Power Rating | 75 hp normal duty, 60 hp heavy duty |
| EMC filter | Class C3 EMC filter integrated |
| IP degree of protection | IP20 |
| Degree of protection | UL type 1 |
Complementary 60
| Discrete input number | 8 |
|---|---|
| Discrete input type | PTI safe torque off 0…30 kHz, 24 V DC 30 V), DI1...DI5 programmable as pulse input, 24 V DC 30 V)3.5 kOhm, programmable |
| number of preset speeds | 16 preset speeds |
| Discrete output number | 1.0 |
| Discrete output type | Programmable output DQ1, DQ2 30 V DC 100 mA |
| Analogue input number | 3 |
| 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 | 2 |
| Analogue output type | Software-configurable voltage AQ1, AQ2 0...10 V DC 470 Ohm 10 bits, Software-configurable current AQ1, AQ2 0...20 mA 500 Ohm 10 bits |
| Relay output number | 3 |
| 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 | 3 RJ45 |
| Method of access | Slave Modbus RTU, Slave Modbus TCP |
| 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 | Constant torque standard, Optimized torque mode, Variable 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 | Not available in permanent magnet motor law, Can be suppressed, Adjustable, Automatic whatever the load |
| Switching frequency | 1...8 kHz adjustable, 2.5...8 kHz with derating factor |
| Nominal switching frequency | 2.5 kHz |
| Braking to standstill | By DC injection |
| Brake chopper integrated | True |
| Line current | 97.2 A 380 V normal duty), 84.2 A 480 V normal duty), 81.4 A 380 V heavy duty), 71.8 A 480 V heavy duty) |
| Maximum Input Current per Phase | 97.2 A |
| Maximum output voltage | 480 V |
| Apparent power | 70 kVA 480 V normal duty), 59.7 kVA 480 V heavy duty) |
| Maximum transient current | 127.2 A 60 s normal duty), 132 A 60 s heavy duty), 127.2 A 2 s normal duty), 132 A 2 s heavy duty) |
| Electrical connection | Screw terminal 0.75...1.5 mm² control, Screw terminal 70...120 mm² line side, Screw terminal 70...120 mm² DC bus, Screw terminal 70...120 mm² motor |
| Prospective line Isc | 50 kA |
| Base load current at high overload | 88.0 A |
| Base load current at low overload | 106.0 A |
| Power dissipation in W | Natural convection 105 W 380 V 4 kHz heavy duty), Forced convection 943 W 380 V 4 kHz heavy duty), Natural convection 115 W 380 V 4 kHz normal duty), Forced convection 917 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 | 10.7 in (271.0 mm) |
| Height | 35.7 in (908.0 mm) |
| Depth | 12.2 in (309.0 mm) |
| Net Weight | 124.3 lb(US) (56.4 kg) |
| Continuous output current | 106 A 4 kHz normal duty, 88 A 4 kHz heavy duty |
Environment 23
| Operating altitude | <= 4800 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, IEC 61000-3-12 |
| Maximum THDI | <48 % full load IEC 61000-3-12, <48 % 80 % load IEC 61000-3-12 |
| 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) | 150 m/s² at 11 ms |
| Maximum acceleration under vibrational stress (during operation) | 10 m/s² 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 | 77932.2 Gal/hr(US) (295.0 m3/h) |
| Type of cooling | Forced convection |
| Overvoltage category | Class III |
| Regulation loop | Adjustable PID regulator |
| Noise level | 62.4 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 112 specifications ↓ Show less ↑13 more values in Identification, Contractual warranty, Logistics.
Identification 7
| Part number | ATV340D45N4E |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606480967115 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | CN |
|---|---|
| Shipping weight | 58.4 kg |
| Ships from | Türkiye |
| Dispatch | 16 Nov |
| Stock | Low stock |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for ATV340D45N4E
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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
- IEC 61000-3-12
Quick answers
Questions about the ATV340D45N4E
What is the rated current of ATV340D45N4E?
The rated current of ATV340D45N4E is 88 A.
Which supply voltage is ATV340D45N4E rated for?
The rated operational voltage of ATV340D45N4E is 380–480 V AC.
What motor power is ATV340D45N4E rated for?
The rated motor power of ATV340D45N4E is 45 kW.
What is the HS code of ATV340D45N4E for customs?
The tariff (HS) code on file for ATV340D45N4E is 850440.
What is the EAN of ATV340D45N4E?
The EAN (GTIN) of ATV340D45N4E is 3606480967115.
Where does ATV340D45N4E ship from, and how fast?
ATV340D45N4E ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
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Series
Schneider Electric Altivar Machine ATV340
- Brand
- Schneider Electric
- Series
- Altivar Machine ATV340
