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
- ATV340U30N4
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Schneider Electric ATV340U30N4 Altivar Machine ATV340 3kW 400V 3-Phase 9.3A Variable Speed Drive
Description
About the ATV340U30N4
About the ATV340U30N4
The Schneider Electric ATV340U30N4 is a 3 kW variable speed drive from the Altivar Machine ATV340 series, designed for precise motor control in demanding industrial applications. Operating on a 3-phase 400 V supply with a rated output current of 9.3 A (normal duty at 4 kHz) or 7.2 A (heavy duty at 4 kHz), this frequency inverter delivers accurate torque control and energy saving performance. Supplied with an integrated heat sink, the ATV340U30N4 is engineered for machine builders requiring compact, high-performance VSD solutions.
Certifications & Standards
- CE: European conformity marking for health, safety, and environmental requirements
- UL: Underwriters Laboratories certification for North American market
- CSA: Canadian Standards Association certification
- TUV: TÜV safety and quality certification
- EAC: Eurasian Conformity marking for Russia and CIS markets
- C-Tick: Australian/New Zealand EMC compliance
- EN/IEC 61800-3: Adjustable speed electrical power drive systems — EMC requirements
- EN/IEC 61800-5: Safety requirements for adjustable speed electrical power drive systems
- IEC 60728-3: Cable networks for television signals — EMC performance
- IEC 61508: Functional safety of electrical/electronic/programmable electronic safety-related systems
- IEC 61849-1: Safety of household and similar electrical appliances
- UL 61800-5: UL standard for adjustable speed electrical power drive safety
- UL 508C: UL standard for power conversion equipment
- EN/EEC 61800-5-1: Adjustable speed electrical power drive systems safety requirements
- IEC 60721-3-3: Classification of environmental conditions — stationary use
- EN 60721-3: Classification of environmental conditions
- ISO 13849: Safety of machinery — safety-related parts of control systems
- IEC/EN 61508: Functional safety standard
- IEC/EN 60204-1: Safety of machinery — electrical equipment of machines
- IEC 61000-4-2: EMC immunity to electrostatic discharge
- IEC 61000-4-3: EMC immunity to radiated electromagnetic fields
- IEC 61000-4-4: EMC immunity to electrical fast transient/burst
- IEC 61000-4-5: EMC immunity to surge
- IEC 61000-4-6: EMC immunity to conducted disturbances
- RoHS: Restriction of Hazardous Substances directive compliance
- REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals compliance
- WEEE: Waste Electrical and Electronic Equipment directive compliance
- China RoHS: China restriction of hazardous substances compliance
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 | 7.2 A |
| Motor power kW | 4 kW normal duty, 3 kW heavy duty |
| Maximum Horse Power Rating | 3 hp heavy duty, 5 hp normal 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 | Variable torque standard, Optimized torque mode, 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 | Linear adjustable separately from 0.01...9999 s, S, U or customized |
| Motor slip compensation | Not available in permanent magnet motor law, Can be suppressed, Automatic whatever the load, Adjustable |
| Switching frequency | 2...16 kHz adjustable, 7...16 kHz with derating factor |
| Nominal switching frequency | 4 kHz |
| Braking to standstill | By DC injection |
| Brake chopper integrated | True |
| Line current | 8.6 A 380 V normal duty), 6.8 A 480 V normal duty), 10.7 A 380 V heavy duty), 8.5 A 480 V heavy duty) |
| Maximum Input Current per Phase | 10.7 A |
| Maximum output voltage | 480 V |
| Apparent power | 6.7 kVA 480 V normal duty), 7.1 kVA 480 V heavy duty) |
| Maximum transient current | 10.2 A 60 s normal duty), 12.6 A 2 s normal duty), 13 A 2 s heavy duty), 11 A 60 s heavy duty) |
| Electrical connection | Screw terminal 1.5...4 mm² line side, Screw terminal 4...6 mm² DC bus, Screw terminal 1.5...4 mm² motor, Screw terminal 0.2...2.5 mm² control |
| Prospective line Isc | 5 kA |
| Base load current at high overload | 7.2 A |
| Base load current at low overload | 9.3 A |
| Power dissipation in W | Natural convection 78 W 380 V 4 kHz heavy duty), Forced convection 78 W 380 V 4 kHz heavy duty), Natural convection 96 W 380 V 4 kHz normal duty), Forced convection 96 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 | 3.3 in (85.0 mm) |
| Height | 10.6 in (270.0 mm) |
| Depth | 9.2 in (232.5 mm) |
| Net Weight | 4.6 lb(US) (2.1 kg) |
| Continuous output current | 9.3 A 4 kHz normal duty, 7.2 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 | 5019.4 Gal/hr(US) (19.0 m3/h) |
| Type of cooling | Forced convection |
| Overvoltage category | Class III |
| Regulation loop | Adjustable PID regulator |
| Noise level | 51.2 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 | ATV340U30N4 |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606480966903 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | ID |
|---|---|
| Shipping weight | 2.2 kg |
| Ships from | Türkiye |
| Dispatch | 16 Nov |
| Stock | Low stock |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for ATV340U30N4
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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 ATV340U30N4
What is the rated current of ATV340U30N4?
The rated current of ATV340U30N4 is 7.2 A.
Which supply voltage is ATV340U30N4 rated for?
The rated operational voltage of ATV340U30N4 is 380–480 V AC.
What motor power is ATV340U30N4 rated for?
The rated motor power of ATV340U30N4 is 3 kW.
What is the HS code of ATV340U30N4 for customs?
The tariff (HS) code on file for ATV340U30N4 is 850440.
What is the EAN of ATV340U30N4?
The EAN (GTIN) of ATV340U30N4 is 3606480966903.
Where does ATV340U30N4 ship from, and how fast?
ATV340U30N4 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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Reviews
Customer reviews
Series
Schneider Electric Altivar Machine ATV340
- Brand
- Schneider Electric
- Series
- Altivar Machine ATV340
