ABB ACS550-01-031A-4 Variable Frequency Drive (VFD)
This is an ABB ACS550 series three-phase VFD, rated 15kW (Normal Duty) / 11kW (Heavy Duty), with nominal output current 31A. It is designed for 380-480V power grid, wall-mounted (IP21) enclosure, built-in vector control and EMC filter. Suitable for general industrial applications such as pumps, fans and conveyors.
- Definizione di scomposizione del modello
| Segmento | Codice | Descrizione |
| Series ID | ACS550 | ABB standard low-voltage AC drive series for general-purpose applications |
| Structure Type | 1 | Wall-mounted construction (IP21 protection rating), for standard industrial environments |
| Corrente nominale | 031UN | Nominal continuous output current 31A; corresponds to 15kW for normal duty / 11kW for heavy duty |
| Classe di tensione | 4 | Suitable for three-phase 380-480V AC input power (+10/-15% voltage fluctuation tolerance) |
Product ID: 3AUA0000002418-D
Dimensioni del telaio: R3
- Core Specification Parameter Table
| Categoria | Parametro | Valutazione | Osservazioni |
| Basic Ratings | Corrente di uscita nominale (I₂N) | 31UN | Continuous operation at 40℃ ambient |
| Normal Duty Power | 15kW | Standard 400V operating condition | |
| Heavy Duty Power | 11kW | Standard 400V operating condition | |
| Overload Capability | 1.1×I₂N (1 minute per 10 minuti) | For normal duty; 1.5×I₂hd for heavy duty | |
| Caratteristiche Elettriche | Tensione in ingresso | 3-phase 380-480V | Input frequency: 48-63Hz |
| Tensione di uscita | 3-fase 0 ~ Input Voltage | Frequenza di uscita: 0-500Hz | |
| Modalità di controllo | Controllo vettoriale (Open-loop / Closed-loop) | Open-loop accuracy: 20% motor slip; Closed-loop accuracy: 0.1% of rated speed | |
| Switching Frequency | 4kHz (Predefinito) | Opzionale: 1/2/4/8/12kHz | |
| Interfaccia I/O | Ingresso analogico | 2 canali (0-10V / 4-20mA) | Impedenza di ingresso: Voltaggio >312kΩ, Current 100Ω |
| Uscita analogica | 2 canali (4-20mA) | Max load <500OH, Accuracy ±3% | |
| Ingresso digitale | 6 canali | 24A DC, PNP/NPN compatible | |
| Uscita relè | 3 canali | Max 250V AC / 30A DC, Switching current 6A | |
| Interfaccia di comunicazione | Built-in RS485 (ModBus) | Support expansion of multiple fieldbuses | |
| Caratteristiche fisiche | Classe di protezione | IP21 | Configurazione standard; IP54 optional |
| Dimensioni (L×A×P) | 270×600×450mm | R3 frame size | |
| Peso | ca. 20.5kg | Basic configuration included | |
| Dissipazione del calore | 457W | Air flow: 134m³/h | |
| Environmental Limits | Temperatura operativa | -15℃ ~ 50℃ | Derating required above 40-50℃ |
| Altitudine | 0-1000M (Full rating) | Declassare 1% per 100m elevation increase | |
| Umidità | 5-95% (Non-condensing) | Conforme alla norma CEI 721-3-3 |
- Accessori standard & Optional Parts List
3.1 Standard Supplied Accessories
Assistant Control Panel (ACS-CP-D), with real-time clock and parameter modification record function
Built-in Class C2 EMC Filter (First Environment), meets basic EMC requirements
Mounting template for quick drilling position marking
Product manual and quick start guide
Standard I/O terminals and Modbus communication interface
3.2 Recommended Optional Parts
| Tipo | Modello | Descrizione della funzione | Scenario applicativo |
| Control Panel | ACS-CP-C | Advanced control panel with parameter copy and multi-language support | Messa in servizio & batch configuration for multiple VFDs |
| Unità di frenatura | ACS-BRK-D | Brake chopper + resistor (10.5, 7kW) | Frequent start-stop / fast deceleration applications |
| Reactor | LOCH0030-60 | Output reactor (41UN) | Suppress dv/dt when motor cable length >200M |
| Modulo di comunicazione | Various Fieldbus | Profibus DP / DeviceNet / Ethernet/IP | Connection to PLC control system |
| Encoder Module | Opzionale | Speed feedback to improve closed-loop control accuracy | High-precision speed control applications |
| Extended I/O | Opzionale | Additional 3 uscite relè | Multi-status monitoring & control requirements |
- Cross-Brand Alternative Comparison Table
| Marca | Serie | Modello equivalente | Key Parameter Matching | Descrizione della differenza |
| Schneider | Altivar 610 | ATV610U15N4 | 15kW/31A/380-480V | Built-in PLC with higher integration |
| Siemens | SINAMICS G120C | 6SL3210-1PE21-8UL0 | 15kW/31A/380-480V | Modular design with strong expandability |
| Mitsubishi | FR-A840 | FR-A840-15K-NA | 15kW/31A/380-480V | High vector control accuracy, adatto a carichi complessi |
| Danfoss | VLT 2800 | 2840PT37T20H | 15kW/31A/380-480V | Conveniente, ideal for fan & pump applications |
| Alternativa ABB | ACS510 | ACS510-01-031A-4 | 15kW/31A/380-480V | Simplified version for fan/pump, without vector control |
- Linee guida per la selezione & Soluzioni alternative
5.1 Core Selection Principles
Current Priority: VFD rated current ≥ 1.1~1.3 times motor rated current, do not select only by power rating
Carica corrispondenza:
Dovere normale (Pump/Fan): Standard selection 15kW/31A
Pesante (Compressor/Crusher): Recommend upgrade to 18.5kW (ACS550-01-038A-4) or higher frame
Adattamento ambientale:
Temperatura >40℃: Derate 5~10% per 5℃ rise
Altitudine >1000M: Declassare 1% per 100m rise
Dust environment: Select IP54 protection grade model
5.2 Recommended Alternative Solutions
| Scenario applicativo | Soluzione consigliata | Descrizione del vantaggio |
| Standard General Purpose | ACS550-01-031A-4 | Built-in vector control, prestazione ad alto costo |
| Fan & Pompa dedicata | ACS510-01-031A-4 | Energy-saving optimized algorithm, costo inferiore |
| High Precision Control | ACS550-01-031A-4 + Encoder Module | Closed-loop control, speed accuracy up to 0.1% |
| Heavy Duty Frequent Start-Stop | ACS550-01-038A-4 + ACS-BRK-D | Higher power margin + braking assembly, longer service life |
| Cost-Sensitive Project | Schneider ATV320U15N4 | Dimensioni compatte, competitive price |
5.3 Installazione & Punti chiave della manutenzione
Cooling clearance reserved: 200mm top and bottom, no special requirement for left and right sides
Protezione dell'ingresso: Recommended 35A gG fuse (UL Class T 40A)
Motor cable: Standard length ≤200m; install output reactor for longer distance
Ciclo di manutenzione: Inspect cooling fan and capacitor condition after 10,000 operating hours
- ACS550 Series Full Power Model List (R3 Frame Size)
| Modello | Corrente nominale | Normal Duty Power | Heavy Duty Power | Scenario applicativo |
| ACS550-01-031A-4 | 31UN | 15kW | 11kW | Standard general load |
| ACS550-01-038A-4 | 38UN | 18.5kW | 15kW | Pesante / Frequent start-stop |
| ACS550-01-045A-4 | 45UN | 22kW | 18.5kW | High-power general load |
The ACS550-01-031A-4 is a cost-effective general-purpose vector VFD, suitable for 15kW normal duty / 11kW heavy duty loads. With rich built-in functions and interfaces, it is widely used in general machinery requiring high control accuracy and reliability in industrial automation. Prioritize motor current matching during selection, and determine expansion modules or power upgrade according to load type and ambient conditions.
Complete Full Range Model List of ABB Variable Frequency Drives (Structured Version)
- Quick Overview of Model Naming Rules
ABB VFD adopts standard format: ACSxxx-xx-xxxX-xx, definition of each segment as below:
| Segmento | Senso | Esempio | Descrizione |
| ACSxxx | Codice serie | ACS550/510/880 | Product positioning & application category |
| -xx | Structure Code | 01/04/31 | 01=Wall-mounted IP21; 04=Cabinet-type IP21; 31=Wall-mounted IP54 |
| -xxxX | Corrente nominale | 031A/125A | Numeric + letter for output current; A = Standard type |
| -xx | Classe di tensione | 2004/2/7 | 4=380-480V 3-phase; 2=200-240V 3-phase; 7=500-690V 3-phase |
- Main Series Overview (Sorted by Power Range)
| Serie | Posizionamento | Gamma di potenza | Applicazione tipica | Caratteristiche |
| ACS150 | Economy Micro Drive | 0.37-4kW | Small pumps, tifosi, rolling shutters | Single/3-phase universal, operazione semplice, IP20/IP21 |
| ACS355 | Compact General Drive | 0.37-15kW | Macchine per l'imballaggio, piccoli trasportatori | Built-in brake chopper, ampio intervallo di tensione |
| ACS510 | Fan & Pompa dedicata | 0.75-160kW | Constant pressure water supply, ventola di raffreddamento, HVAC | Energy-saving optimized algorithm, built-in PID, basso costo |
| ACS550 | Enhanced General Drive | 0.75-355kW | Compressori, trasportatori, miscelatori | Controllo vettoriale, strong heavy-duty capability, EMC integrata |
| ACS580 | New Generation General Machinery Drive | 0.75-500kW | All kinds of industrial loads | Integrated safety functions, progettazione modulare, intelligent connection |
| ACS880 | Flagship High-Performance Drive | 0.75-2500kW | High-precision control, complex machinery | Full compatibility, alta affidabilità, built-in safety functions |
| ACH550 | HVAC Dedicated | 0.75-355kW | Air conditioning & sistemi di ventilazione | Building control protocol, comfort control algorithm |
- Detailed Model List by Series
3.1 ACS550 Series (Enhanced General Drive, IP21 Wall-mounted, 380-480V trifase)
| Modello | Corrente nominale | Normal Duty Power | Heavy Duty Power | Dimensioni del telaio | Codice ordine |
| ACS550-01-003A-4 | 3UN | 0.75kW | 0.55kW | R1 | 3AUA0000002415-D |
| ACS550-01-004A-4 | 4UN | 1.1kW | 0.75kW | R1 | 3AUA0000002416-D |
| ACS550-01-006A-4 | 6UN | 1.5kW | 1.1kW | R1 | – |
| ACS550-01-009A-4 | 9UN | 4kW | 3kW | R1 | – |
| ACS550-01-012A-4 | 12UN | 5.5kW | 4kW | R1 | – |
| ACS550-01-015A-4 | 15UN | 7.5kW | 5.5kW | R2 | – |
| ACS550-01-019A-4 | 19UN | 11kW | 7.5kW | R2 | – |
| ACS550-01-023A-4 | 23UN | 11kW | 10kW | R2 | 3AUA0000002417-D |
| ACS550-01-031A-4 | 31UN | 15kW | 11kW | R3 | 3AUA0000002418-D |
| ACS550-01-038A-4 | 38UN | 18.5kW | 15kW | R3 | – |
| ACS550-01-045A-4 | 45UN | 22kW | 18.5kW | R3 | – |
| ACS550-01-057A-4 | 57UN | 30kW | 22kW | R4 | – |
| ACS550-01-072A-4 | 72UN | 37kW | 30kW | R4 | – |
| ACS550-01-09A4-4 | 94UN | 45kW | 37kW | R5 | – |
| ACS550-01-125A-4 | 125UN | 55kW | 45kW | R5 | 3ABD68589657 |
| ACS550-01-157A-4 | 157UN | 75kW | 55kW | R6 | – |
| ACS550-01-180A-4 | 180UN | 90kW | 75kW | R6 | – |
| ACS550-01-210A-4 | 210UN | 110kW | 90kW | R7 | – |
| ACS550-01-250A-4 | 250UN | 132kW | 110kW | R7 | – |
| ACS550-01-290A-4 | 290UN | 160kW | 132kW | R8 | – |
| ACS550-01-340A-4 | 340UN | 185kW | 160kW | R8 | – |
| ACS550-01-400A-4 | 400UN | 200kW | 185kW | R9 | – |
3.2 ACS510 Series (Fan & Pompa dedicata, IP21 Wall-mounted, 380-480V trifase)
| Modello | Corrente nominale | Energia | Dimensioni del telaio |
| ACS510-01-003A3-4 | 3.3UN | 1.1kW | R1 |
| ACS510-01-004A1-4 | 4.1UN | 1.5kW | R1 |
| ACS510-01-005A6-4 | 5.6UN | 2.2kW | R1 |
| ACS510-01-007A2-4 | 7.2UN | 3kW | R1 |
| ACS510-01-009A4-4 | 9.4UN | 4kW | R1 |
| ACS510-01-012A5-4 | 12.5UN | 5.5kW | R1 |
| ACS510-01-015A6-4 | 15.6UN | 7.5kW | R2 |
| ACS510-01-019A0-4 | 19.0UN | 11kW | R2 |
| ACS510-01-024A1-4 | 24.1UN | 15kW | R3 |
| ACS510-01-030A8-4 | 30.8UN | 18.5kW | R3 |
| ACS510-01-038A0-4 | 38.0UN | 22kW | R3 |
| ACS510-01-045A0-4 | 45.0UN | 30kW | R4 |
| ACS510-01-057A0-4 | 57.0UN | 37kW | R4 |
| ACS510-01-072A0-4 | 72.0UN | 45kW | R5 |
| ACS510-01-09A4-4 | 94.0UN | 55kW | R5 |
3.3 ACS880 Series (Flagship High-End Drive, Partial Models)
| Modello | Structure Type | Corrente nominale | Energia | Classe di tensione | Caratteristiche |
| ACS880-01-003A-4 | Wall-mounted IP21 | 3UN | 0.75kW | 380-480V | Compact type |
| ACS880-01-031A-4 | Wall-mounted IP21 | 31UN | 15kW | 380-480V | Controllo vettoriale |
| ACS880-31-145A-3 | Wall-mounted IP54 | 145UN | 75kW | 380-480V | Antipolvere & impermeabile |
| ACS880-04-271A-7 | Cabinet-type IP21 | 271UN | 160kW | 500-690V | High power density |
| ACS880-07-0450A-7 | Cabinet-type IP21 | 450UN | 315kW | 500-690V | Progettazione modulare |
3.4 Selected Models of Other Common Series
| Serie | Modello | Energia | Voltaggio | Applicazione |
| ACS355 | ACS355-03E-04A7-4 | 1.5kW | 380-480V | Small machinery |
| ACS355-03E-12A5-4 | 5.5kW | 380-480V | Packaging equipment | |
| ACS150 | ACS150-03E-03A3-4 | 1.1kW | 380-480V | Small pumps |
| ACS150-01E-02A4-2 | 0.75kW | 200-240V | Single-phase power supply | |
| ACH550 | ACH550-01-031A-4 | 15kW | 380-480V | HVAC system |
| ACH550-01-125A-4 | 55kW | 380-480V | Large air conditioning | |
| ACS580 | ACS580-01-04A5-4 | 2.2kW | 380-480V | General machinery |
| ACS580-01-320A-4 | 160kW | 380-480V | Heavy-duty load |
- Note sulla selezione dei tasti
- Current Priority Principle: VFD rated current ≥ 1.1~1.3 times motor rated current; do not select merely by power rating.
- Carica la corrispondenza del tipo:
Fan / Pump: Choose ACS510 / ACS380 for better energy saving
Constant torque / Pesante: Choose ACS550 / ACS880 for stronger overload capability
HVAC dedicated: Choose ACH550 with built-in building control protocol
- Adattamento ambientale:
Dust environment: Select IP54 protection grade (per esempio. ACS880-31 series)
High temperature environment: Derating required above 40℃, derate 5~10% per 5℃ rise
Altitudine >1000M: Declassare 1% per 100m elevation increase
- Model Extension Rules
Basic model can be extended with +option code for additional functions, examples:
ACS550-01-031A-4+J400: Add Profibus DP communication module
ACS550-01-031A-4+K454: Add brake chopper
ACS550-01-031A-4+L501: Add output reactor
Contattore,interruttore automatico,inverter solare,contatore elettrico,batterie solari





















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