ABB ACS550-01-012A-4 Inverter Drive – 4kW/5.5kW, IP21
The ABB ACS550-01-012A-4 inverter drive provides efficient, compact control for motors up to 5.5 kW, combining flexible performance, robust features, and space-saving design for light industrial and HVAC applications.
With built-in Modbus RTU, dual control modes, and a user-friendly keypad interface, this drive ensures seamless integration and dependable operation for pumps, fans, and conveyors.
Technical Specifications
Model: ACS550-01-012A-4
Series: ACS550
Type: Variable Frequency Drive (VFD)
Power Output: 4 kW (5 HP) at High Overload / 5.5 kW (7.5 HP) Fan & Pump Duty
Enclosure: IP21
Mounting: Cubicle Mount
Application: HVAC, small pumps, fans, conveyors, and process equipment
Electrical Specifications
- Input Voltage: 380–480 V AC (±10%)
- Phase: 3-phase
- Frequency Range: 50–60 Hz (±5%)
- Output Frequency: 0–500 Hz
- Output Current (HO / ND): 8.8 A (High Overload) / 11.9 A (Normal Duty)
- Overload Capacity: 150% for 60 s (HO) / 110% for 60 s (ND)
- Control Type: VxF and Sensorless Vector Control
- Brake Chopper: External resistor required (80–128 Ω)
- Heat Dissipation: Max 172 W
I/O and Communication
- Digital Inputs: 6 programmable
- Analog Inputs: 2
- Analog Outputs: 2
- Relay Outputs: 3 contact sets
- Keypad: Assistant Control Panel (included)
- RS-485 / Modbus RTU: Built-in
Mechanical and Environmental
- Mounting Type: Cubicle-mounted
- Frame Size: R1
- Weight: 6.5 kg
- Dimensions: 369 × 125 × 212 mm (H × W × D, incl. gland kit)
- Cooling: Internal fan (ventilation: 200 mm above/below, 0 mm sides)
- Mounting Holes: 4 × 5.5 mm slotted holes (98 mm × 318 mm centres)
- Operating Temp: Up to +40 °C ambient
Compliance and Certifications
- CE Certified
- UL / cUL Listed
- EMC Compliance: IEC EN61800-3:2004 (C3/C2)
- RoHS Compliant
- Manufacturing Standards: ISO 9001, ISO 14001
Replacement Information
The ABB ACS550 series has been succeeded by the ABB ACS580 as of January 2018
Direct upgrade paths available for performance and compatibility enhancements
Key Benefits of the ABB ACS550-01-012A-4
✅ Flexible Power Rating: Supports both 4 kW and 5.5 kW motors.
✅ Compact & Lightweight: Ideal for tight cabinet installations.
✅ Integrated Modbus: Enables simple automation system connectivity.
✅ Low Heat Output: Efficient operation with minimal energy loss.
✅ Trusted ABB Build Quality: Proven durability in industrial settings.
📦 In Stock Now at Drive Outlet Megastore
At Drive Outlet Megastore, we offer unbeatable prices on the ABB ACS550-01-012A-4 inverter drive.
Whether you’re upgrading an old system or building new, this compact and efficient drive delivers reliable speed control where it matters most.
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