ABB ACS550-01-08A8-4 Inverter Drive – 3kW/4kW, IP21
The ABB ACS550-01-08A8-4 inverter drive delivers compact, efficient control for motors up to 4 kW, ideal for use in light-duty industrial and commercial applications.
With support for both VxF and sensorless vector control, integrated Modbus RTU, and a space-saving R1 frame, this ABB VFD is well-suited for pumps, fans, and basic automation systems.
Technical Specifications
Model: ACS550-01-08A8-4
Series: ACS550
Type: Variable Frequency Drive (VFD)
Power Output: 3 kW (4 HP) at High Overload / 4 kW (5 HP) Fan & Pump Duty
Enclosure: IP21
Mounting: Cubicle Mount
Application: Fans, pumps, HVAC, conveyors, and basic motor control systems
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): 6.9 A (High Overload) / 8.8 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 (80–192 Ω)
- Heat Dissipation: Max 127 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 was officially replaced by the ABB ACS580 line in January 2018
Direct replacements available for system upgrades and retrofits
Key Benefits of the ABB ACS550-01-08A8-4
✅ Dual Duty Ratings: Supports both 3 kW and 4 kW motor loads.
✅ Built-In Modbus RTU: Seamless integration with automation systems.
✅ Slim Profile: Space-efficient R1 frame for compact installations.
✅ Low Power Loss: Only 127 W of maximum heat output.
✅ Proven ABB Performance: Trusted technology from an industry leader.
📦 In Stock Now at Drive Outlet Megastore
At Drive Outlet Megastore, we offer unbeatable prices on the ABB ACS550-01-08A8-4 inverter drive.
This compact and affordable ABB VFD offers dependable motor control, streamlined configuration, and fast integration—ideal for light industrial use.
Request a quote or contact us today
Trusted ABB Drives. Fast Delivery. Lowest UK Prices – Only at Drive Outlet Megastore.
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