ABB ACS550-01-045A-4 Inverter Drive – 22 kW, 3PH, IP21, VxF & Vector Control

The ABB ACS550-01-045A-4 inverter drive delivers high-performance motor control for demanding industrial environments, rated for motors up to 22 kW with support for both high overload and fan/pump applications.

Equipped with flexible control modes, built-in RS-485 Modbus communication, and a rugged R3 frame, this drive is ideal for use in HVAC systems, water treatment, conveyors, and heavy-duty process equipment.

Technical Specifications

Model: ACS550-01-045A-4
Series: ACS550
Type: Variable Frequency Drive (VFD)
Power Output: 18.5 kW (25 HP) at High Overload / 22 kW (30 HP) Fan & Pump Duty
Enclosure: IP21
Mounting: Cubicle Mount
Application: Pumps, fans, compressors, conveyors, HVAC, and industrial 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): 38 A (High Overload) / 45 A (Normal Duty)
• Overload Capacity: 150% for 60 s (HO) / 110% for 60 s (ND)
• Control Type: VxF and Sensorless Vector Control
• Brake Chopper: Not included (external braking unit optional)
• Heat Dissipation: Max 667 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: R3
• Weight: 16 kg
• Dimensions: 583 × 203 × 231 mm (H × W × D, incl. gland kit)
• Cooling: Internal fan (ventilation: 200 mm above/below, 0 mm sides)
• Mounting Holes: 8 × 6.5 mm slotted holes (160 mm / 98 mm × 473 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The ABB ACS550 series has been replaced by the ABB ACS580 range as of January 2018
Direct ACS580 equivalents available for improved functionality and energy savings

Key Benefits of the ABB ACS550-01-045A-4

✅ High Power Output: Designed to handle motors up to 22 kW.

✅ Field-Ready Performance: Perfect for HVAC, process, and utility systems.

✅ Built-In Communication: Modbus RTU simplifies integration.

✅ Reliable Cooling: Handles continuous load with efficient internal fan system.

✅ Industrial-Grade Construction: Built for long-term, heavy-duty performance.

📦 In Stock Now at Drive Outlet Megastore

At Drive Outlet Megastore, we offer unbeatable prices on the ABB ACS550-01-045A-4 inverter drive.

Engineered for powerful motor control and easy integration, this ABB drive is the smart choice for applications requiring performance, reliability, and flexibility.

Request a quote or contact us today

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