ABB ACS550-01-087A-4 Inverter Drive – 37kW/45kW, IP21

The ABB ACS550-01-087A-4 inverter drive delivers powerful, efficient control for motors up to 45 kW, combining robust performance with intelligent features suited to industrial and infrastructure applications.

With flexible operation via VxF or sensorless vector control, built-in Modbus RTU communication, and a heavy-duty R4 frame, this drive is perfect for HVAC systems, water management, material handling, and process automation.

Technical Specifications

Model: ACS550-01-087A-4
Series: ACS550
Type: Variable Frequency Drive (VFD)
Power Output: 37 kW (50 HP) at High Overload / 45 kW (60 HP) Fan & Pump Duty
Enclosure: IP21
Mounting: Cubicle Mount
Application: Industrial pumps, fans, compressors, conveyors, HVAC, and processing 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): 72 A (High Overload) / 87 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 1.44 kW

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: R4
• Weight: 24 kg
• Dimensions: 689 × 203 × 262 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 × 578 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 since January 2018
Equivalent ACS580 models available with enhanced connectivity and energy-saving functions

Key Benefits of the ABB ACS550-01-087A-4

✅ High Power Control: Supports motors up to 45 kW for intensive industrial operations.

✅ Built-In Communication: RS-485 Modbus simplifies system integration.

✅ Efficient Thermal Design: Manages 1.44 kW of heat with internal fan cooling.

✅ Flexible Control Modes: Suitable for both constant and variable torque applications

✅ Rugged and Reliable: Trusted ABB platform for long-term durability.

📦 In Stock Now at Drive Outlet Megastore

At Drive Outlet Megastore, we offer unbeatable prices on the ABB ACS550-01-087A-4 inverter drive.

Whether you’re upgrading legacy drives or building new systems, this ACS550 delivers the performance and flexibility industrial professionals rely on.

Request a quote or contact us today

Trusted ABB Drives. Fast Delivery. Lowest UK Prices – Only at Drive Outlet Megastore.