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ACS550-01-03A3-4
ACS550-01-03A3-4
  1. ACS550-01-03A3-4
  2. ACS550-01-03A3-4

ABB ACS550-01-03A3-4 Inverter Drive – 0.75kW/1.1kW, IP21

£1,011.95 inc VAT

In Stock · Delivered in 3–5 Working Days
Estimated UK delivery time, subject to order confirmation, courier services and destination. International delivery times vary.
Technical SpecificationsABB
Input Voltage 380–480 V AC (±10%)
Model ACS550-01-03A3-4
Power Output 0.75 kW (1 HP) at High Overload / 1.1 kW (1.5 HP) Fan & Pump Duty
Phase 3-phase
Output Current (HO / ND) 3.3 A
Series ACS550
Type Variable Frequency Drive (VFD)
Enclosure IP21
Control Type VxF and Sensorless Vector Control
Mounting Type Cubicle-mounted
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ABB ACS550-01-03A3-4 Inverter Drive – 0.75kW/1.1kW, IP21

The ABB ACS550-01-03A3-4 inverter drive offers dependable control for motors up to 1.1 kW in small-scale industrial and commercial systems, delivering precision performance in a compact R1 frame. With support for both VxF and sensorless vector control, integrated Modbus RTU, and user-friendly keypad access, this ABB VFD is ideal for small fans, pumps, and process equipment.

Technical Specifications

Model ACS550-01-03A3-4
Series ACS550
Type Variable Frequency Drive (VFD)
Power Output 0.75 kW (1 HP) at High Overload / 1.1 kW (1.5 HP) Fan & Pump Duty
Enclosure IP21
Mounting Cubicle Mount
Application HVAC, compact pumps, laboratory systems, and light-duty automation

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) 3.3 A
Overload Capacity 150% for 60 s (HO) / 110% for 60 s (ND)
Control Type VxF and Sensorless Vector Control
Brake Chopper External resistor required (120–641 Ω)
Heat Dissipation Max 40 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

EMC Compliance IEC EN61800-3:2004 (C3/C2)
Manufacturing Standards ISO 9001, ISO 14001
Standards & approvals CE CertifiedUL / cUL ListedRoHS Compliant

Replacement Information

The ABB ACS550 series was succeeded by the ABB ACS580 in January 2018 Equivalent ACS580 models available with enhanced control and energy efficiency

Related Products & Helpful Links

Frequently Asked Questions

How can I check whether ACS550-01-03A3-4 is the correct replacement?

Check the motor rating, supply voltage, drive output current, enclosure rating and control interface against your existing installation or the relevant manufacturer datasheet.

How quickly can ACS550-01-03A3-4 be delivered?

This product is listed as in stock, with estimated UK delivery in 3–5 working days. Delivery depends on order confirmation, courier services and destination.

Where can I check specifications and compatibility?

Review the specification information above and the product’s Downloads or Data Sheets tab, where documents are supplied. Our team can help check part numbers and installation compatibility.

What warranty does Drive Outlet Megastore offer?

Drive Outlet offers its own 2-year return-to-base warranty unless otherwise stated. Manufacturer warranties may not apply; please review the Terms and Conditions before ordering.

Weight 6.5 kg

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ACS550-User-Manual.pdfABB-ACS550-01-Quick-Start-1.pdf

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