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ABB ACS355-03E-01A9-4 Inverter Drive – 0.55kW, 3PH, IP20

£569.94

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  • Versatile Motor Control: Supports both induction and PM motors.
  • Advanced Safety: STO built-in as standard.
  • Compact Integration: R1 frame size fits in tight spaces.
  • Full Fieldbus Compatibility: Easily connects to major automation systems.
  • High Energy Efficiency: Up to 97.3% under high-load operation.
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ABB ACS355-03E-01A9-4 Inverter Drive – 0.55 kW, 3PH, IP20

The ABB ACS355-03E-01A9-4 is a compact, high-performance 0.55 kW inverter drive ideal for controlling 3-phase AC motors in light industrial machinery. Engineered for energy efficiency and advanced motor control, it features ABB’s robust sensorless vector control, integrated Safe Torque Off (STO) safety functionality, and universal compatibility with industry-standard communication protocols.

Suited to space-limited cabinet installations (R1 frame), the ACS355-03E-01A9-4 is a versatile solution for OEMs and integrators seeking reliable, efficient drive control in the 380–480 V voltage range.


Technical Specifications

Model: ACS355-03E-01A9-4
Series: ABB ACS355
Drive Type: AC Variable Speed Drive (VSD)
Power Rating: 0.55 kW (0.75 HP)
Enclosure Type: IP20 / Open Type
Mounting: Cabinet / Panel Mount (R1 Frame)
Application Areas: Feeders, conveyors, packaging lines, textile automation, light-duty process control


Electrical Specifications

  • Input Voltage: 380–480 V AC (±10%)
  • Input Phase: 3-phase
  • Input Frequency: 50/60 Hz
  • Output Voltage: 0–480 V AC
  • Output Frequency: 0–600 Hz
  • Output Current (Nominal): 1.9 A
  • Apparent Output Power: 1.3 kVA
  • Efficiency Level: IE2
  • Power Loss (Standby): 7 W
  • Braking: Brake chopper built-in (external resistor optional)

I/O & Communication Interfaces

  • Analog Inputs: 2
  • Analog Outputs: 1
  • Digital Inputs: 5
  • Digital Outputs: 1
  • Relay Outputs: 1
  • Comm Ports: RS-232, RS-485
  • Supported Protocols: MODBUS, CAN, LON, PROFIBUS, DeviceNet, EtherNet/IP, PROFINET IO, TCP/IP
  • Expansion: Compatible with ABB plug-in fieldbus adapters and FlashDrop tools

Mechanical & Environmental

  • Frame Size: R1
  • Cooling Method: Air-cooled
  • Mounting Orientation: Vertical panel mount
  • Ambient Operating Temp: 0°C to +40°C (no derating)
  • Protection Rating: IP20
  • Weight: Approx. 1.2 kg

Efficiency Performance (IEC 61800-9-2)

Load Profile Efficiency (%)
No Load 0 / 25% 81.2%
No Load 0 / 50% 88.4%
No Load 0 / 100% 92.2%
Partial Load 50 / 25% 89.7%
Partial Load 50 / 50% 93.8%
Partial Load 50 / 100% 95.8%
High Load 90 / 50% 96.2%
High Load 90 / 100% 97.3%

Certification & Safety

  • CE Certified
  • UL / cUL Listed
  • Functional Safety: STO (Safe Torque Off) up to SIL 3
  • RoHS Compliant: Yes
  • EMC Standard Compliance: IEC/EN 61800-3 (C3)

Highlights & Key Benefits

Versatile Motor Control: Supports both induction and PM motors.

Advanced Safety: STO built-in as standard.

Compact Integration: R1 frame size fits in tight spaces.

Full Fieldbus Compatibility: Easily connects to major automation systems.

High Energy Efficiency: Up to 97.3% under high-load operation.


📦 Now In Stock at Drive Outlet Megastore

At Drive Outlet Megastore, we offer unbeatable ABB ACS355-03E-01A9-4 prices and fast dispatch. Whether you’re replacing an old drive or scaling up production, this 0.55 kW ABB model delivers unmatched reliability, connectivity, and control performance.

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Weight 1.5 kg
Dimensions 30 × 30 × 30 cm

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ABB is a global leader in industrial automation, motor control, and power technology. Known for exceptional reliability and performance, ABB products are widely used in manufacturing, energy, infrastructure, and automation systems worldwide.


At Drive Outlet Megastore, we stock a wide range of ABB automation products including inverter drives, soft starters, servo drives, PLC components, safety devices, power supplies, and replacement parts. Our selection includes both current and legacy ABB models, ensuring compatibility with existing systems and new installations.


ABB products are commonly used in conveyor systems, pumps, fans, robotics, packaging machinery, and industrial production lines. Their advanced technology, robust design, and long service life make them a trusted choice for demanding industrial applications.


We supply ABB products with fast delivery and competitive pricing, helping minimise downtime and maintain reliable system performance. If you’re unsure which ABB product is suitable for your application, our technical team can help you identify and select the correct model.

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Need the correct inverter drive for your application?

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  • Brake resistor / chopper and EMC advice included
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Looking for more options? View all ABB products or shop our full range of ABB ACS355-03E Inverter Drives — in stock and ready to ship!

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