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- ABB
- ACS550-01-125A-4 3ABD68589657
- Frequency Converter
- Sweden (SE)
- 814 x 360 x 315 mm
- 45 kg
- Xiamen, China
- New & In Stock
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- 1 Year
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The ABB ACS550-01-125A-4 (3ABD68589657) Frequency Converter is a high-performance variable frequency drive (VFD) designed to control the speed and torque of three-phase AC motors in industrial applications. It is part of ABB’s general-purpose drive family, widely recognized for its reliability, energy efficiency, and ease of use.
This drive is commonly applied in systems such as pumps, fans, and conveyors, where precise motor control and energy optimization are essential.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | ABB |
| Model | ACS550-01-125A-4 |
| Part Number | 3ABD68589657 |
| Product Type | Frequency Converter (VFD) |
| Rated Power | 55 kW |
| Rated Current | 125 A |
| Input Voltage | 380–480 V AC (3-phase) |
| Output Frequency | 0–500 Hz |
| Control Method | V/f control / Sensorless vector control |
| Protection Class | IP21 |
| Cooling Method | Air-cooled |
| Dimensions | 814 × 360 × 315 mm |
| Weight | 45 kg |
| Mounting Type | Wall-mounted / cabinet installation |
| Communication | Industrial communication protocols supported |
| Operating Environment | Industrial-grade |
Function and Working Principle
The ACS550-01-125A-4 functions as a motor speed control device by regulating the frequency and voltage supplied to the motor.
Its working process includes:
- Converting incoming AC power into DC through rectification
- Processing DC power within an internal DC bus
- Inverting DC back into adjustable AC output
- Regulating output frequency and voltage to control motor speed
- Monitoring system parameters to ensure stable operation
This enables smooth motor control, reduced energy consumption, and improved system efficiency.
Role in Industrial Control Systems
Within industrial automation systems, the ACS550 plays a key role:
- Acts as the primary motor speed control unit
- Optimizes energy usage in variable load applications
- Reduces mechanical stress during startup and shutdown
- Enhances process accuracy and stability
- Provides protection against overload, overvoltage, and faults
It is essential for efficient and reliable motor-driven systems.
Industrial Applications
The ABB ACS550-01-125A-4 is widely used in:
- HVAC systems (fans and pumps)
- Water treatment and pumping stations
- Conveyor systems and material handling
- Manufacturing and processing industries
- Power and energy systems
- Oil and gas facilities
It is ideal for applications requiring flexible and energy-efficient motor control.
Installation and System Integration
For optimal performance, the drive should be installed as follows:
- Mounted on walls or inside control cabinets
- Connected to a three-phase power supply
- Integrated with motors and control systems
- Installed with proper ventilation and spacing
- Configured using built-in control panels or engineering tools
Proper installation ensures long-term reliability and stable operation.
Compatible System Components
The ACS550-01-125A-4 typically works with:
- Three-phase AC motors
- PLC and DCS control systems
- Operator panels and HMIs
- Communication interface modules
- Braking resistors and protection devices
These components together form a complete motor control solution.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| ACS580 Series | Frequency Converter | Advanced control features | Modern systems |
| ACS510 Series | Frequency Converter | Cost-effective solution | HVAC applications |
| ACS800 Series | High-performance drive | Heavy-duty applications | Industrial systems |
| ACS550-01-157A-4 | Frequency Converter | Higher current rating | Large motor systems |
| ACH550 Series | HVAC Drive | Optimized for building systems | HVAC control |
Key Advantages
- Energy-efficient motor speed control
- Wide compatibility with industrial applications
- Built-in control features for easy commissioning
- Reliable and robust industrial design
- Supports multiple communication protocols
- Reduces maintenance and operational costs
Technical FAQs
What is the main function of this frequency converter?
It controls motor speed and torque by adjusting output frequency and voltage.
What motors can it be used with?
It is designed for standard three-phase AC induction motors.
Is it suitable for energy-saving applications?
Yes, it significantly improves energy efficiency in variable load systems.
Conclusion
The ABB ACS550-01-125A-4 (3ABD68589657) Frequency Converter is a reliable and efficient solution for industrial motor control. Its strong performance, flexible integration, and energy-saving capabilities make it a key component in modern automation systems.