ACS550-01-012A-4 ABB Variable Frequency Inverter -40 °C To 85 °C 18.5 / 22kw
ACS550-01-012A-4 Description
The ACS550-01-012A-4 is a compact, general-purpose three-phase AC variable frequency drive designed for speed and torque control of induction motors. It operates from a 380–480 V AC three-phase supply with a rated output current of 12 A, suitable for driving 5.5 kW (Normal Duty) and 4 kW (Heavy Duty) motors. Equipped with direct torque control (DTC), built-in protection, and standard communication interfaces, it provides stable, energy-efficient operation for pumps, fans, conveyors, and small industrial machines.
ACS550-01-012A-4 Key Features
- Advanced DTC (Direct Torque Control) and scalar V/f control for high dynamic performance
- Dual rating: 5.5 kW ND / 4 kW HD, flexible for various load types
- Built-in RS485 Modbus RTU for easy PLC and system integration
- Integrated braking chopper for fast deceleration control
- Built-in EMC filter to reduce electromagnetic interference
- Comprehensive protection: overcurrent, overvoltage, undervoltage, overtemperature, motor overload
- User-friendly control panel for parameter setting, monitoring and fault diagnosis
- Robust construction suitable for continuous industrial operation
- Compact wall-mounted design for easy cabinet installation
ACS550-01-012A-4 Materials & Applications
Materials
- Housing: Cold-rolled steel with powder coating, high mechanical strength and corrosion resistance
- Power module: High-performance IGBT power switches with low loss
- Heat sink: Extruded aluminum alloy for efficient heat dissipation
- Cooling: Long-life DC fan for forced air cooling
- PCB: Industrial-grade FR-4 circuit board with stable anti-interference performance
- Terminals: Nickel-plated copper screw terminals, high current capacity and vibration resistance
Typical Applications
- Pumps, fans, blowers (HVAC, water supply, wastewater treatment)
- Conveyors, belt drives, material handling equipment
- Small mixers, agitators, compressors
- Packaging machines, textile machines
- General small automation machinery
- Machine tool auxiliary axes
ACS550-01-012A-4 Important Parameters
| Parameter |
Specification |
| Part Number |
ACS550-01-012A-4 |
| Series |
ACS550 General Purpose AC Drive |
| Input Voltage |
3-phase AC 380–480 V, 50/60 Hz |
| Rated Output Current |
12 A |
| Normal Duty (ND) |
5.5 kW |
| Heavy Duty (HD) |
4 kW |
| Output Frequency Range |
0–500 Hz |
| Control Method |
DTC, V/f scalar control |
| Overload (ND) |
110% for 60 s / 10 min |
| Overload (HD) |
150% for 60 s / 10 min |
| Braking Chopper |
Built-in |
| EMC Filter |
Built-in |
| Communication |
RS485 (Modbus RTU) |
| Protection Degree |
IP20 |
| Cooling |
Forced air cooling |
| Operating Temperature |
-10 °C to +50 °C |
| Storage Temperature |
-25 °C to +70 °C |
| Humidity |
5–95% RH, non-condensing |
| Frame Size |
R1 |
| Dimensions (W×H×D) |
85 × 235 × 185 mm |
| Weight |
Approx. 2.5 kg |
| Certifications |
CE, UL, cUL, RoHS |
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WTL is not liable for any personal injury or property damage resulting from the use of this equipment. It is
buyer's responsibility as to the safe handling & operation of this equipment and to verify equipment is
compliance to their machinery.
