ACH480-04-039A-4 ABB 18.5kW Three Phase ABB ACH480 Variable Speed Drive
ABB ACH480-04-039A-4 HVAC drive, an 18.5 kW three phase AC variable frequency drive designed for fans, pumps, compressors, air-handling units and building services motor control.
The ABB ACH480-04-039A-4 (Product ID 3AXD50000275731) is a compact and reliable AC variable frequency drive (VFD) designed for efficient motor control in heating, ventilation and air conditioning applications. As part of the advanced ABB ACH480 HVAC drive series, it provides dependable speed regulation for fans, pumps, compressors and air-handling equipment.
This drive is engineered to support energy-efficient HVAC operation while simplifying installation and commissioning. The ACH480 series includes built-in HVAC functionality, integrated safety features and communication capability, making it suitable for building services, plant rooms and industrial climate control systems.
With a rated output power of 18.5 kW and a three-phase 380–480 V AC supply, the ACH480-04-039A-4 is ideal for medium-power HVAC motor applications. Its compact IP20 module design allows straightforward installation in control panels and electrical cabinets.
Key Advantages
Compact variable frequency drive designed for HVAC applications.
18.5 kW motor power rating suitable for fans, pumps and compressors.
Three-phase 380–480 V AC input compatible with industrial and building services power systems.
Integrated Safe Torque Off (STO) safety function.
Built-in EMC filter for installation compatibility.
Designed for smooth, energy-efficient HVAC motor control.
Compact cabinet-mounted format for control panel installations.
Key Features
ABB ACH480 HVAC drive series.
18.5 kW rated output power.
38 A nominal output current.
Three-phase 380–480 V AC input supply.
Integrated Safe Torque Off (STO) functionality.
Built-in RS-485 communication interface.
Support for HVAC communication protocols including BACnet and Modbus.
Output frequency range up to 599 Hz.
IP20 protection rating.
Efficient HVAC Motor Control
Variable frequency drives such as the ABB ACH480 regulate motor speed by adjusting output voltage and frequency. In HVAC systems, this enables fans and pumps to operate according to demand, helping reduce energy consumption while improving comfort, process stability and equipment life.
The ACH480 series is designed for building automation engineers, panel builders and facility operators who need reliable HVAC control with simple commissioning. Its built-in HVAC functions and communication options make it suitable for modern building management systems and plant room installations.
Typical Applications
HVAC fans and ventilation systems.
Air-handling units.
Chilled water and heating pumps.
Compressors and HVAC plant equipment.
Building services and facilities management systems.
Industrial climate control systems.
Control panels and plant room installations.
Technical Specifications
Power
18.5 kW
Current
38 A
Voltage
480 V
Phase
Three Phase
IP Rating
IP20
Series
ACH480 HVAC Drives
Product ID
3AXD50000275731
EAN
6438177541837
Product type
AC variable frequency drive
Rated output power
18.5 kW
Rated output current
38 A
Input voltage
380–480 V AC
Input phases
3-phase
Frequency
48–63 Hz
Output frequency
0–599 Hz
Protection rating
IP20
Mounting type
Wall / cabinet mounting
Frame size
R4
Dimensions (H × W × D)
approx. 240 × 262 × 213 mm
Weight
approx. 5.6 kg
EMC Filter
None
Frequently Asked Questions
What is the ABB ACH480-04-039A-4 used for?
This drive controls the speed and torque of three-phase AC motors used in HVAC applications such as fans, pumps, compressors and air-handling units.
What motor power is supported by this drive?
The drive supports motors with a rated output power of approximately 18.5 kW.
What supply voltage does the drive require?
The ACH480-04-039A-4 operates from a three-phase 380–480 V AC supply.
Does this drive support HVAC communication protocols?
Yes, the drive supports HVAC communication options including BACnet and Modbus, making it suitable for building automation systems.
Where is this drive typically installed?
The drive is typically installed inside electrical control panels, HVAC control cabinets or plant room installations.
Trusted by HVAC Engineers Worldwide
ABB ACH480 HVAC drives are widely used by building services engineers, panel builders and facility operators to deliver efficient motor control, reliable operation and seamless integration with modern HVAC systems.
Power
18.5 kW
Current
38 A
Voltage
480 V
Phase
Three Phase
IP Rating
IP20
Series
ACH480 HVAC Drives
Product ID
3AXD50000275731
EAN
6438177541837
Product type
AC variable frequency drive
Rated output power
18.5 kW
Rated output current
38 A
Input voltage
380–480 V AC
Input phases
3-phase
Frequency
48–63 Hz
Output frequency
0–599 Hz
Protection rating
IP20
Mounting type
Wall / cabinet mounting
Frame size
R4
Dimensions (H × W × D)
approx. 240 × 262 × 213 mm
Weight
approx. 5.6 kg
EMC Filter
None
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
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If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...