Why Choose the Danfoss 131F9938 VLT® HVAC Drive FC-102?
The Danfoss 131F9938 is a powerful and efficient VLT® HVAC Drive FC-102 variable frequency drive (VFD) designed for precise motor control in heating, ventilation, air conditioning and refrigeration systems. As part of the trusted Danfoss VLT® HVAC Drive FC-102 series, it is engineered to help improve energy efficiency, optimise HVAC performance and provide dependable operation in commercial and industrial environments.
This drive provides dedicated HVAC functionality for fans, pumps and compressors, allowing motor speed to be accurately matched to real system demand. Its robust FC-102 design, integrated RFI filtering and straightforward local control interface make it suitable for plant rooms, control panels and energy-saving retrofit projects.
With a rated output power of 55 kW (75 HP) and a three-phase 380-480 V AC supply, the Danfoss 131F9938 is ideal for demanding HVAC applications requiring reliable speed control. The IP20 / chassis enclosure is designed for installation inside electrical cabinets and protected control panel environments.
Key Advantages
Dedicated HVAC variable frequency drive for fans, pumps and refrigeration systems.
55 kW (75 HP) motor power rating for larger building services applications.
Three-phase 380-480 V AC input suitable for commercial and industrial power systems.
IP20 / chassis enclosure for cabinet and control panel installation.
Integrated RFI Class A1/B filter for EMC compliance.
Numerical local control panel for setup, operation and monitoring.
Energy-efficient motor control helps reduce running costs.
Designed for reliable HVAC fan, pump and compressor control.
Key Features
Danfoss VLT® HVAC Drive FC-102 series.
55 kW rated output power.
75 HP motor rating.
Three-phase 380-480 V AC input supply.
IP20 / chassis protection rating.
Frame size C3.
Integrated RFI Class A1/B filter.
No brake chopper configuration.
Numerical local control panel.
No A option and no B option.
Not coated PCB.
No mains option.
Efficient Motor Control for HVAC Systems
Variable frequency drives such as the Danfoss FC-102 regulate motor speed by adjusting output voltage and frequency. This enables HVAC equipment to operate according to system demand, reducing unnecessary energy consumption while improving comfort, reliability and process control.
The Danfoss VLT® HVAC Drive FC-102 series is designed with HVAC-specific control features for ventilation, heating, cooling and refrigeration applications. Its panel-mounted chassis format, EMC filtering and reliable power handling make it a strong choice for building services engineers, HVAC contractors and control panel manufacturers.
Typical Applications
Large air handling units and ventilation systems.
Commercial HVAC fan control.
Heating and cooling circulation pumps.
Chilled water and condenser pump systems.
Refrigeration plant and compressor support systems.
Building services control panels.
Energy-saving HVAC retrofit projects.
Commercial and industrial facilities.
Technical Specifications
Power
55 kW
Voltage
480 V
Phase
Three Phase
IP Rating
IP20
Series
VLT® HVAC Drive FC-102
Part number
131F9938
Product type
Variable frequency drive
Rated output power
55 kW
Horsepower rating
75 HP
Input voltage
380-480 V AC
Input phases
Three phase
Application type
HVAC drive
Protection rating
IP20 / chassis
Frame size
C3
RFI filter
Class A1/B
Brake chopper
No
Control panel
Numerical local control panel
PCB coating
Not coated
Mains option
No mains option
Dimensions (H × W × D)
approx. 550 × 308 × 333 mm
Net weight
approx. 35.87 kg
EAN
5702427500464
Frequently Asked Questions
What is the Danfoss 131F9938 used for?
The Danfoss 131F9938 is used to control AC motors in HVAC systems, including fans, pumps, ventilation equipment and refrigeration applications.
What motor power does this drive support?
This drive is rated for 55 kW (75 HP) motors.
What supply voltage does the Danfoss 131F9938 require?
The drive operates from a three-phase 380-480 V AC supply.
What enclosure rating does this model have?
The Danfoss 131F9938 has an IP20 / chassis enclosure, making it suitable for installation inside control panels and electrical cabinets.
Does this drive include an RFI filter?
Yes, this configuration includes an integrated RFI Class A1/B filter to support EMC compliance in HVAC installations.
Trusted by HVAC Engineers Worldwide
Danfoss VLT® HVAC Drives are widely used by building services engineers, HVAC contractors and facilities teams to deliver reliable motor control, reduced energy consumption and efficient system operation.
Power
55 kW
Voltage
480 V
Phase
Three Phase
IP Rating
IP20
Series
VLT® HVAC Drive FC-102
Part number
131F9938
Product type
Variable frequency drive
Rated output power
55 kW
Horsepower rating
75 HP
Input voltage
380-480 V AC
Input phases
Three phase
Application type
HVAC drive
Protection rating
IP20 / chassis
Frame size
C3
RFI filter
Class A1/B
Brake chopper
No
Control panel
Numerical local control panel
PCB coating
Not coated
Mains option
No mains option
Dimensions (H × W × D)
approx. 550 × 308 × 333 mm
Net weight
approx. 35.87 kg
EAN
5702427500464
No documents available for this product.
Delivery
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Standard delivery: 2–3 working days
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Returns
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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...