Danfoss 134U6985 VLT HVAC Drive FC 102, a 7.5 kW three-phase variable frequency drive with Safe Stop, IP20 chassis enclosure and MCB-101 general purpose I/O for HVAC motor control, pumps, fans and compressors.
The Danfoss 134U6985 is a compact and efficient variable frequency drive (VFD) from the Danfoss VLT® HVAC Drive FC 102 series, designed for precise motor control in heating, ventilation, air conditioning and refrigeration applications. Built for commercial and industrial HVAC systems, it helps optimise energy use, improve motor control and reduce operating costs.
As part of the Danfoss VLT® HVAC Drive range, the 134U6985 includes dedicated functionality for pumps, fans and compressors. Its integrated Safe Stop function, EMC filtering, graphical local control panel and MCB-101 general purpose I/O option support dependable operation, straightforward commissioning and flexible integration into HVAC control systems.
With a rated output power of 7.5 kW (10 HP) and a three-phase 380–480 V AC supply, the Danfoss 134U6985 is suited to panel-mounted HVAC motor control applications. The IP20 / chassis enclosure is designed for installation inside suitable electrical cabinets, motor control centres and protected plant room environments.
Key Advantages
Dedicated HVAC variable frequency drive for fans, pumps and compressors.
7.5 kW (10 HP) power rating for HVAC motor control applications.
Three-phase 380–480 V AC input for industrial and commercial installations.
IP20 / chassis enclosure suitable for cabinet and panel-mounted installations.
Safe Stop functionality supports safer system operation.
MCB-101 general purpose I/O provides additional control flexibility.
Graphical local control panel for setup and monitoring.
No A option fitted.
MCB-101 general purpose I/O fitted.
Not coated PCB.
No mains option fitted.
A3 frame size for compact panel-mounted HVAC installations.
Efficient Motor Control for HVAC Systems
Variable frequency drives such as the Danfoss 134U6985 regulate motor speed by adjusting output frequency and voltage. This allows HVAC equipment to respond accurately to system demand, helping reduce energy use while improving control of airflow, pressure, temperature and water circulation.
The FC 102 series is developed for HVAC and building services environments where energy savings, reliability and straightforward commissioning are essential. With integrated Safe Stop, EMC filtering and additional general purpose I/O, the 134U6985 supports efficient operation in modern HVAC control panels and building services installations.
Typical Applications
Air handling units and ventilation systems.
Commercial HVAC plant rooms.
Industrial fans and blowers.
Heating and chilled water circulation pumps.
Cooling towers and condenser systems.
Refrigeration and compressor control systems.
Panel-mounted HVAC motor control installations.
Technical Specifications
Power
7.5 kW
Voltage
480 V
Phase
Three Phase
IP Rating
IP20
Series
VLT® HVAC Drive FC 102
Type code
FC-102P7K5T4E20H3TGXXXXSXXXXAXBKCXXXXDX
Product type
Variable frequency drive
Rated output power
7.5 kW
Horsepower rating
10 HP
Input voltage
380–480 V AC
Input phases
Three-phase
Output phases
Three-phase
Application
HVAC motor control
Protection rating
IP20 / chassis
RFI filter
Class A1/B (C1)
Brake / safety function
Safe Stop
A option
No A option
B option
MCB-101 general purpose I/O
Local control panel
Graphical LCP
PCB coating
Not coated PCB
Mains option
No mains option
Frame size
A3
Dimensions (H × W × D)
approx. 268 × 130 × 205 mm
Barcode
5710108030308
EMC Filter
Commercial
Frequently Asked Questions
What is the Danfoss 134U6985 used for?
The Danfoss 134U6985 is used to control the speed of three-phase AC motors in HVAC applications such as fans, pumps, compressors and ventilation systems.
What motor power is supported by this drive?
This drive is rated for 7.5 kW (10 HP) motor control applications.
What supply voltage does the drive require?
The 134U6985 operates from a three-phase 380–480 V AC supply.
What enclosure rating does this drive have?
The drive has an IP20 / chassis enclosure, making it suitable for installation inside protected electrical cabinets and control panels.
Does the Danfoss 134U6985 include additional I/O?
Yes, this model includes an MCB-101 general purpose I/O option for additional control flexibility in HVAC systems.
Trusted by HVAC Engineers Worldwide
Danfoss VLT® HVAC drives are widely used by building services engineers, facilities teams and HVAC contractors to deliver reliable motor control, energy savings and dependable performance in modern heating, ventilation and cooling systems.
Power
7.5 kW
Voltage
480 V
Phase
Three Phase
IP Rating
IP20
Series
VLT® HVAC Drive FC 102
Type code
FC-102P7K5T4E20H3TGXXXXSXXXXAXBKCXXXXDX
Product type
Variable frequency drive
Rated output power
7.5 kW
Horsepower rating
10 HP
Input voltage
380–480 V AC
Input phases
Three-phase
Output phases
Three-phase
Application
HVAC motor control
Protection rating
IP20 / chassis
RFI filter
Class A1/B (C1)
Brake / safety function
Safe Stop
A option
No A option
B option
MCB-101 general purpose I/O
Local control panel
Graphical LCP
PCB coating
Not coated PCB
Mains option
No mains option
Frame size
A3
Dimensions (H × W × D)
approx. 268 × 130 × 205 mm
Barcode
5710108030308
EMC Filter
Commercial
No documents available for this product.
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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...