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131F5779 Danfoss VLT FC-102 HVAC Drive 90 KW / 125 HP, 380 - 480 VAC, IP21

MPN: 131F5779

Alt. SKU: FC-102P90KT4E21H3XGX1XXSXXXXAXBXCXXXXDX

Special Price £9,425.70 £7,854.75 Regular Price £12,567.60

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Why Choose the Danfoss 131F5779 VLT® HVAC Drive FC-102?

The Danfoss 131F5779 is a powerful and energy-efficient AC variable speed drive (VSD) designed for precise motor control in heating, ventilation, air conditioning and refrigeration applications. As part of the advanced Danfoss VLT® HVAC Drive FC-102 series, it is engineered to optimise HVAC system performance while helping reduce energy consumption, mechanical stress and operating costs.

This drive provides dedicated HVAC functionality, dependable motor regulation and flexible integration into building automation and industrial control systems. The FC-102 platform is widely used in commercial buildings, industrial facilities and plant rooms where reliable high-power motor control and long-term operational efficiency are essential.

With a rated output power of 90 kW and a three-phase 380–480 V AC supply, the 131F5779 is ideal for large fans, pumps, compressors and air handling equipment. Its IP21 / Type 1 enclosure with mains disconnect makes it suitable for demanding HVAC installations requiring protected drive operation and convenient isolation.

Key Advantages

  • Dedicated HVAC variable speed drive for large building services and climate control systems.
  • 90 kW / 125 HP power rating suitable for high-power HVAC motors.
  • Three-phase 380–480 V AC input compatible with industrial power systems.
  • IP21 / Type 1 enclosure for protected installation environments.
  • Integrated RFI Class A1/B (C1) filter for enhanced EMC performance.
  • Mains disconnect included for convenient electrical isolation.

Key Features

  • Danfoss VLT® HVAC Drive FC-102 series.
  • 90 kW rated output power.
  • 125 HP motor rating.
  • Three-phase 380–480 V AC supply voltage.
  • IP21 / Type 1 enclosure.
  • RFI Class A1/B (C1) integrated filter.
  • Graphical Local Control Panel for commissioning and monitoring.
  • Mains disconnect fitted.
  • No brake chopper configuration.
  • Designed for HVAC, ventilation, pumps and refrigeration applications.

Technical Specifications

  • Manufacturer: Danfoss
  • Series: VLT® HVAC Drive FC-102
  • Model: 131F5779
  • Model code: FC-102P90KT4E21H3XGX1XXSXXXXAXBXCXXXXDX
  • Product type: AC variable speed drive / frequency converter
  • Rated output power: 90 kW
  • Horsepower rating: 125 HP
  • Input voltage: 380–480 V AC
  • Input phases: 3-phase
  • Frequency: 50 / 60 Hz
  • Protection rating: IP21 / Type 1
  • Frame size: C2
  • EMC filter: RFI Class A1/B (C1)
  • Brake chopper: No brake chopper
  • Control panel: Graphical Local Control Panel
  • PCB coating: Not coated PCB
  • Mains option: Mains disconnect
  • Software: Latest release standard software

Reliable Motor Control for High-Power HVAC Systems

Variable speed drives such as the Danfoss VLT® HVAC Drive FC-102 regulate motor speed by adjusting output frequency and voltage. This allows HVAC equipment to match real system demand, helping reduce energy use, improve system stability and extend the service life of motors and mechanical components.

The 131F5779 is well suited to larger HVAC installations requiring dependable speed control and efficient operation. Its IP21 enclosure, integrated EMC filtering and mains disconnect option make it a strong choice for plant rooms, engineered building services systems and industrial ventilation applications.

Typical Applications

  • Large air handling units and ventilation systems.
  • HVAC pump and circulation systems.
  • Building management systems.
  • Chillers and cooling plant.
  • Refrigeration and climate control equipment.
  • Industrial fans, blowers and process ventilation.

Frequently Asked Questions

What is the Danfoss 131F5779 used for?

The Danfoss 131F5779 is used to control the speed of AC motors in HVAC applications such as fans, pumps, air handling units, chillers and refrigeration systems.

What motor power is supported by this drive?

The drive supports motors with a rated output power of approximately 90 kW / 125 HP.

What supply voltage does the drive require?

The 131F5779 operates from a three-phase 380–480 V AC supply.

What enclosure rating does this drive have?

The drive has an IP21 / Type 1 enclosure rating, making it suitable for protected HVAC and industrial installation environments.

Does the Danfoss 131F5779 include a mains disconnect?

Yes, this configuration includes a mains disconnect option for convenient electrical isolation.

Trusted by HVAC Engineers Worldwide

Danfoss VLT® HVAC Drives are trusted by building services engineers, facilities managers and industrial automation professionals for reliable motor control, energy savings and long-term performance in demanding HVAC applications.
More Information
Manufacturer Part Number 131F5779
Barcode 5702427455917
Height 770mm
Width 370mm
Depth 335mm
Filter Filter Included
Input Phases Three Phase
Degree of protection (IP) IP21
KW Rating 90kW
Output Phases Three phase
VSD Range Danfoss VLT FC102
Manufacturer Danfoss
Alternative Product SKU FC-102P90KT4E21H3XGX1XXSXXXXAXBXCXXXXDX
Write Your Own Review
You're reviewing:131F5779 Danfoss VLT FC-102 HVAC Drive 90 KW / 125 HP, 380 - 480 VAC, IP21

The VLT HVAC drive has built-in intelligence to give optimal process control to heating, ventilation and air conditioning (HVAC). It is simple to use and extremely cost-efficient, featuring a number of functions that are ideal for use with pumps, fans and compressors to save energy, meet environmental regulations and reduce costs in modern buildings.

The VLT HVAC drive has a compact, robust design and is ideally suited to locations where space is restricted. A selection of safety features, such as Safe Torque Off and Safe Maximum Speed, protect both applications and their operators.

Enclosures can be purchased separately, up to IP66, and an additional option available upon purchase is a unique coating to provide added protection for the circuit boards. Integrated DC chokes and RFI filters safeguard installations by minimizing harmonic distortion and electromagnetic.

Supply voltages and power range

3 x 200-240 V...1.1-45 kW

3 x 380-480 V...1.1 kW – 1 MW

3 x 525-600 V...1.1-90 kW

3 x 525-690 V...45 kW – 1.4 MW

Low harmonic drive

3 x 380-480 V...132-710 kW

12-pulse drive

3 x 380-480 V...250-200kW

Features and benefits

  • There’s no need for external cooling or oversizing as the maximum ambient temperature is 50°C without derating
  • PLC capacity is often unnecessary thanks to the Smart Logic Controller 
  • A low initial investment and easy upgrades are possible thanks to the modular concept with a wide range of options
  • The need for external control and conversion equipment is avoided due to integrated pump, fan and compressor functionality
  • 5–15% energy is saved as a result of the Automatic Energy Optimization function
  • Less gateway solutions are needed thanks to a wide range of HVAC protocols for building management system controller connectivity

 

Applications

Pumps, fans, compressors.

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For further information on this product please get in touch with our team or visit the Danfoss website.