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131B6973-400 KW / 550 HP, 380 - 480 VAC, IP54 / Type 12,RFI Class A2 (C3), No brake chopper, No Mains OptionNo A Option, No B Option, Coated PCB

MPN: 131B6973

Alt. SKU: FC-102P400T4E54H2XGCXXXSXXXXAXBXCXXXXDX

Special Price £38,911.50 £32,426.25 Regular Price £51,882.00

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Why Choose the Danfoss 131B6973 VLT® HVAC Drive FC-102?

The Danfoss 131B6973 is a powerful and highly efficient AC variable frequency drive (VFD) designed for demanding HVAC and industrial motor control applications. As part of the advanced Danfoss VLT® HVAC Drive FC-102 series, it is engineered to deliver precise motor speed regulation, enhanced energy efficiency and reliable operation for large-scale ventilation, heating, cooling and pumping systems.

Developed specifically for HVAC applications, the FC-102 series incorporates intelligent control functions for pumps, fans and compressors. Its advanced monitoring capabilities and application-focused design help reduce energy consumption, minimise maintenance requirements and optimise overall system performance.

With a rated output power of 400 kW / 550 HP and a three-phase 380–480 V AC supply, the Danfoss 131B6973 is ideal for high-capacity HVAC equipment and industrial processes. Its IP54 / Type 12 enclosure provides excellent protection for installation in demanding environments.

Key Advantages

  • High-performance HVAC variable frequency drive for large-scale motor control.
  • 400 kW / 550 HP motor power rating suitable for demanding applications.
  • Three-phase 380–480 V AC input compatible with industrial power systems.
  • IP54 / Type 12 enclosure for enhanced environmental protection.
  • Integrated RFI Class A2 (C3) filter for EMC compliance.
  • Energy-efficient operation helps reduce running costs and equipment wear.

Key Features

  • Danfoss VLT® HVAC Drive FC-102 series.
  • 400 kW rated output power.
  • 550 HP motor power rating.
  • Three-phase 380–480 V AC input supply.
  • IP54 / Type 12 enclosure.
  • RFI Class A2 (C3) filter.
  • Graphical local control panel.
  • Coated PCB for increased durability.
  • No brake chopper configuration.
  • Latest release standard software installed.

Technical Specifications

  • Manufacturer: Danfoss
  • Series: VLT® HVAC Drive FC-102
  • Part Number: 131B6973
  • Model: FC-102P400T4E54H2XGCXXXSXXXXAXBXCXXXXDX
  • Product type: AC variable frequency drive
  • Rated output power: 400 kW / 550 HP
  • Input voltage: 380–480 V AC
  • Input phases: 3-phase
  • Output phases: 3-phase
  • Frequency: 50 / 60 Hz
  • Protection rating: IP54 / Type 12
  • Frame size: E1
  • RFI filter: Class A2 (C3)
  • Control panel: Graphical local control panel
  • Brake chopper: No brake chopper
  • PCB coating: Coated PCB
  • Mains option: No mains option
  • Dimensions (H × W × D): approx. 2000 × 600 × 505 mm
  • Net weight: approx. 257 kg

Reliable High-Power HVAC Motor Control

Variable frequency drives such as the Danfoss FC-102 regulate motor speed by adjusting output voltage and frequency. This enables significant energy savings while improving process control and reducing mechanical stress on motors, pumps, fans and compressors.

The FC-102 series is specifically developed for HVAC applications and includes dedicated functionality for ventilation, heating and refrigeration systems. Its intelligent design supports modern building management systems while helping operators achieve lower lifecycle costs and greater operational reliability.

Typical Applications

  • Large air handling units and ventilation systems.
  • Industrial and commercial pumping systems.
  • Cooling towers and condenser fans.
  • Large refrigeration and compressor installations.
  • Building management and automation systems.
  • Industrial HVAC and process cooling applications.

Frequently Asked Questions

What is the Danfoss 131B6973 used for?

This drive is designed for controlling large AC motors used in HVAC systems, including pumps, fans, compressors and ventilation equipment.

What motor power is supported by this drive?

The Danfoss 131B6973 supports motors rated up to 400 kW / 550 HP.

What supply voltage does the drive require?

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

What enclosure protection does the drive offer?

The unit features an IP54 / Type 12 enclosure designed to provide enhanced protection in demanding industrial and commercial environments.

Does the drive include a local control panel?

Yes, this model includes a graphical local control panel for easy setup, monitoring and operation.

Trusted by HVAC Professionals Worldwide

Danfoss VLT® HVAC Drives are widely used by building services engineers, contractors and automation specialists to deliver reliable motor control, energy efficiency and long-term operational performance in critical HVAC applications.
More Information
Manufacturer Part Number 131B6973
Barcode 5702427350403
Filter Filter Included
Input Phases Three Phase
Degree of protection (IP) IP54
KW Rating 400kW
Output Phases Three phase
VSD Range Danfoss VLT FC102
Manufacturer Danfoss
Alternative Product SKU FC-102P400T4E54H2XGCXXXSXXXXAXBXCXXXXDX
Write Your Own Review
You're reviewing:131B6973-400 KW / 550 HP, 380 - 480 VAC, IP54 / Type 12,RFI Class A2 (C3), No brake chopper, No Mains OptionNo A Option, No B Option, Coated PCB

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.