SKU: 131B6976Alt SKU: FC-102P37KT4E55H3XGXXXXSXXXXAXBXCXXXXDXMPN: 131B6976
VLT HVAC Drive FC102

131B6976 Danfoss VLT FC-102 HVAC Drive 37 KW / 50 HP, 380 – 480 VAC, IP55

Danfoss 131B6976 VLT HVAC Drive FC-102, a 37 kW three-phase AC variable frequency drive designed for HVAC motor control, pumps, fans, compressors and building automation systems.

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Why Choose the Danfoss 131B6976 VLT® HVAC Drive FC-102?

The Danfoss 131B6976 is a dependable and energy-efficient AC variable frequency drive (VFD) designed for precise motor speed control in HVAC, ventilation, heating and refrigeration applications. As part of the proven Danfoss VLT® HVAC Drive FC-102 series, it is engineered to improve system efficiency, reduce energy consumption and deliver reliable performance in commercial and industrial environments.

This drive provides intelligent HVAC motor control with application-focused functionality for pumps, fans, compressors and air handling equipment. Its robust construction and flexible configuration make it suitable for building automation systems, plant rooms and industrial HVAC installations requiring dependable long-term operation.

With a rated output power of 37 kW / 50 HP and a three-phase 380–480 V AC supply, the Danfoss 131B6976 is ideal for medium-to-large HVAC motors. Its IP55 / Type 12 enclosure provides enhanced protection for demanding indoor environments and installations where greater environmental resistance is required.

Key Advantages

  • Purpose-built HVAC variable frequency drive for commercial and industrial applications.
  • 37 kW / 50 HP motor power rating suitable for pumps, fans and compressors.
  • Three-phase 380–480 V AC input compatible with industrial power systems.
  • IP55 / Type 12 enclosure for enhanced environmental protection.
  • Integrated RFI Class A1/B (C1) filter for improved electromagnetic compatibility.
  • Efficient speed control helps reduce energy use, noise and mechanical wear.

Key Features

  • Danfoss VLT® HVAC Drive FC-102 series.
  • 37 kW rated output power.
  • 50 HP motor power rating.
  • 73 A continuous output current.
  • Three-phase 380–480 V AC input supply.
  • IP55 / Type 12 enclosure.
  • C1 frame size.
  • Integrated RFI Class A1/B (C1) filter.
  • No brake chopper configuration.
  • Latest release standard software installed.

Reliable HVAC Motor Control and Energy Efficiency

Variable frequency drives such as the Danfoss FC-102 regulate motor speed by adjusting output voltage and frequency. This allows HVAC equipment to operate only as fast as required, improving energy efficiency while reducing mechanical stress on motors, fans, pumps and compressors.

The FC-102 series is specifically designed for HVAC professionals who require dependable performance, straightforward commissioning and integration with modern building management systems. Its application-focused features help optimise ventilation, heating, refrigeration and pumping systems across a wide range of installations.

Typical Applications

  • Air handling units and ventilation systems.
  • HVAC pumps and circulation systems.
  • Cooling towers and condenser fans.
  • Compressors and refrigeration equipment.
  • Commercial building management systems.
  • Industrial HVAC and process cooling applications.

Technical Specifications

Power 37 kW
Voltage 480 V
Phase Three Phase
IP Rating IP55
Series VLT® HVAC Drive FC-102
Part Number 131B6976
Product type AC variable frequency drive
Rated output power 37 kW / 50 HP
Continuous output current 73 A
Input voltage 380–480 V AC
Input phases 3-phase
Output phases 3-phase
Frequency 50 / 60 Hz
Protection rating IP55 / Type 12
Frame size C1
RFI filter Class A1/B (C1)
Brake chopper No brake chopper
PCB coating Not coated PCB
Mains option No mains option
Dimensions (H × W × D) approx. 685 × 308 × 311 mm
Net weight approx. 39.79 kg

Frequently Asked Questions

What is the Danfoss 131B6976 used for?

This drive is used to control AC motors in HVAC systems, including fans, pumps, compressors, ventilation systems and refrigeration equipment.

What motor power is supported by this drive?

The Danfoss 131B6976 supports motors rated up to 37 kW / 50 HP.

What supply voltage does the drive require?

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

What enclosure protection does this model have?

This model features an IP55 / Type 12 enclosure, making it suitable for demanding indoor HVAC and plant room installations.

Does the Danfoss 131B6976 include EMC filtering?

Yes, this drive includes an integrated RFI Class A1/B (C1) filter for improved electromagnetic compatibility.

Trusted by HVAC Professionals Worldwide

Danfoss VLT® HVAC Drives are trusted by building services engineers, contractors and automation specialists to deliver efficient motor control, reliable operation and long-term HVAC performance.

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