131B8586 Danfoss VLT FC-102 HVAC Drive 37 KW / 50 HP, 380 - 480 VAC, IP55

Why Choose the Danfoss 131B8586 VLT® HVAC Drive FC-102?

The Danfoss 131B8586 is a powerful and energy-efficient AC variable speed drive (VSD) designed for precise motor control in heating, ventilation and air conditioning applications. As part of the proven Danfoss VLT® HVAC Drive FC-102 series, it is engineered to optimise the performance of fans, pumps, compressors and refrigeration equipment in commercial and industrial environments.

This drive provides accurate frequency control while helping reduce energy consumption, improve system stability and minimise mechanical wear. The FC-102 range includes dedicated HVAC functionality, flexible configuration options and a graphical local control panel for straightforward commissioning, monitoring and everyday operation.

With a rated output power of 37 kW (50 HP) and a three-phase 380–480 V AC supply, the Danfoss 131B8586 is ideal for demanding HVAC motors requiring dependable speed regulation. Its IP55 / Type 12 backplate enclosure provides reliable protection for plant rooms and industrial environments where dust and moisture resistance are required.

Key Advantages

• Dedicated variable speed drive for HVAC applications.
• 37 kW / 50 HP motor power rating for larger pumps, fans and ventilation systems.
• Three-phase 380–480 V AC input for commercial and industrial installations.
• IP55 / Type 12 backplate enclosure for protected operation in demanding environments.
• Integrated mains disconnect for safer isolation and maintenance.
• Graphical local control panel for setup, monitoring and operation.

Key Features

• Danfoss VLT® HVAC Drive FC-102 series.
• 37 kW / 50 HP rated output power.
• 73 A / 65 A continuous output current.
• 80.3 A / 71.5 A intermittent output current.
• Three-phase 380–480 V AC input supply.
• IP55 / Type 12 backplate enclosure rating.
• H3 RFI Class A1/B (C1) filter.
• Frame size C1 construction.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT® HVAC Drive FC-102
• Model: FC-102P37KT4P55H3XGX1XXSXXXXAXBXCXXXXDX
• SKU: 131B8586
• Product type: Variable speed drive / frequency converter
• Rated output power: 37 kW / 50 HP
• Input voltage: 380–480 V AC
• Input phases: 3-phase
• kVA rating: 50.6 kVA
• Continuous output current: 73 A / 65 A
• Intermittent output current: 80.3 A / 71.5 A
• Power loss: 739 W
• Protection rating: IP55 / Type 12 Backplate
• RFI filter: H3, 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
• Frame size: C1

Efficient Motor Control for HVAC Systems

Variable speed drives such as the Danfoss FC-102 control motor speed by adjusting output voltage and frequency. This enables HVAC equipment to operate according to actual demand, helping reduce wasted energy while improving comfort control and system reliability.

The FC-102 series is designed specifically for HVAC duty, with application-focused functions for fans, pumps, compressors and refrigeration equipment. Its IP55 enclosure, integrated filtering and user-friendly graphical interface make the 131B8586 suitable for contractors, building services engineers and facility managers seeking dependable long-term performance.

Typical Applications

• Air handling units and large ventilation systems.
• HVAC pumps and circulating systems.
• Fan speed control in commercial buildings.
• Cooling and refrigeration equipment.
• Plant room motor control systems.
• Industrial heating, ventilation and refrigeration applications.

Trusted by HVAC Engineers Worldwide

Danfoss VLT® HVAC Drives are widely used by building services engineers, facility managers and industrial contractors to deliver efficient motor control, dependable operation and reduced energy consumption across HVAC installations.