131X2421 Danfoss VLT FC-102 HVAC Drive 5.5 KW / 7.5 HP, 380 - 480 VAC, IP20

Why Choose the Danfoss 131X2421 VLT HVAC Drive FC-102?

The Danfoss 131X2421 is a professional VLT® HVAC Drive FC-102 variable frequency drive designed for efficient and accurate control of AC motors in heating, ventilation, air conditioning and refrigeration applications. Built for commercial and industrial HVAC environments, this drive helps optimise motor speed, reduce energy consumption and support dependable system performance.

As part of the proven Danfoss VLT® HVAC Drive FC-102 series, the 131X2421 is engineered specifically for ventilation, heating and refrigeration equipment. It provides dedicated HVAC motor control for fans, pumps, air handling units and building services systems, helping improve efficiency while reducing mechanical stress on connected equipment.

With a rated output power of 5.5 kW / 7.5 HP and a three-phase 380-480 V AC supply, this drive is suitable for medium-duty HVAC motors requiring smooth and responsive speed control. The IP20 / chassis enclosure is ideal for panel and cabinet installation, while the integrated PROFIBUS DP MCA 101 option supports communication with compatible automation and control systems.

Key Advantages

• Dedicated HVAC variable frequency drive for fans, pumps and building services applications.
• 5.5 kW / 7.5 HP power rating for efficient medium-duty motor control.
• Three-phase 380-480 V AC input suitable for commercial and industrial installations.
• IP20 / chassis design for installation inside control panels or cabinets.
• RFI Class A1/B filter with C1 EMC classification for compliant installations.
• Safe Stop functionality for enhanced system safety.
• PROFIBUS DP MCA 101 communication option for automation integration.

Key Features

• Danfoss VLT® HVAC Drive FC-102 series.
• 5.5 kW / 7.5 HP rated output power.
• 13 A continuous current.
• Three-phase 380-480 V AC supply voltage.
• IP20 / chassis enclosure.
• RFI Class A1/B filter with C1 classification.
• Safe Stop functionality.
• No local control panel configuration.
• PROFIBUS DP MCA 101 communication option.
• Frame size A3.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT® HVAC Drive FC-102
• Model / Code: 131X2421
• Type code: FC-102P5K5T4E20H3TXXXXXSXXXXA0BXCXXXXDX
• Product type: HVAC variable frequency drive
• Rated output power: 5.5 kW / 7.5 HP
• Continuous current: 13 A / 11 A
• Intermittent current: 14.3 A / 12.1 A
• Input voltage: 380-480 V AC
• Input phases: Three phase
• Enclosure rating: IP20 / chassis
• RFI filter: Class A1/B, C1
• Safety function: Safe Stop
• Control panel: No local control panel
• PCB coating: Not coated PCB
• Mains option: No mains option
• Adaptation A: Standard cable entries
• Adaptation B: No adaptation
• A option: PROFIBUS DP MCA 101
• B option: No B option
• C1 option: No C1 option
• D option: No D option
• Software: Latest release standard software
• Frame size: A3
• Dimensions (H x W x D): 268 x 130 x 205 mm
• Depth with option A/B: 220 mm
• kVA rating: 9.01 kVA
• Power loss: 187 W
• EAN: 5710107042159
• Net weight: approx. 6.37 kg
• Gross weight: approx. 7.376 kg
• Volume: approx. 27.246 litres

Efficient Motor Control for HVAC Systems

Variable frequency drives such as the Danfoss VLT® HVAC Drive FC-102 regulate motor speed by adjusting the frequency and voltage supplied to the motor. This enables HVAC equipment to respond to real system demand rather than running continuously at full speed, helping reduce energy consumption and improve overall operating efficiency.

The FC-102 series is developed for ventilation, heating and refrigeration applications, making it suitable for building automation, plant rooms and industrial HVAC systems. By delivering smooth acceleration, stable speed control and controlled stopping, the 131X2421 helps reduce stress on motors, fans, pumps and connected mechanical equipment.

Typical Applications

• HVAC fan speed control.
• Air handling units and ventilation systems.
• Heating and cooling circulation pumps.
• Commercial building services equipment.
• Refrigeration and climate control systems.
• Panel-mounted HVAC control systems.
• Automation systems using PROFIBUS DP communication.
• Industrial HVAC motor control applications.

Trusted by HVAC Engineers Worldwide

Danfoss VLT® HVAC Drive FC-102 drives are widely used by building services engineers, facilities teams and automation specialists to deliver efficient, reliable and precise motor control across HVAC installations.