135U8250 Danfoss VLT HVAC Drive 5.5KW/7.5HP 380-480VAC IP55

Why Choose the Danfoss 135U8250 VLT® HVAC Drive FC-102?

The Danfoss 135U8250 is a powerful and reliable AC variable frequency drive (VFD) from the Danfoss VLT® HVAC Drive FC-102 series, designed for precise motor speed control in heating, ventilation and air conditioning applications. Built for commercial and industrial HVAC systems, it helps improve energy efficiency, reduce mechanical stress and deliver dependable control of pumps, fans and air handling equipment.

This drive combines dedicated HVAC functionality with robust construction and flexible communication options. The FC-102 platform is widely used in building automation environments where dependable motor control, efficient operation and simplified commissioning are essential.

With a rated output power of 5.5 kW and a three-phase 380-480 V AC supply, the Danfoss 135U8250 is suitable for medium-duty HVAC applications. Its IP55 / Type 12 enclosure provides enhanced protection, making it suitable for installation in demanding plant room and building services environments.

Key Advantages

• Dedicated variable frequency drive for HVAC motor control.
• 5.5 kW motor power rating suitable for pumps, fans and ventilation systems.
• Three-phase 380-480 V AC input for industrial and commercial power networks.
• IP55 / Type 12 enclosure for enhanced environmental protection.
• Integrated RFI filter for reduced electrical interference.
• MCA 125 BACnet/IP communication for building automation integration.
• Mains disconnect included for safer servicing and maintenance.

Key Features

• Danfoss VLT® HVAC Drive FC-102 series.
• 5.5 kW rated output power.
• 7.5 HP motor rating.
• Three-phase 380-480 V AC input supply.
• IP55 / Type 12 enclosure.
• A5 frame size.
• Integrated RFI filter.
• No brake chopper.
• Graphical Local Control Panel for easy setup and monitoring.
• Not coated PCB.
• Mains disconnect included.
• MCA 125 BACnet/IP communication option.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT® HVAC Drive FC-102
• Model: FC-102P5K5T4E55H2XGX1OXSXXXXAKBXCXXXXDX
• Part number: 135U8250
• Product type: AC variable frequency drive
• Rated output power: 5.5 kW
• Horsepower rating: 7.5 HP
• Input voltage: 380-480 V AC
• Input phases: 3-phase
• Frequency: 50 / 60 Hz
• Protection rating: IP55 / Type 12
• Frame size: A5
• RFI filter: Integrated
• Brake chopper: Not included
• Control panel: Graphical Local Control Panel
• Communication: MCA 125 BACnet/IP
• PCB coating: Not coated
• Mains disconnect: Included
• Software: Latest standard release

Efficient Motor Control for HVAC Systems

Variable frequency drives such as the Danfoss FC-102 regulate motor speed by adjusting output voltage and frequency. This allows HVAC equipment to match actual demand more closely, helping reduce energy use while improving process stability and extending the service life of motors and mechanical components.

The Danfoss VLT® HVAC Drive FC-102 series is engineered for building services applications. Its integrated HVAC functions, graphical user interface and BACnet/IP connectivity make it well suited for modern building management systems, energy-saving retrofits and reliable plant room operation.

Typical Applications

• HVAC fans and ventilation systems.
• Air handling units.
• Heating and cooling circulation pumps.
• Chilled water systems.
• Cooling tower fans.
• Commercial building management systems.
• Industrial process ventilation.
• Energy-efficient HVAC retrofit projects.

Trusted by HVAC Professionals Worldwide

Danfoss VLT® HVAC drives are widely used by facilities engineers, HVAC contractors and building automation specialists to deliver reliable motor control, improved energy efficiency and dependable operation in modern building services.