135U5247 Danfoss VLT HVAC Drive 400KW/550HP 380-480VAC IP54

Why Choose the Danfoss 135U5247 VLT HVAC Drive?

The Danfoss 135U5247 is a high-power and efficient AC variable frequency drive (VFD) from the advanced Danfoss VLT HVAC Drive FC 102 series. Designed specifically for heating, ventilation and air conditioning applications, this drive provides precise motor speed control for large pumps, fans, compressors and refrigeration equipment while helping reduce energy consumption and operating costs.

As part of the Danfoss FC 102 HVAC range, the 135U5247 includes dedicated building-services functionality for efficient control of large HVAC equipment. Its graphical local control panel, RFI filtering and robust high-power frame make it suitable for demanding plant rooms, industrial facilities and building management system installations.

With a rated output power of 400 kW (550 HP) and a three-phase 380-480 V AC supply, the Danfoss 135U5247 is ideal for very large HVAC motor applications. The IP54 / Type 12 enclosure with main shield provides dependable protection for demanding commercial and industrial environments.

Key Advantages

• High-power HVAC variable frequency drive for large pumps, fans and compressors.
• 400 kW (550 HP) motor power rating for demanding HVAC motor control.
• Three-phase 380-480 V AC input compatible with industrial power systems.
• IP54 / Type 12 enclosure with main shield for robust installation protection.
• Graphical local control panel for commissioning, monitoring and diagnostics.
• Built-in RFI filter helps support EMC compliance.
• Dedicated HVAC functions support ventilation, heating and refrigeration applications.
• Designed for high-power plant room and industrial HVAC installations.

Key Features

• Danfoss VLT HVAC Drive FC 102 series.
• 400 kW rated output power.
• 550 HP motor rating.
• Three-phase 380-480 V AC input supply.
• IP54 / Type 12 enclosure with main shield.
• Graphical local control panel included.
• RFI filter included.
• No brake chopper included.
• No A option, no B option, no C1 option and no D option.
• E1H frame size for high-power HVAC applications.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT HVAC Drive FC 102
• Model: 135U5247
• Part Number: FC-102N400T4E5MH2XGC7XXSXXXXAXBXCXXXXDX
• Product type: AC variable frequency drive
• Rated output power: 400 kW
• Motor horsepower: 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 with main shield
• RFI filter: Included
• Brake chopper: Not included
• Control panel: Graphical Local Control Panel
• Frame size: E1H
• Dimensions (H × W × D): approx. 2000 × 600 × 510 mm
• Weight: approx. 295 kg

Efficient Motor Control for Large HVAC Systems

Variable frequency drives such as the Danfoss VLT HVAC Drive FC 102 regulate motor speed by adjusting output voltage and frequency. In large HVAC systems, this allows pumps, fans and compressors to run only as fast as required, improving energy efficiency while reducing mechanical stress on motors and connected equipment.

The FC 102 range is designed for building-services engineers, facility managers and HVAC specialists who require dependable motor control with easy integration into modern plant rooms and building management systems. Its HVAC-focused functionality supports efficient operation across ventilation, heating and refrigeration systems.

Typical Applications

• Large HVAC fan control systems.
• Industrial air handling units.
• Commercial and industrial pump systems.
• Ventilation and extraction equipment.
• Compressors and refrigeration plant.
• Cooling towers and chiller systems.
• Large heating and cooling plant rooms.
• Industrial building management systems.

Trusted by HVAC Professionals Worldwide

Danfoss VLT HVAC drives are widely used by building-services engineers, facility managers and HVAC specialists to deliver efficient, reliable and precise motor control across modern heating, ventilation and air conditioning systems.