134F4557 Danfoss VLT HVAC Drive 4.0KW/5.5HP 380-480VAC IP55

Why Choose the Danfoss 134F4557 VLT HVAC Drive FC 102?

The Danfoss 134F4557 is a dependable and energy-efficient AC variable frequency drive (VFD) from the Danfoss VLT HVAC Drive FC 102 series, engineered specifically for heating, ventilation, air conditioning and refrigeration systems. Designed for professional HVAC motor control, it provides accurate speed regulation for pumps, fans and compressors while helping reduce energy consumption and improve overall system performance.

This drive combines Danfoss reliability with dedicated HVAC functionality, making it suitable for commercial buildings, plant rooms, industrial facilities and building services installations. The FC 102 platform includes intelligent control features, integrated application functions and a graphical local control panel to support straightforward commissioning, monitoring and operation.

With a rated output power of 4.0 kW / 5.5 HP and a three-phase 380-480 V AC supply, the Danfoss 134F4557 is ideal for medium-sized HVAC motors used in ventilation, pumping and refrigeration applications. Its IP55 / Type 12 enclosure provides enhanced protection, allowing installation in demanding environments where dust and water ingress protection are required.

Key Advantages

• Dedicated HVAC variable frequency drive for pumps, fans and compressors.
• 4.0 kW / 5.5 HP motor power rating for commercial and industrial HVAC systems.
• Three-phase 380-480 V AC input for standard industrial power supplies.
• IP55 / Type 12 enclosure for enhanced environmental protection.
• Integrated mains disconnect for convenient isolation and maintenance.
• RFI Class A1/B (C1) filtering for improved EMC performance.
• Energy-efficient motor speed control helps reduce operating costs.

Key Features

• Danfoss VLT HVAC Drive FC 102 series.
• 4.0 kW / 5.5 HP rated output power.
• Three-phase 380-480 V AC input supply.
• IP55 / Type 12 protected enclosure.
• Integrated mains disconnect.
• RFI Class A1/B (C1) EMC filter.
• Graphical local control panel for easy set-up.
• No brake chopper configuration.
• No A option and no B option fitted.
• Dedicated HVAC functions for pumps, fans and compressors.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT HVAC Drive FC 102
• Part number: 134F4557
• Model code: FC-102P4K0T4P55H3XGX1OXSXXXXAXBXCXXXXDX
• Product type: AC variable frequency drive
• Rated output power: 4.0 kW / 5.5 HP
• Input voltage: 380-480 V AC
• Input phases: 3-phase
• Protection rating: IP55 / Type 12
• Frame size: A5
• RFI filter: Class A1/B (C1)
• Brake chopper: No brake chopper
• Control panel: Graphical local control panel
• PCB coating: Not coated PCB
• Options: No A option, no B option, no C1 option, no D option
• Disconnect: Mains disconnect included

Efficient Motor Control for HVAC Systems

The Danfoss VLT HVAC Drive FC 102 is designed to optimise motor speed according to real system demand. By matching pump, fan or compressor output to the required load, the drive helps reduce wasted energy, minimise mechanical stress and support stable airflow, pressure and temperature control.

Its integrated HVAC application features make it well suited to building services environments where reliability, efficiency and ease of integration are important. The FC 102 platform supports efficient system design while reducing the need for additional external control equipment.

Typical Applications

• Air handling units and ventilation systems.
• Supply and extract fans.
• Heating and chilled water pumps.
• Cooling tower fan control.
• Refrigeration and compressor systems.
• Plant room HVAC equipment.
• Commercial and industrial building management systems.

Trusted by HVAC Engineers Worldwide

Danfoss VLT HVAC Drive FC 102 drives are trusted by HVAC engineers, facilities managers and building services professionals for reliable, energy-efficient motor control in commercial and industrial environments.