134H9645 Danfoss VLT HVAC Drive 11KW/15HP 380-480VAC IP55

Why Choose the Danfoss 134H9645 VLT HVAC Drive?

The Danfoss 134H9645 is a robust 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, it provides accurate motor speed control, improved energy performance and dependable operation in commercial and industrial building services.

This drive is engineered to optimise HVAC system performance by matching motor output to real demand. The FC 102 platform includes dedicated HVAC functionality, simple commissioning and flexible motor control, making it suitable for fans, pumps and compressors used across modern buildings, plant rooms and mechanical services installations.

With a rated output power of 11 kW / 15 HP and a three-phase 380–480 V AC supply, the Danfoss 134H9645 is ideal for medium HVAC motor applications requiring reliable control. Its IP55 / Type 12 enclosure offers enhanced protection, while the integrated RFI Class A2 (C3) filter supports EMC-conscious installation.

Key Advantages

• Efficient variable frequency drive for HVAC applications.
• 11 kW / 15 HP power rating for fans, pumps and compressors.
• Three-phase 380–480 V AC input suitable for commercial and industrial systems.
• IP55 / Type 12 enclosure for enhanced environmental protection.
• Built-in RFI Class A2 (C3) filter for EMC performance.
• Graphical Local Control Panel for simple setup and operation.
• Mains disconnect option for convenient isolation and maintenance.

Key Features

• Danfoss VLT HVAC Drive FC 102 series.
• 11 kW / 15 HP rated output power.
• Three-phase 380–480 V AC input supply.
• IP55 / Type 12 enclosure.
• B1 frame size.
• RFI Class A2 (C3) integrated EMC filter.
• No brake chopper configuration.
• Graphical Local Control Panel.
• Metric thread cable entry.
• Not coated PCB.
• Mains disconnect included.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT HVAC Drive FC 102
• Model: 134H9645
• Model code: FC-102P11KT4E55H2XGX1OXSXXXXAXBXCXXXXDX
• Product type: AC variable frequency drive
• Rated output power: 11 kW / 15 HP
• Input voltage: 380–480 V AC
• Input phases: 3-phase
• Protection rating: IP55 / Type 12
• Frame size: B1
• RFI filter: Class A2 (C3)
• Brake chopper: No brake chopper
• Control panel: Graphical Local Control Panel
• PCB coating: Not coated PCB
• Mains option: Mains disconnect
• Cable entry: Metric thread cable entry
• Mounting type: Wall / panel mounting
• Dimensions (H × W × D): approx. 494 × 243 × 261 mm
• Net weight: approx. 20.01 kg
• EAN: 5710107747740

Efficient Motor Control for HVAC Systems

The Danfoss VLT HVAC Drive FC 102 regulates motor speed by adjusting output voltage and frequency, allowing HVAC equipment to operate according to real system demand. This helps reduce energy consumption, improve comfort control and minimise mechanical stress on motors and driven equipment.

With HVAC-focused control features, a protected IP55 enclosure and integrated mains disconnect, the 134H9645 is well suited to building services and industrial applications where reliable operation, efficient commissioning and long-term performance are important.

Typical Applications

• HVAC fans and ventilation systems.
• Air handling units.
• Heating and cooling pumps.
• Compressors and refrigeration equipment.
• Building management systems.
• Plant rooms and mechanical services installations.
• Energy-efficient retrofit and replacement projects.

Trusted by HVAC Engineers Worldwide

Danfoss VLT HVAC drives are widely used by building services engineers, facilities teams and system integrators to deliver dependable motor control, energy savings and efficient HVAC operation.