134H9643 Danfoss VLT HVAC Drive 5.5KW/7.5HP 380-480VAC IP55

Why Choose the Danfoss 134H9643 VLT HVAC Drive FC-102?

The Danfoss 134H9643 is a robust and efficient AC variable frequency drive (VFD) from the Danfoss VLT® HVAC Drive FC-102 series, designed for precise motor control in heating, ventilation, air conditioning and refrigeration applications. It is ideal for building services engineers, OEMs and facilities teams requiring reliable speed control for fans, pumps and compressors.

This drive provides advanced HVAC motor regulation while helping reduce energy consumption, improve comfort control and lower operating costs. The FC-102 platform is engineered for dependable performance, straightforward commissioning and seamless integration into modern building automation and industrial HVAC systems.

With a rated output power of 5.5 kW (7.5 HP) and a three-phase 380–480 V AC supply, the 134H9643 is suitable for medium HVAC motor applications. Its IP55 / Type 12 enclosure, integrated RFI filtering, graphical local control panel and mains disconnect make it a practical choice for protected HVAC installations.

Key Advantages

• Reliable variable frequency drive for HVAC applications.
• 5.5 kW / 7.5 HP motor power rating for fans, pumps and compressors.
• Three-phase 380–480 V AC input for standard industrial supplies.
• IP55 / Type 12 enclosure for improved installation protection.
• RFI Class A2 (C3) filtering for EMC performance.
• Graphical local control panel for easy monitoring and parameter access.
• Mains disconnect included for practical service isolation.

Key Features

• Danfoss VLT® HVAC Drive FC-102 series.
• 5.5 kW / 7.5 HP rated output power.
• 11 A continuous output current.
• Three-phase 380–480 V AC input supply.
• IP55 / Type 12 enclosure.
• RFI Class A2 (C3) integrated filter.
• Graphical local control panel.
• No brake chopper configuration.
• Not coated PCB construction.
• Mains disconnect fitted.
• Frame size A5.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT® HVAC Drive FC-102
• Model: 134H9643
• Model code: FC-102P5K5T4E55H2XGX1OXSXXXXAXBXCXXXXDX
• Product type: AC variable frequency drive / frequency converter
• Rated output power: 5.5 kW
• Horsepower rating: 7.5 HP
• Continuous output current: 11 A
• Intermittent output current: 12.1 A
• Input voltage: 380–480 V AC
• Input phases: Three phase
• Protection rating: IP55 / Type 12
• Mounting type: Enclosed / wall or panel mounting
• RFI filter: Class A2 (C3)
• PCB coating: Not coated PCB
• Brake chopper: Not included
• Local control panel: Graphical LCP
• Mains option: Mains disconnect
• Frame size: A5
• Dimensions (H × W × D): approx. 420 × 242 × 200 mm
• EAN: 5710107747726
• Net weight: approx. 11.91 kg
• Gross weight: approx. 12.526 kg

Reliable 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 systems to match motor performance to real demand, reducing wasted energy while improving control of airflow, pressure and temperature.

The Danfoss 134H9643 is well suited to HVAC installations where robust enclosure protection, local graphical control and dependable motor regulation are important for long-term system performance.

Typical Applications

• HVAC fan speed control.
• Air handling units.
• Pump systems.
• Ventilation and extraction equipment.
• Compressor and refrigeration applications.
• Building management systems.
• Commercial and industrial HVAC installations.

Trusted by HVAC Engineers Worldwide

Danfoss VLT® HVAC drives are widely used by building services engineers, OEMs and maintenance teams to deliver reliable motor control, efficient operation and dependable HVAC system performance.