134U4071 Danfoss VLT HVAC Drive 11KW/15HP 380-480VAC IP66

Why Choose the Danfoss 134U4071 VLT® HVAC Drive?

The Danfoss 134U4071 is a high-performance variable frequency drive (VFD) from the trusted Danfoss VLT® HVAC Drive FC 102 series, specifically engineered for heating, ventilation, air conditioning and refrigeration applications. Designed to optimise motor control and reduce energy consumption, this drive provides reliable operation for pumps, fans, compressors and building management systems.

Built with advanced HVAC-specific functionality, the FC 102 series helps improve system efficiency while reducing operating costs. Integrated intelligence allows precise motor speed control, minimising energy waste and extending equipment lifespan. The robust IP66-rated enclosure also enables installation in demanding environments where protection against dust and water ingress is required.

With a rated output power of 11 kW (15 HP) and a three-phase 380–480 V AC supply, the Danfoss 134U4071 is ideally suited to commercial buildings, industrial HVAC systems and critical ventilation applications requiring dependable motor control and energy optimisation.

Key Advantages

• Dedicated HVAC variable speed drive for pumps, fans and compressors.
• 11 kW (15 HP) power rating for demanding building services applications.
• Three-phase 380–480 V AC input for industrial and commercial installations.
• IP66 / NEMA 4X enclosure for harsh operating environments.
• Integrated HVAC functions improve energy efficiency and system performance.
• Built-in EMC filtering helps minimise electrical interference.
• Supports reduced maintenance costs and improved equipment lifespan.

Key Features

• Danfoss VLT® HVAC Drive FC 102 series.
• 11 kW (15 HP) rated output power.
• 21 A continuous output current.
• 380–480 V AC three-phase supply.
• IP66 / NEMA 4X protection rating.
• RFI Class A1/B (C1) EMC filtering.
• Integrated mains disconnect.
• Numerical local control panel.
• Compact and robust B1 frame design.
• Optimised for HVAC pumps, fans and compressors.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT® HVAC Drive FC 102
• Model: 134U4071
• Type code: FC-102P11KT4E66H3XNX1OXSXXXXAXBXCXXXXDX
• Product type: Variable frequency drive
• Rated output power: 11 kW (15 HP)
• Continuous output current: 21 A
• Intermittent current: 23.1 A
• Input voltage: 380–480 V AC
• Input phases: Three-phase
• Protection rating: IP66 / NEMA 4X
• RFI filter: Class A1/B (C1)
• Frame size: B1
• Local control panel: Numerical LCP
• Brake chopper: Not fitted
• Mains option: Integrated mains disconnect
• Dimensions (H × W × D): approx. 494 × 243 × 261 mm
• Net weight: approx. 21.29 kg
• EAN: 5710108000059

Optimised Control for HVAC Applications

The Danfoss FC 102 HVAC drive range is designed specifically for ventilation, heating, cooling and refrigeration systems. By precisely controlling motor speed according to demand, the drive helps reduce energy consumption, improve process control and lower operational costs across commercial and industrial facilities.

Advanced HVAC-specific features enable smooth integration into building management systems while maintaining reliable operation in challenging environments. The drive’s intelligent control algorithms help optimise airflow, pressure and temperature control for maximum system efficiency.

Typical Applications

• Commercial HVAC systems.
• Ventilation and air handling units.
• Cooling towers and chillers.
• Industrial fans and blowers.
• Water circulation and booster pumps.
• Refrigeration systems.
• Building management and energy optimisation systems.

Trusted by HVAC Engineers Worldwide

Danfoss VLT® HVAC drives are widely specified by building services engineers, facilities managers and HVAC contractors for their energy efficiency, reliability and advanced motor control capabilities.