135N2274 Danfoss VLT HVAC Drive 3.0KW/4.0HP 380-480VAC IP55

Why Choose the Danfoss 135N2274 VLT HVAC Drive?

The Danfoss 135N2274 is a compact and efficient AC variable frequency drive (VFD) from the Danfoss VLT® HVAC Drive FC 102 series, designed for precise motor speed control in heating, ventilation, air conditioning and refrigeration applications. Built for HVAC environments, it helps optimise energy use, improve system reliability and reduce mechanical stress on motors and driven equipment.

This drive provides Danfoss HVAC-specific functionality in a robust and user-friendly package. The FC 102 platform supports efficient control of pumps, fans and compressors, while the graphical control panel and integrated communication option simplify commissioning, monitoring and automation system integration.

With a rated output power of 3.0 kW / 4.0 HP and a three-phase 380–480 V AC supply, the Danfoss 135N2274 is well suited for smaller HVAC motor applications. Its IP55 / Type 12 A4 frame enclosure provides enhanced protection for commercial and industrial installations where reliable operation is essential.

Key Advantages

• Dedicated variable frequency drive for HVAC applications.
• 3.0 kW / 4.0 HP output rating for fans, pumps and ventilation systems.
• Three-phase 380–480 V AC input for industrial power supplies.
• IP55 / Type 12 enclosure for improved environmental protection.
• Integrated RFI filtering for EMC performance.
• Graphical Local Control Panel for simple setup and operation.
• PROFINET MCA 120 option for automation network integration.

Key Features

• Danfoss VLT® HVAC Drive FC 102 series.
• 3.0 kW / 4.0 HP rated motor power.
• Three-phase 380–480 V AC supply.
• IP55 / Type 12 protection rating.
• Frame size A4.
• RFI Class A1/B filter.
• Graphical Local Control Panel.
• PROFINET MCA 120 communication option.
• No brake chopper.
• Not coated PCB.
• No mains option.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT® HVAC Drive FC 102
• Model: 135N2274
• Alternative model code: FC-102P3K0T4Z55H3XGXXXXSXXXXALBXCXXXXDX
• Product type: AC variable frequency drive
• Rated output power: 3.0 kW
• Motor rating: 4.0 HP
• Rated current: 6.3 A
• Input voltage: 380–480 V AC
• Input phases: Three phase
• Output phases: Three phase
• Frequency: 50 / 60 Hz
• Protection rating: IP55 / Type 12
• Frame size: A4
• RFI filter: Class A1/B (C1)
• Brake chopper: No
• Control panel: Graphical Local Control Panel
• Communication option: PROFINET MCA 120
• PCB coating: Not coated PCB
• Dimensions (H × W × D): approx. 391 × 200 × 177 mm
• Weight: approx. 8.04 kg

Energy-Efficient HVAC Motor Control

Variable frequency drives such as the Danfoss 135N2274 regulate motor speed by adjusting output voltage and frequency. This enables HVAC equipment to match real-time demand instead of running continuously at full speed, helping reduce energy consumption and improve operational efficiency.

The FC 102 series is developed specifically for HVAC control, supporting stable airflow, pressure and temperature regulation across modern building services and industrial systems. Its PROFINET capability allows integration with compatible automation networks and building management platforms.

Typical Applications

• Air handling units and ventilation systems.
• Supply and extract fans.
• Heating and cooling pumps.
• Chilled water circulation systems.
• Small compressors and refrigeration equipment.
• Building management systems.
• Commercial and industrial HVAC plant rooms.

Trusted by HVAC Professionals Worldwide

Danfoss VLT® HVAC Drives are widely used by building services engineers, facilities teams and automation specialists for reliable motor control, energy-efficient operation and long-term HVAC performance.