134N8520 Danfoss VLT HVAC Drive 1.1KW/1.5HP 380-480VAC IP55

Why Choose the Danfoss 134N8520 VLT HVAC Drive?

The Danfoss 134N8520 is a compact and dependable VLT® HVAC Drive FC-102 variable frequency drive (VFD) designed for accurate speed control of AC motors in heating, ventilation and air conditioning systems. Engineered for HVAC environments, this drive helps improve energy efficiency, reduce mechanical stress and optimise system performance in fan, pump and refrigeration applications.

As part of the proven Danfoss VLT® HVAC Drive FC-102 series, the 134N8520 provides dedicated HVAC functionality, straightforward commissioning and reliable motor control. Its robust construction and application-focused features make it suitable for commercial buildings, industrial plant rooms and building services installations.

With a rated output power of 1.1 kW / 1.5 HP and a three-phase 380–480 V AC supply, the Danfoss 134N8520 is ideal for smaller HVAC motors used in ventilation, pumping and air handling systems. The IP55 / Type 12 enclosure provides enhanced protection for installations where a higher environmental rating is required.

Key Advantages

• Dedicated variable frequency drive for HVAC applications.
• 1.1 kW / 1.5 HP motor power rating for smaller HVAC systems.
• Three-phase 380–480 V AC input for commercial and industrial supplies.
• IP55 / Type 12 enclosure for improved environmental protection.
• No brake chopper configuration for standard HVAC motor control.
• Graphical local control panel for simple setup and operation.
• Optimises motor speed to reduce energy consumption and operating costs.

Key Features

• Danfoss VLT® HVAC Drive FC-102 series.
• 1.1 kW / 1.5 HP rated output power.
• Three-phase 380–480 V AC input supply.
• IP55 / Type 12 enclosure.
• A4 frame size.
• No brake chopper fitted.
• Graphical local control panel included.
• Designed for ventilation, heating and refrigeration applications.
• Suitable for accurate motor control and repeatable commissioning.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT® HVAC Drive FC-102
• Model: 134N8520
• Model code: FC-102P1K1T4Z55H3XGXXXXSXXXXAXBPCXXXXDX
• Product type: AC variable frequency drive
• Rated output power: 1.1 kW / 1.5 HP
• Input voltage: 380–480 V AC
• Input phases: Three phase
• Frequency: 50 / 60 Hz
• Protection rating: IP55 / Type 12
• Frame size: A4
• Brake chopper: No brake chopper
• Control panel: Graphical local control panel
• Mounting type: Panel / cabinet mounting
• Application: HVAC, ventilation, heating and refrigeration motor control

Efficient Motor Control for HVAC Systems

Variable frequency drives such as the Danfoss VLT® HVAC Drive FC-102 regulate motor speed by adjusting output frequency and voltage. This allows HVAC equipment to operate according to actual system demand, improving energy performance while reducing wear on motors, fans, pumps and mechanical components.

The FC-102 range is developed for HVAC engineers, building services contractors and facilities teams requiring stable, efficient and dependable motor control. Its HVAC-focused functionality supports comfortable building operation, lower running costs and reliable performance across demanding commercial and industrial environments.

Typical Applications

• HVAC fan speed control.
• Air handling units and ventilation systems.
• Heating and cooling circulation pumps.
• Refrigeration and condenser applications.
• Commercial building services.
• Industrial HVAC systems.
• Booster pump and pressure control systems.
• Building management and automation systems.

Trusted by HVAC Engineers Worldwide

Danfoss VLT® HVAC Drives are widely used by building services engineers, system integrators and facilities teams to deliver efficient, reliable and precise motor control for HVAC equipment in commercial and industrial installations.