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135N4478 Danfoss VLT HVAC Drive 11KW/15HP 380-480VAC IP55
MPN: 135N4478
Alt. SKU: FC-102P11KT4P55H3XGXXXXSXXXXALBXCXXXXDX
Special Price
£1,780.56
£1,483.80
Regular Price
£2,967.60
Why Choose the Danfoss 135N4478 VLT HVAC Drive?
The Danfoss 135N4478 is a reliable and energy-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 consumption, improve system stability and reduce mechanical stress on motors and driven equipment.
This drive combines Danfoss HVAC-specific functionality with advanced automation connectivity, making it suitable for commercial buildings, plant rooms and industrial climate control systems. The FC 102 platform provides intelligent control for pumps, fans and compressors, with user-friendly commissioning through its graphical local control panel.
With a rated output power of 11 kW / 15 HP and a three-phase 380–480 V AC supply, the Danfoss 135N4478 is ideal for medium-duty HVAC motor applications. Its IP55 / Type 12 backplate enclosure and PROFINET MCA 120 communication option make it a practical choice for protected installation in connected HVAC and automation systems.
Key Advantages
- Dedicated variable frequency drive for HVAC applications.
- 11 kW / 15 HP output rating for fans, pumps and ventilation equipment.
- Three-phase 380–480 V AC input for industrial power supplies.
- IP55 / Type 12 backplate enclosure for enhanced installation protection.
- PROFINET MCA 120 communication option for industrial automation networks.
- Integrated RFI Class A1/B filter for EMC performance.
- Graphical Local Control Panel for simple setup and operation.
Key Features
- Danfoss VLT® HVAC Drive FC 102 series.
- 11 kW / 15 HP rated motor power.
- Three-phase 380–480 V AC supply.
- IP55 / Type 12 protection rating.
- Frame size B1.
- 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: 135N4478
- Alternative model code: FC-102P11KT4P55H3XGXXXXSXXXXALBXCXXXXDX
- Product type: AC variable frequency drive
- Rated output power: 11 kW
- Motor rating: 15 HP
- 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: B1
- 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
- Mains option: No mains option
- Dimensions (H × W × D): approx. 480 × 242 × 260 mm
Energy-Efficient HVAC Motor Control
Variable frequency drives such as the Danfoss 135N4478 regulate motor speed by adjusting output voltage and frequency. This allows HVAC equipment to match motor output to real-time demand, helping reduce energy usage, improve comfort control and lower wear on mechanical components.
The FC 102 series is developed specifically for HVAC control, supporting efficient airflow, pressure and temperature regulation across modern building services and industrial systems. Its PROFINET communication 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.
- Compressors and refrigeration equipment.
- Building management and HVAC control systems.
- Commercial and industrial plant rooms.
Frequently Asked Questions
What is the Danfoss 135N4478 used for?
The Danfoss 135N4478 is used to control the speed and torque of AC motors in HVAC systems, including fans, pumps, compressors and ventilation equipment.
What motor power is supported by this drive?
This drive is rated for 11 kW / 15 HP motor applications.
What supply voltage does the drive require?
The drive operates from a three-phase 380–480 V AC supply.
What enclosure rating does the Danfoss 135N4478 have?
The Danfoss 135N4478 has an IP55 / Type 12 backplate enclosure, providing enhanced protection for suitable commercial and industrial HVAC environments.
Does this drive include PROFINET communication?
Yes, this configuration includes the PROFINET MCA 120 communication option for integration with compatible automation and control networks.
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.
| Manufacturer Part Number | 135N4478 |
|---|---|
| Barcode | 5710108206765 |
| Height | 480mm |
| Width | 242mm |
| Depth | 260mm |
| Filter | Filter Included |
| Input Phases | Three Phase |
| Degree of protection (IP) | IP55 |
| KW Rating | 11kW |
| Output Phases | Three phase |
| VSD Range | Danfoss VLT FC102 |
| Manufacturer | Danfoss |
| Alternative Product SKU | FC-102P11KT4P55H3XGXXXXSXXXXALBXCXXXXDX |
Write Your Own Review
The VLT HVAC drive has built-in intelligence to give optimal process control to heating, ventilation and air conditioning (HVAC). It is simple to use and extremely cost-efficient, featuring a number of functions that are ideal for use with pumps, fans and compressors to save energy, meet environmental regulations and reduce costs in modern buildings.
The VLT HVAC drive has a compact, robust design and is ideally suited to locations where space is restricted. A selection of safety features, such as Safe Torque Off and Safe Maximum Speed, protect both applications and their operators.
Enclosures can be purchased separately, up to IP66, and an additional option available upon purchase is a unique coating to provide added protection for the circuit boards. Integrated DC chokes and RFI filters safeguard installations by minimizing harmonic distortion and electromagnetic.
Supply voltages and power range
3 x 200-240 V...1.1-45 kW
3 x 380-480 V...1.1 kW – 1 MW
3 x 525-600 V...1.1-90 kW
3 x 525-690 V...45 kW – 1.4 MW
Low harmonic drive
3 x 380-480 V...132-710 kW
12-pulse drive
3 x 380-480 V...250-200kW
Features and benefits
- There’s no need for external cooling or oversizing as the maximum ambient temperature is 50°C without derating
- PLC capacity is often unnecessary thanks to the Smart Logic Controller
- A low initial investment and easy upgrades are possible thanks to the modular concept with a wide range of options
- The need for external control and conversion equipment is avoided due to integrated pump, fan and compressor functionality
- 5–15% energy is saved as a result of the Automatic Energy Optimization function
- Less gateway solutions are needed thanks to a wide range of HVAC protocols for building management system controller connectivity
Applications
Pumps, fans, compressors.
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For further information on this product please get in touch with our team or visit the Danfoss website.
