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135U8259 Danfoss VLT HVAC Drive 15KW/20HP 380-480VAC IP55
MPN: 135U8259
Alt. SKU: FC-102P15KT4E55H2XGX1OXSXXXXAKBXCXXXXDX
Special Price
£2,129.76
£1,774.80
Regular Price
£3,549.60
Why Choose the Danfoss 135U8259 VLT® HVAC Drive FC-102?
The Danfoss 135U8259 is a powerful and reliable AC variable frequency drive (VFD) from the Danfoss VLT® HVAC Drive FC-102 series, designed for precise motor control in heating, ventilation and air conditioning applications. Built for demanding commercial and industrial HVAC systems, it provides efficient speed regulation for pumps, fans, compressors and air handling equipment.
This drive combines dedicated HVAC functionality with robust construction, intelligent control features and building automation connectivity. The FC-102 platform is engineered to reduce energy consumption, improve system reliability and support straightforward commissioning in modern HVAC installations.
With a rated output power of 15 kW and a three-phase 380-480 V AC supply, the Danfoss 135U8259 is suitable for larger HVAC motor applications. Its IP55 / Type 12 enclosure provides enhanced protection for plant rooms and industrial environments.
Key Advantages
- Dedicated HVAC variable frequency drive for pumps, fans and compressors.
- 15 kW motor power rating for commercial and industrial HVAC systems.
- Three-phase 380-480 V AC input compatible with industrial power supplies.
- IP55 / Type 12 enclosure for enhanced environmental protection.
- Integrated RFI filter for reduced electromagnetic interference.
- MCA 125 BACnet/IP communication for BMS integration.
- Mains disconnect included for improved servicing and maintenance safety.
Key Features
- Danfoss VLT® HVAC Drive FC-102 series.
- 15 kW rated output power.
- 20 HP motor rating.
- Three-phase 380-480 V AC input supply.
- IP55 / Type 12 enclosure.
- B1 frame size.
- Integrated RFI filter.
- No brake chopper.
- Graphical Local Control Panel for straightforward operation.
- Not coated PCB.
- Mains disconnect included.
- MCA 125 BACnet/IP communication option.
- Metric thread cable entry.
Technical Specifications
- Manufacturer: Danfoss
- Series: VLT® HVAC Drive FC-102
- Model: FC-102P15KT4E55H2XGX1OXSXXXXAKBXCXXXXDX
- Part number: 135U8259
- Product type: AC variable frequency drive
- Rated output power: 15 kW
- Horsepower rating: 20 HP
- Rated current: 27 A
- Input voltage: 380-480 V AC
- Input phases: 3-phase
- Frequency: 50 / 60 Hz
- Protection rating: IP55 / Type 12
- Frame size: B1
- RFI filter: Integrated
- Brake chopper: Not included
- Control panel: Graphical Local Control Panel
- Communication: MCA 125 BACnet/IP
- PCB coating: Not coated
- Cable entry: Metric thread
- Mains disconnect: Included
- Software: Latest standard release
Reliable Motor Control for Larger HVAC Systems
Variable frequency drives such as the Danfoss FC-102 regulate motor speed by adjusting output voltage and frequency. This enables HVAC equipment to operate according to real system demand, reducing energy use while improving control stability and reducing mechanical stress on motors, pumps and fans.
The Danfoss VLT® HVAC Drive FC-102 series is engineered for building services and industrial HVAC applications. Its HVAC-focused control functions, graphical user interface and BACnet/IP connectivity make it suitable for building management systems, plant rooms and energy-saving retrofit projects.
Typical Applications
- Large HVAC fans and ventilation systems.
- Air handling units.
- Heating and cooling circulation pumps.
- Chilled water and condenser water systems.
- Cooling tower fans.
- Compressors and refrigeration systems.
- Commercial building management systems.
- Industrial process ventilation.
- Energy-efficient HVAC retrofit projects.
Frequently Asked Questions
What is the Danfoss 135U8259 used for?
This drive is used to control three-phase AC motors in HVAC applications such as fans, pumps, compressors, air handling units and building services systems.
What motor power is supported by this drive?
The Danfoss 135U8259 supports motors with a rated output power of approximately 15 kW.
What supply voltage does the drive require?
The drive operates from a three-phase 380-480 V AC supply.
Does this drive include BACnet/IP communication?
Yes. The Danfoss 135U8259 includes the MCA 125 BACnet/IP communication option for integration with building automation and BMS platforms.
Is the Danfoss 135U8259 suitable for demanding environments?
Yes. The drive has an IP55 / Type 12 enclosure, providing enhanced protection for HVAC plant rooms and industrial building services installations.
Trusted by HVAC Professionals Worldwide
Danfoss VLT® HVAC drives are widely used by facilities engineers, HVAC contractors and building automation specialists to deliver reliable motor control, improved energy efficiency and dependable operation in modern building services.
| Manufacturer Part Number | 135U8259 |
|---|---|
| Barcode | 5710108344993 |
| Height | 480mm |
| Width | 242mm |
| Depth | 260mm |
| Filter | Filter Included |
| Input Phases | Three Phase |
| Degree of protection (IP) | IP55 |
| KW Rating | 15kW |
| Output Phases | Three phase |
| VSD Range | Danfoss VLT FC102 |
| Manufacturer | Danfoss |
| Alternative Product SKU | FC-102P15KT4E55H2XGX1OXSXXXXAKBXCXXXXDX |
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.
