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135U6656 Danfoss VLT HVAC Drive 11KW/15HP 380-480VAC IP55
MPN: 135U6656
Alt. SKU: FC-102P11KT4P55H3XGX1XXSXXXXAKBXCXXXXDX
Special Price
£1,960.56
£1,633.80
Regular Price
£3,267.60
Why Choose the Danfoss 135U6656 VLT HVAC Drive?
The Danfoss 135U6656 is a reliable and efficient AC variable frequency drive (VFD) from the advanced Danfoss VLT HVAC Drive FC 102 series. Designed specifically for heating, ventilation and air conditioning applications, this drive provides precise motor speed control for pumps, fans and ventilation equipment while helping reduce energy consumption and operating costs.
As part of the Danfoss FC 102 HVAC range, the 135U6656 includes dedicated building-services functionality for efficient control of HVAC equipment. Its graphical local control panel, integrated mains disconnect and BACnet/IP communication option make it suitable for modern plant rooms, automation systems and building management installations.
With a rated output power of 11 kW (15 HP) and a three-phase 380-480 V AC supply, the Danfoss 135U6656 is ideal for medium HVAC motor applications. The IP55 / Type 12 backplate enclosure provides dependable protection for installation in mechanical areas, commercial plant rooms and industrial environments.
Key Advantages
- Dedicated HVAC variable frequency drive for pumps, fans and ventilation systems.
- 11 kW (15 HP) motor power rating for efficient HVAC motor control.
- Three-phase 380-480 V AC input compatible with commercial and industrial power systems.
- IP55 / Type 12 backplate protection rating for demanding installation environments.
- Integrated mains disconnect supports safer isolation and simplified maintenance.
- Graphical local control panel for simple commissioning, monitoring and diagnostics.
- MCA 125 BACnet/IP communication option for building automation integration.
- Built-in RFI filtering helps support EMC compliance.
Key Features
- Danfoss VLT HVAC Drive FC 102 series.
- 11 kW rated output power.
- 15 HP motor rating.
- Three-phase 380-480 V AC input supply.
- IP55 / Type 12 backplate enclosure protection.
- Graphical local control panel included.
- RFI Class A1/B (C1) filter.
- No brake chopper included.
- Integrated mains disconnect.
- MCA 125 BACnet/IP communication option.
- Not coated PCB.
- No B option, no C1 option and no D option.
- B1 frame size for practical installation.
Technical Specifications
- Manufacturer: Danfoss
- Series: VLT HVAC Drive FC 102
- Model: 135U6656
- Part Number: FC-102P11KT4P55H3XGX1XXSXXXXAKBXCXXXXDX
- Product type: AC variable frequency drive
- Rated output power: 11 kW
- Motor horsepower: 15 HP
- Input voltage: 380-480 V AC
- Input phases: 3-phase
- Output phases: 3-phase
- Frequency: 50 / 60 Hz
- Protection rating: IP55 / Type 12 Backplate
- RFI filter: Class A1/B (C1)
- Brake chopper: Not included
- Control panel: Graphical Local Control Panel
- Communication option: MCA 125 BACnet/IP
- PCB coating: Not coated
- Mains option: Integrated mains disconnect
- Frame size: B1
- Dimensions (H × W × D): approx. 494 × 243 × 261 mm
- Weight: approx. 22 kg
Efficient Motor Control for HVAC Systems
Variable frequency drives such as the Danfoss VLT HVAC Drive FC 102 regulate motor speed by adjusting output voltage and frequency. In HVAC systems, this allows pumps and fans to run only as fast as required, improving energy efficiency while reducing mechanical stress on motors and connected equipment.
The FC 102 range is designed for building-services engineers, facility managers and HVAC specialists who require dependable motor control with easy integration into modern plant rooms and building management systems. Built-in HVAC functionality helps simplify system design while supporting efficient operation.
Typical Applications
- HVAC fan control systems.
- Air handling units (AHUs).
- Commercial pump systems.
- Ventilation and extraction equipment.
- Heating and cooling plant rooms.
- Building management systems.
- Energy-saving retrofit projects.
- BACnet/IP-enabled building automation systems.
Frequently Asked Questions
What is the Danfoss 135U6656 used for?
The Danfoss 135U6656 is used to control the speed of three-phase AC motors in HVAC applications such as fans, pumps, ventilation systems and air handling units.
What motor power does this drive support?
The drive is rated for approximately 11 kW (15 HP) motor applications.
What supply voltage does the drive require?
The 135U6656 operates from a three-phase 380-480 V AC supply.
What enclosure protection does this model have?
This model has an IP55 / Type 12 backplate enclosure, making it suitable for many commercial and industrial HVAC installation environments.
Does the Danfoss 135U6656 include a communication option?
Yes. This model code includes MCA 125 BACnet/IP, supporting integration with compatible building automation and control systems.
Trusted by HVAC Professionals Worldwide
Danfoss VLT HVAC drives are widely used by building-services engineers, facility managers and HVAC specialists to deliver efficient, reliable and precise motor control across modern heating, ventilation and air conditioning systems.
| Manufacturer Part Number | 135U6656 |
|---|---|
| Barcode | 5710108329303 |
| 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-102P11KT4P55H3XGX1XXSXXXXAKBXCXXXXDX |
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.
