Danfoss 135U6829 VLT HVAC Drive FC 102, a 5.5 kW three-phase AC variable frequency drive designed for HVAC motor control applications including pumps, fans and ventilation systems.
£1,449.60
The Danfoss 135U6829 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 135U6829 includes dedicated building-services functionality for efficient control of HVAC equipment. Its graphical local control panel, integrated mains disconnect and MCB-108 functional safety PLC option make it suitable for modern plant rooms, automation systems and building management installations.
With a rated output power of 5.5 kW (7.5 HP) and a three-phase 380-480 V AC supply, the Danfoss 135U6829 is ideal for smaller to medium HVAC motor applications. The IP55 / Type 12 enclosure provides dependable protection for installation in mechanical areas, commercial plant rooms and industrial environments.
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.
| Power | 5.5 kW |
|---|---|
| Voltage | 480 V |
| Phase | Three Phase |
| IP Rating | IP55 |
| Series | VLT HVAC Drive FC 102 |
| Part Number | FC-102P5K5T4E55H3XGX1OXSXXXXAJBXCXXXXDX |
| Product type | AC variable frequency drive |
| Rated output power | 5.5 kW |
| Motor horsepower | 7.5 HP |
| Input voltage | 380-480 V AC |
| Input phases | 3-phase |
| Output phases | 3-phase |
| Frequency | 50 / 60 Hz |
| Protection rating | IP55 / Type 12 |
| RFI filter | Class A1/B (C1) |
| Brake chopper | Not included |
| Control panel | Graphical Local Control Panel |
| Safety option | MCB-108 functional safety PLC |
| PCB coating | Not coated |
| Mains option | Integrated mains disconnect |
| Frame size | A5 |
| Dimensions (H × W × D) | approx. 420 × 242 × 200 mm |
| EMC Filter | Commercial |
The Danfoss 135U6829 is used to control the speed of three-phase AC motors in HVAC applications such as fans, pumps, ventilation systems and air handling units.
The drive is rated for approximately 5.5 kW (7.5 HP) motor applications.
The 135U6829 operates from a three-phase 380-480 V AC supply.
This model has an IP55 / Type 12 enclosure, making it suitable for many commercial and industrial HVAC installation environments.
Yes. This model code includes an integrated mains disconnect, supporting safer isolation and simplified maintenance procedures.
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.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...