Danfoss 135U8249 VLT HVAC Drive FC-102, a 4.0 kW three-phase AC variable frequency drive designed for HVAC motor control, building automation and energy-efficient pump and fan operation.
£1,308.80
The Danfoss 135U8249 is a robust and efficient AC variable frequency drive (VFD) from the Danfoss VLT® HVAC Drive FC-102 series, designed specifically for heating, ventilation and air conditioning applications. Built for reliable motor speed control, it helps optimise pumps, fans, compressors and air handling systems in commercial and industrial building environments.
This drive provides intelligent HVAC motor control while helping reduce energy consumption, mechanical stress and operating costs. The FC-102 range is widely used in building automation systems thanks to its HVAC-focused functions, communication options and straightforward commissioning features.
With a rated output power of 4.0 kW and a three-phase 380-480 V AC supply, the Danfoss 135U8249 is suitable for demanding HVAC motor control applications. Its IP55 / Type 12 enclosure supports installation in harsher environments without requiring a separate control cabinet.
Variable frequency drives such as the Danfoss FC-102 regulate motor speed by adjusting output voltage and frequency. This enables HVAC equipment to respond more accurately to demand, improving energy efficiency while reducing unnecessary wear on motors, belts, fans and pumps.
The Danfoss VLT® HVAC Drive FC-102 series is designed for building services and industrial HVAC environments. Its integrated control functions, graphical interface and BACnet/IP connectivity make it well suited for modern building management systems and energy-saving retrofit projects.
| Power | 4 kW |
|---|---|
| Voltage | 480 V |
| Phase | Three Phase |
| IP Rating | IP55 |
| Series | VLT® HVAC Drive FC-102 |
| Part number | 135U8249 |
| Product type | AC variable frequency drive |
| Rated output power | 4.0 kW |
| Horsepower rating | 5.0 HP |
| Input voltage | 380-480 V AC |
| Input phases | 3-phase |
| Frequency | 50 / 60 Hz |
| Protection rating | IP55 / Type 12 |
| Frame size | A4 |
| RFI filter | Integrated |
| Brake chopper | Not included |
| Control panel | Graphical Local Control Panel |
| PCB coating | Not coated |
| Cable entry | Metric thread |
| Mains disconnect | Included |
| Dimensions (H × W × D) | approx. 391 × 200 × 177 mm |
| Weight | approx. 7.91 kg |
| EAN | 5710108345198 |
This drive is used to control the speed and performance of three-phase AC motors in HVAC applications such as fans, pumps, compressors and air handling systems.
The Danfoss 135U8249 supports motors with a rated output power of approximately 4.0 kW.
The drive operates from a three-phase 380-480 V AC supply.
Yes. The Danfoss 135U8249 includes the MCA 125 BACnet/IP communication option for integration with building automation systems.
The drive has an IP55 / Type 12 enclosure, making it suitable for installation in more demanding environments where additional cabinet protection may not always be required.
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.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...
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...