Danfoss 135N5849 VLT HVAC Drive FC 102, a 4.0 kW three phase AC variable frequency drive with IP55 Type 12 enclosure, RFI Class A1/B filter, MCB-105 relay card and mains disconnect for HVAC applications.
£1,312.80
The Danfoss 135N5849 is a compact and 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 reduce energy consumption, improve system stability and minimise mechanical stress on motors and driven equipment.
This drive combines Danfoss HVAC-specific functionality with practical installation and control features, 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 straightforward commissioning through its graphical local control panel.
With a rated output power of 4.0 kW / 5.0 HP and a three-phase 380–480 V AC supply, the Danfoss 135N5849 is ideal for small to medium HVAC motor applications. Its IP55 / Type 12 enclosure, RFI Class A1/B filter, MCB-105 relay card and mains disconnect provide a robust and flexible solution for commercial and industrial HVAC installations.
Variable frequency drives such as the Danfoss 135N5849 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 MCB-105 relay card and mains disconnect provide additional flexibility for control, signalling and safe isolation in HVAC installations.
| Power | 4 kW |
|---|---|
| Voltage | 480 V |
| Phase | Three Phase |
| IP Rating | IP55 |
| Series | VLT® HVAC Drive FC 102 |
| Alternative model code | FC-102P4K0T4E55H3XGX1XXSXXXXAXBPCXXXXDX |
| Product type | AC variable frequency drive |
| Rated output power | 4.0 kW |
| Motor rating | 5.0 HP |
| Continuous current | 8.2 A |
| Intermittent current | 9.02 A |
| 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 | A5 |
| RFI filter | Class A1/B (C1) |
| Brake chopper | No |
| Control panel | Graphical Local Control Panel |
| Option card | MCB-105 relay card |
| PCB coating | Not coated PCB |
| Mains option | Mains disconnect |
| Dimensions (H × W × D) | approx. 420 × 242 × 200 mm |
| Weight | approx. 11.53 kg |
| EAN | 5710108220419 |
| EMC Filter | Commercial |
The Danfoss 135N5849 is used to control the speed and torque of AC motors in HVAC systems, including fans, pumps, ventilation equipment and small refrigeration applications.
This drive is rated for 4.0 kW / 5.0 HP motor applications.
The drive operates from a three-phase 380–480 V AC supply.
The Danfoss 135N5849 has an IP55 / Type 12 enclosure, providing enhanced protection for suitable commercial and industrial HVAC environments.
This configuration includes the MCB-105 relay card, providing additional relay outputs for control and signalling functions.
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.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...