Danfoss 135N5752 VLT HVAC Drive FC 102, a 3.0 kW three phase AC variable frequency drive with IP55 Type 12 backplate enclosure, RFI Class A1/B filter and MCB-109 I/O with RTC back-up for HVAC applications.
£1,085.60
The Danfoss 135N5752 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 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 3.0 kW / 4.0 HP and a three-phase 380–480 V AC supply, the Danfoss 135N5752 is ideal for small to medium HVAC motor applications. Its IP55 / Type 12 backplate enclosure, RFI Class A1/B filter and MCB-109 I/O with RTC back-up provide a flexible solution for commercial and industrial HVAC installations.
Variable frequency drives such as the Danfoss 135N5752 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-109 I/O option with RTC back-up adds extra control flexibility for HVAC automation and monitoring applications.
| Power | 3 kW |
|---|---|
| Voltage | 480 V |
| Phase | Three Phase |
| IP Rating | IP55 |
| Series | VLT® HVAC Drive FC 102 |
| Alternative model code | FC-102P3K0T4Y55H3XGXXXXSXXXXAXB0CXXXXDX |
| Product type | AC variable frequency drive |
| Rated output power | 3.0 kW |
| Motor rating | 4.0 HP |
| Input voltage | 380–480 V AC |
| Input phases | Three phase |
| Output phases | Three phase |
| Frequency | 50 / 60 Hz |
| Protection rating | IP55 / Type 12 Backplate |
| Frame size | A4 |
| RFI filter | Class A1/B (C1) |
| Brake chopper | No |
| Control panel | Graphical Local Control Panel |
| Option card | MCB-109 I/O with RTC back-up |
| PCB coating | Not coated PCB |
| Mains option | No mains option |
| Dimensions (H × W × D) | approx. 390 × 200 × 175 mm |
| EAN | 5710108219512 |
| EMC Filter | Commercial |
The Danfoss 135N5752 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 3.0 kW / 4.0 HP motor applications.
The drive operates from a three-phase 380–480 V AC supply.
The Danfoss 135N5752 has an IP55 / Type 12 backplate enclosure, providing enhanced protection for suitable commercial and industrial HVAC environments.
This configuration includes the MCB-109 I/O option with RTC back-up, offering additional control and real-time clock functionality.
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.
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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...
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...