Danfoss 131B9901 VLT HVAC Drive FC-102 variable frequency drive rated at 18.5 kW, 380-480 V AC three phase, IP55 enclosure, integrated RFI filter, graphical local control panel and mains disconnect for HVAC motor control applications.
£2,650.40
The Danfoss 131B9901 is a reliable and efficient 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. It is ideal for commercial and industrial HVAC systems requiring dependable performance, accurate control and reduced energy consumption.
As part of the FC-102 HVAC drive range, this model provides dedicated functionality for fans, pumps, compressors and building services equipment. Its IP55 / Type 12 backplate enclosure supports installation in demanding environments, while integrated RFI filtering helps support electromagnetic compatibility in commercial and industrial systems.
With a rated output power of 18.5 kW / 25 HP and a three-phase 380-480 V AC supply, the Danfoss 131B9901 is well suited to medium and high-duty HVAC motor control applications. This version also includes a mains disconnect and a graphical local control panel for practical isolation, commissioning and operation.
Variable frequency drives such as the Danfoss VLT® HVAC Drive FC-102 control motor speed by adjusting output frequency and voltage. This allows HVAC equipment to operate according to actual demand, reducing unnecessary energy use while improving airflow, pressure and temperature control.
The Danfoss 131B9901 is a practical choice for building services engineers, HVAC contractors and maintenance teams who require a protected drive with integrated isolation. Its graphical control panel, IP55 enclosure, mains disconnect and RFI filtering help simplify installation, commissioning and routine operation.
| Power | 18.5 kW |
|---|---|
| Voltage | 480 V |
| Phase | Three Phase |
| IP Rating | IP55 |
| Series | VLT® HVAC Drive FC-102 |
| Model code | FC-102P18KT4P55H2XGX1XXSXXXXAXBXCXXXXDX |
| Product type | HVAC frequency converter / variable speed drive |
| Rated output power | 18.5 kW / 25 HP |
| Input voltage | 380-480 V AC |
| Input phases | Three phase |
| Protection rating | IP55 / Type 12 backplate |
| RFI filter | Integrated RFI filter |
| Brake chopper | No brake chopper |
| Control panel | Graphical local control panel |
| Mains option | Mains disconnect |
| PCB coating | Not coated PCB |
| A option | No A option |
| B option | No B option |
| C1 option | No C1 option |
| D option | No D option |
| Frame size | B1 |
The Danfoss 131B9901 is used to control the speed of three-phase AC motors in HVAC applications such as fans, pumps, compressors, air handling units and building services equipment.
The drive has a rated output power of approximately 18.5 kW / 25 HP.
The Danfoss 131B9901 operates from a three-phase 380-480 V AC supply.
This model features an IP55 / Type 12 backplate enclosure, making it suitable for demanding HVAC and industrial installation environments.
Yes, this version includes a mains disconnect for practical isolation and maintenance support.
Danfoss VLT® HVAC drives are trusted by building services engineers, facilities teams and industrial maintenance professionals for efficient, reliable and precise motor control in demanding HVAC applications.
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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...