Danfoss 131B9521 VLT HVAC Drive FC 102, a 3.0 kW three-phase AC variable frequency drive with PROFIBUS DP MCA 101, designed for HVAC fans, pumps, compressors and refrigeration applications.
£698.50
The Danfoss 131B9521 is a compact and efficient AC variable frequency drive (VFD) from the Danfoss VLT HVAC Drive FC 102 series, designed specifically for ventilation, heating, air conditioning and refrigeration applications. It provides precise motor speed control for HVAC equipment, helping improve energy efficiency, reduce running costs and support dependable long-term operation.
The VLT HVAC Drive FC 102 range is engineered with dedicated HVAC functionality, making it ideal for controlling fans, pumps and compressors in commercial buildings, plant rooms and industrial facilities. Its intelligent application features help optimise airflow, pressure and circulation while simplifying commissioning and system integration.
With a rated output power of 3.0 kW / 4.0 HP and a three-phase 380-480 V AC supply, the Danfoss 131B9521 is suitable for small to medium HVAC motor control applications. Its IP20 / chassis enclosure, graphical local control panel and PROFIBUS DP MCA 101 option make it well suited to panel-based HVAC automation systems.
The Danfoss VLT HVAC Drive FC 102 is designed to regulate motor speed according to real HVAC demand. By adjusting the output frequency and voltage supplied to the motor, the drive allows fans, pumps and compressors to operate efficiently while maintaining stable airflow, pressure or circulation.
The integrated PROFIBUS DP option makes the 131B9521 suitable for automation networks where reliable communication with PLCs and building management systems is required. This allows HVAC systems to be monitored and controlled more effectively as part of a wider building automation strategy.
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| Power | 3 kW | |
|---|---|---|
| Voltage | 480 V | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| EMC Filter | Commercial | |
| Series | VLT HVAC Drive FC 102 | |
| Part number | 131B9521 | |
| Model code | FC-102P3K0T4E20H1XGXXXXSXXXXA0BXCXXXXDX | |
| Product type | AC variable frequency drive | |
| Rated output power | 3.0 kW / 4.0 HP | |
| Input voltage | 380-480 V AC | |
| Input phases | 3-phase | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 / chassis | |
| RFI filter | Class A1/B (C1) | |
| Brake chopper | No brake chopper | |
| Control panel | Graphical Local Control Panel | |
| PCB coating | Not coated | |
| Mains option | No mains option | |
| A option | PROFIBUS DP MCA 101 | |
| B option | No B option | |
| Frame size | A2 | |
| Dimensions (H × W × D) | approx. 268 × 90 × 205 mm | |
| Net weight | approx. 4.69 kg | |
| Gross weight | approx. 5.536 kg | |
| EAN | 5702427385689 |
The Danfoss 131B9521 is used to control the speed of AC motors in HVAC, ventilation, heating and refrigeration applications.
This model 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 131B9521 has an IP20 / chassis enclosure, making it suitable for installation inside an electrical panel or control cabinet.
Yes, this model includes the PROFIBUS DP MCA 101 A option for integration with compatible automation networks.
Danfoss VLT HVAC Drives are widely used by building services engineers, facility managers and industrial users to deliver reliable motor control, improved energy efficiency and dependable HVAC system performance.
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