Danfoss 131B9934 VLT HVAC Drive FC-102 frequency converter, a 4.0 kW three-phase 380–480 V AC variable frequency drive with IP20 chassis enclosure, RFI Class A1/B filter and LonWorks MCA 108 communication for HVAC motor control.
£752.95
The Danfoss 131B9934 is a reliable and energy-efficient variable frequency drive (VFD) designed for precise motor speed control in HVAC and building services applications. As part of the proven Danfoss VLT® HVAC Drive FC-102 series, it is specifically engineered for heating, ventilation, air conditioning and refrigeration systems where dependable operation and energy optimisation are essential.
This drive provides advanced HVAC motor control functionality while helping reduce energy consumption, improve system performance and minimise mechanical stress on connected equipment. The FC-102 platform includes dedicated HVAC features, intuitive operation and flexible communication options for easy integration into building automation and BMS environments.
With a rated output power of 4.0 kW / 5.0 HP and a three-phase 380–480 V AC supply, the Danfoss 131B9934 is ideal for fans, pumps, compressors and air handling systems. Its IP20 chassis format is designed for installation inside electrical panels and HVAC control cabinets.
Variable frequency drives such as the Danfoss FC-102 regulate motor speed by adjusting output voltage and frequency. This allows HVAC equipment to respond to real demand, helping reduce energy consumption while improving comfort control, process stability and equipment life.
The Danfoss 131B9934 is designed for building services engineers, facilities teams and automation specialists who require dependable motor control in heating, ventilation and cooling systems. Its HVAC-specific features, communication capability and compact cabinet-mounted format make it suitable for both new installations and replacement projects.
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| Power | 4 kW | |
|---|---|---|
| Voltage | 480 V | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| EMC Filter | Commercial | |
| Series | VLT® HVAC Drive FC-102 | |
| Model code | FC-102P4K0T4E20H3XGXXXXSXXXXAGBXCXXXXDX | |
| Product type | Frequency converter / variable frequency drive | |
| Rated output power | 4.0 kW / 5.0 HP | |
| Input voltage | 380–480 V AC | |
| Input phases | 3-phase | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 / Chassis | |
| Mounting type | Cabinet / panel mounting | |
| Frame size | A2 | |
| RFI filter | Class A1/B (C1) | |
| Brake chopper | No brake chopper | |
| Communication option | LonWorks MCA 108 | |
| Local control panel | Graphical LCP | |
| PCB coating | Not coated PCB | |
| Mains option | No mains option | |
| Dimensions (H × W × D) | approx. 268 × 90 × 205 mm | |
| Weight | approx. 4.9 kg |
The Danfoss 131B9934 is used to control the speed and performance of three-phase AC motors in HVAC applications such as fans, pumps, compressors and ventilation equipment.
This drive supports motors with a rated output power of approximately 4.0 kW / 5.0 HP.
The Danfoss 131B9934 operates from a three-phase 380–480 V AC supply.
Yes, this configuration includes a LonWorks MCA 108 communication option for integration with building automation and BMS networks.
The drive is typically installed inside electrical control panels or HVAC control cabinets as part of commercial and industrial building services systems.
Danfoss VLT® HVAC drives are widely used by building services engineers, facilities managers and automation professionals to deliver reliable motor control, energy efficiency and long-term HVAC system performance.
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