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131B9934 Danfoss VLT FC-102 HVAC Drive 4.0 KW / 5.5 HP, 380 – 480 VAC, IP20
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
Why Choose the Danfoss 131B9934 VLT® HVAC Drive FC-102?
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.
Key Advantages
- Purpose-built HVAC variable frequency drive for building services and ventilation systems.
- 4.0 kW / 5.0 HP motor power rating suitable for fans, pumps and compressors.
- Three-phase 380–480 V AC input compatible with commercial and industrial power networks.
- Integrated RFI Class A1/B (C1) filter for improved EMC performance.
- LonWorks MCA 108 communication option for BMS and building automation integration.
- Efficient motor speed control helps reduce running costs and improve HVAC system efficiency.
Key Features
- Danfoss VLT® HVAC Drive FC-102 series.
- 4.0 kW / 5.0 HP rated output power.
- Three-phase 380–480 V AC input supply.
- IP20 / chassis enclosure.
- Integrated RFI Class A1/B (C1) filter.
- Graphical local control panel included.
- LonWorks MCA 108 communication option.
- A2 frame size.
- No brake chopper configuration.
- Latest standard software release.
Reliable HVAC Motor Control
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.
Typical Applications
- Air handling units and ventilation systems.
- HVAC pumps and circulation systems.
- Commercial and industrial fan control.
- Compressors and refrigeration equipment.
- Building management and automation systems.
- Energy-efficient heating and cooling installations.
Technical Specifications
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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 |
Frequently Asked Questions
What is the Danfoss 131B9934 used for?
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.
What motor power is supported by this drive?
This drive supports motors with a rated output power of approximately 4.0 kW / 5.0 HP.
What supply voltage does the drive require?
The Danfoss 131B9934 operates from a three-phase 380–480 V AC supply.
Does the drive include communication capabilities?
Yes, this configuration includes a LonWorks MCA 108 communication option for integration with building automation and BMS networks.
Where is this drive typically installed?
The drive is typically installed inside electrical control panels or HVAC control cabinets as part of commercial and industrial building services systems.
Trusted by HVAC Engineers Worldwide
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.
