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131U9838 Danfoss VLT FC-102 HVAC Drive 3.0 KW / 4.0 HP, 380 - 480 VAC, IP55
MPN: 131U9838
Alt. SKU: FC-102P3K0T4Z55H2XNXXOXSXXXXAXBXCXXXXDX
Special Price
£771.84
£643.20
Regular Price
£1,286.40
Why Choose the Danfoss 131U9838 VLT HVAC Drive?
The Danfoss 131U9838 is a reliable and energy-efficient AC variable frequency drive (VFD) designed for accurate motor speed control in heating, ventilation, air conditioning and refrigeration systems. As part of the established Danfoss VLT® HVAC Drive FC 102 series, it is built to improve HVAC system efficiency, reduce motor stress and support dependable long-term operation.
This drive provides dedicated HVAC functionality for fans, pumps and compressors, helping building services engineers optimise airflow, pressure and temperature control. The FC 102 series includes intelligent application features that simplify commissioning, reduce external control requirements and help lower overall operating costs.
With a rated output power of 3.0 kW and a three-phase 380–480 V AC supply, the 131U9838 is suitable for commercial and industrial HVAC motor control applications. Its IP55 / Type 12 enclosure provides enhanced protection for demanding installation environments, while the A4 frame format supports practical mounting in plant rooms and building services systems.
Key Advantages
- Dedicated HVAC variable frequency drive for fans, pumps and compressors.
- 3.0 kW motor power rating suitable for HVAC and building services applications.
- Three-phase 380–480 V AC input compatible with industrial power systems.
- IP55 / Type 12 enclosure for enhanced environmental protection.
- Integrated RFI filtering supports electromagnetic compatibility.
- Numerical local control panel for straightforward setup and monitoring.
- Efficient motor speed control helps reduce energy use and equipment wear.
Key Features
- Danfoss VLT® HVAC Drive FC 102 series.
- 3.0 kW rated output power.
- 4.0 HP motor rating.
- 7.2 A continuous output current.
- Three-phase 380–480 V AC input supply.
- IP55 / Type 12 enclosure protection.
- H2 RFI filter / RFI Class A2 (C3).
- No brake chopper configuration.
- Numerical Local Control Panel.
- A4 frame size for compact HVAC installations.
Technical Specifications
- Manufacturer: Danfoss
- Series: VLT® HVAC Drive FC 102
- Model: 131U9838
- Type code: FC-102P3K0T4Z55H2XNXXOXSXXXXAXBXCXXXXDX
- Product type: AC variable frequency drive / frequency converter
- Rated output power: 3.0 kW
- Motor rating: 4.0 HP
- Continuous current: 7.2 A
- Intermittent current: 7.92 A
- Input voltage: 380–480 V AC
- Input phases: 3-phase
- kVA rating: 4.99 kVA
- Power loss: approx. 116 W
- Protection rating: IP55 / Type 12
- Frame size: A4
- RFI filter: H2 RFI filter / RFI Class A2 (C3)
- Brake chopper: Not included
- Control panel: Numerical Local Control Panel
- PCB coating: Not coated
- Mains option: No mains option
Efficient Motor Control for HVAC Systems
Variable frequency drives such as the Danfoss 131U9838 regulate motor speed by adjusting output frequency and voltage. This allows HVAC equipment to operate in line with real system demand, helping reduce unnecessary energy consumption while maintaining stable airflow, pressure and temperature control.
The VLT® HVAC Drive FC 102 series is designed for building services professionals who need reliable motor control for pumps, fans and refrigeration equipment. Its HVAC-focused functions, robust enclosure and practical control interface make it suitable for new installations, system upgrades and replacement projects.
Typical Applications
- Air handling units and ventilation systems.
- HVAC pumps and circulation systems.
- Commercial building services.
- Cooling towers and condenser fans.
- Refrigeration and chiller systems.
- Industrial fan and pump control.
Frequently Asked Questions
What is the Danfoss 131U9838 used for?
The Danfoss 131U9838 is used to control the speed of AC motors in HVAC applications such as fans, pumps, compressors and ventilation systems.
What motor power is supported by this drive?
The drive supports motors with a rated output power of approximately 3.0 kW / 4.0 HP.
What supply voltage does the drive require?
The 131U9838 operates from a three-phase 380–480 V AC supply.
What enclosure rating does this drive have?
The drive features an IP55 / Type 12 enclosure, providing enhanced protection for demanding HVAC and industrial environments.
Does the Danfoss 131U9838 include a brake chopper?
No, this specific configuration is supplied without an integrated brake chopper.
Trusted by HVAC Professionals Worldwide
Danfoss VLT HVAC Drives are trusted by facilities managers, HVAC engineers and building services professionals for reliable motor control, energy-efficient operation and long-term system performance.
| Manufacturer Part Number | 131U9838 |
|---|---|
| Barcode | 5710107014941 |
| Height | 390mm |
| Width | 200mm |
| Depth | 175mm |
| Filter | Filter Included |
| Input Phases | Three Phase |
| Degree of protection (IP) | IP55 |
| KW Rating | 3kW |
| Output Phases | Three phase |
| VSD Range | Danfoss VLT FC102 |
| Manufacturer | Danfoss |
| Alternative Product SKU | FC-102P3K0T4Z55H2XNXXOXSXXXXAXBXCXXXXDX |
Write Your Own Review
The VLT HVAC drive has built-in intelligence to give optimal process control to heating, ventilation and air conditioning (HVAC). It is simple to use and extremely cost-efficient, featuring a number of functions that are ideal for use with pumps, fans and compressors to save energy, meet environmental regulations and reduce costs in modern buildings.
The VLT HVAC drive has a compact, robust design and is ideally suited to locations where space is restricted. A selection of safety features, such as Safe Torque Off and Safe Maximum Speed, protect both applications and their operators.
Enclosures can be purchased separately, up to IP66, and an additional option available upon purchase is a unique coating to provide added protection for the circuit boards. Integrated DC chokes and RFI filters safeguard installations by minimizing harmonic distortion and electromagnetic.
Supply voltages and power range
3 x 200-240 V...1.1-45 kW
3 x 380-480 V...1.1 kW – 1 MW
3 x 525-600 V...1.1-90 kW
3 x 525-690 V...45 kW – 1.4 MW
Low harmonic drive
3 x 380-480 V...132-710 kW
12-pulse drive
3 x 380-480 V...250-200kW
Features and benefits
- There’s no need for external cooling or oversizing as the maximum ambient temperature is 50°C without derating
- PLC capacity is often unnecessary thanks to the Smart Logic Controller
- A low initial investment and easy upgrades are possible thanks to the modular concept with a wide range of options
- The need for external control and conversion equipment is avoided due to integrated pump, fan and compressor functionality
- 5–15% energy is saved as a result of the Automatic Energy Optimization function
- Less gateway solutions are needed thanks to a wide range of HVAC protocols for building management system controller connectivity
Applications
Pumps, fans, compressors.
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For further information on this product please get in touch with our team or visit the Danfoss website.
