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131U4355 Danfoss VLT FC-102 HVAC Drive 18.5 KW / 25 HP, 380 - 480 VAC, IP55
MPN: 131U4355
Alt. SKU: FC-102P18KT4E55H3XNXXOXSXXXXAXBXCXXXXDX
Special Price
£2,246.40
£1,872.00
Regular Price
£3,744.00
Why Choose the Danfoss 131U4355 VLT® HVAC Drive FC-102?
The Danfoss 131U4355 is a robust and highly reliable variable frequency drive (VFD) designed for precise speed control of three-phase motors in heating, ventilation, air conditioning and refrigeration systems. As part of the trusted Danfoss VLT® HVAC Drive FC-102 series, it is engineered to improve energy efficiency, optimise motor performance and support dependable operation in commercial and industrial HVAC applications.
This drive helps HVAC equipment operate according to real system demand by adjusting motor speed instead of relying on fixed-speed operation. The FC-102 platform provides dedicated HVAC functionality, robust construction and flexible integration with building automation systems, making it suitable for new installations, upgrades and replacement drive applications.
With a rated output power of 18.5 kW / 25 HP and a three-phase 380–480 V AC supply, the Danfoss 131U4355 is ideal for larger fans, pumps, compressors and ventilation equipment. Its IP55 / Type 12 enclosure, RFI Class A1/B (C1) filter and numerical local control panel support reliable installation, commissioning and operation in demanding HVAC environments.
Key Advantages
- Dedicated HVAC variable frequency drive for fans, pumps and compressors.
- 18.5 kW / 25 HP motor power rating for larger HVAC motor control applications.
- Three-phase 380–480 V AC input compatible with commercial and industrial power systems.
- IP55 / Type 12 enclosure for enhanced environmental protection.
- Integrated RFI Class A1/B (C1) filter for improved electromagnetic compatibility.
- Numerical local control panel for practical commissioning and operation.
Key Features
- Danfoss VLT® HVAC Drive FC-102 series.
- 18.5 kW / 25 HP rated output power.
- 37.5 A continuous current rating.
- Three-phase 380–480 V AC mains voltage.
- IP55 / Type 12 enclosure protection.
- Integrated H3 RFI Class A1/B (C1) filter.
- No brake chopper configuration.
- Numerical local control panel included.
- Not coated PCB.
- No mains option.
- Metric thread cable entries.
- Frame size B1.
Technical Specifications
- Manufacturer: Danfoss
- Series: VLT® HVAC Drive FC-102
- Model: FC-102P18KT4E55H3XNXXOXSXXXXAXBXCXXXXDX
- SKU: 131U4355
- Product type: Frequency converter / HVAC variable speed drive
- Rated output power: 18.5 kW / 25 HP
- Continuous current: 37.5 A
- Intermittent current: 41.2 A
- Input voltage: 380–480 V AC
- Input phases: Three phase
- Apparent power: 26 kVA
- Protection rating: IP55 / Type 12
- RFI filter: H3 RFI Class A1/B (C1)
- Brake chopper: No brake chopper
- Control panel: Numerical local control panel
- PCB coating: Not coated PCB
- Mains option: No mains option
- Cable entry: Metric thread cable entry
- Frame size: B1
- Dimensions (H × W × D): approx. 494 × 243 × 261 mm
- Net weight: approx. 21.57 kg
Reliable Motor Control for HVAC Systems
Variable frequency drives such as the Danfoss VLT® HVAC Drive FC-102 regulate motor speed by adjusting output voltage and frequency. This allows HVAC equipment to match output to system demand, helping reduce energy use, mechanical stress and unnecessary wear.
The FC-102 series is purpose-built for heating, ventilation, air conditioning and refrigeration applications. Its dedicated HVAC functions support stable control of fans, pumps and compressors while helping improve system reliability and reduce operating costs.
Typical Applications
- Large ventilation and extraction systems.
- Air handling units.
- Heating and cooling circulation pumps.
- Compressors and refrigeration systems.
- Commercial HVAC plant rooms.
- Building management and automation systems.
Frequently Asked Questions
What is the Danfoss 131U4355 used for?
The Danfoss 131U4355 is used to control three-phase motors in HVAC applications such as fans, pumps, compressors, ventilation systems and refrigeration plant.
What motor power is supported by this drive?
The drive supports motors with a rated output power of approximately 18.5 kW / 25 HP.
What supply voltage does the drive require?
The Danfoss 131U4355 operates from a three-phase 380–480 V AC supply.
What enclosure rating does this drive have?
This drive has an IP55 / Type 12 enclosure, making it suitable for demanding HVAC and building services environments.
Does the Danfoss 131U4355 include a local control panel?
Yes, this configuration includes a numerical local control panel for practical commissioning, monitoring and operation.
Trusted by HVAC Engineers Worldwide
Danfoss VLT® HVAC Drive FC-102 frequency converters are widely used by HVAC engineers, contractors and building services professionals to deliver efficient motor control, reliable operation and reduced energy consumption in modern buildings.
| Manufacturer Part Number | 131U4355 |
|---|---|
| Barcode | 5702427956575 |
| Height | 494mm |
| Width | 243mm |
| Depth | 261mm |
| Filter | Filter Included |
| Input Phases | Three Phase |
| Degree of protection (IP) | IP55 |
| KW Rating | 18.5kW |
| Output Phases | Three phase |
| VSD Range | Danfoss VLT FC102 |
| Manufacturer | Danfoss |
| Alternative Product SKU | FC-102P18KT4E55H3XNXXOXSXXXXAXBXCXXXXDX |
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.
