We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
131B7641 Danfoss VLT HVAC Drive 18.5KW/25HP 380-480VAC IP66
MPN: 131B7641
Alt. SKU: FC-102P18KT4E66H2XGXXXXSXXXXAXBXCXXXXDX
Why Choose the Danfoss 131B7641 VLT HVAC Drive?
The Danfoss 131B7641 is a high-performance AC variable frequency drive (VFD) from the renowned Danfoss VLT HVAC Drive FC 102 series, specifically engineered for heating, ventilation and air conditioning applications. Designed to optimise the operation of pumps, fans and compressors, this drive delivers precise motor control while helping reduce energy consumption and operating costs.
The VLT HVAC Drive range incorporates intelligent HVAC-specific functionality that simplifies commissioning and improves system efficiency. With advanced control algorithms and integrated energy-saving features, the drive enables building operators and facility managers to achieve reliable performance while meeting modern environmental and energy regulations.
With a rated output power of 18.5 kW (25 HP) and a three-phase 380-480 V AC supply, the Danfoss 131B7641 is ideal for demanding HVAC installations requiring dependable motor control and robust operation. Its IP66 / NEMA 4X enclosure allows installation in challenging environments where protection against dust and water ingress is essential.
Key Advantages
- Designed specifically for HVAC applications.
- 18.5 kW (25 HP) motor power rating.
- Three-phase 380-480 V AC input.
- IP66 / NEMA 4X enclosure for harsh environments.
- Optimised control for pumps, fans and compressors.
- Energy-saving functionality helps reduce operating costs.
- User-friendly graphical local control panel.
- Reliable operation for commercial and industrial buildings.
Key Features
- Danfoss VLT HVAC Drive FC 102 series.
- 18.5 kW / 25 HP rated output power.
- 380-480 V AC three-phase supply.
- IP66 / NEMA 4X enclosure protection.
- Integrated HVAC application functions.
- Graphical local control panel (LCP).
- Advanced energy optimisation capabilities.
- Designed for pumps, fans and compressor applications.
- Compact and robust industrial construction.
Technical Specifications
- Manufacturer: Danfoss
- Series: VLT HVAC Drive FC 102
- Part number: 131B7641
- Model code: FC-102P18KT4E66H2XGXXXXSXXXXAXBXCXXXXDX
- Product type: AC variable frequency drive
- Rated output power: 18.5 kW (25 HP)
- Input voltage: 380-480 V AC
- Input phases: 3-phase
- Frequency: 50 / 60 Hz
- Protection rating: IP66 / NEMA 4X
- Integrated keypad: Graphical Local Control Panel
- Application: HVAC motor control
- Typical loads: Fans, pumps and compressors
Optimised Control for HVAC Systems
The Danfoss VLT HVAC Drive FC 102 has been developed specifically for HVAC environments, providing advanced control strategies that improve system efficiency and reliability. By regulating motor speed according to demand, the drive reduces energy consumption while maintaining precise environmental control.
Integrated HVAC functionality simplifies commissioning and operation, making the drive suitable for both new installations and retrofit projects. The robust enclosure and intelligent control features ensure long-term performance in commercial buildings, industrial facilities and infrastructure projects.
Typical Applications
- HVAC air handling units.
- Building ventilation systems.
- Chilled water and circulation pumps.
- Cooling towers.
- Industrial fan systems.
- Commercial and industrial compressor applications.
Frequently Asked Questions
What is the Danfoss 131B7641 used for?
The Danfoss 131B7641 is designed to control the speed of motors used in HVAC applications including fans, pumps and compressors.
What motor power does this drive support?
This model is rated for motors up to 18.5 kW (25 HP).
What supply voltage is required?
The drive operates from a three-phase 380-480 V AC power supply.
What enclosure rating does the drive have?
The drive features an IP66 / NEMA 4X enclosure for protection against dust and water ingress.
Which applications is this drive best suited for?
It is ideal for HVAC systems including pumps, ventilation fans, air handling units and compressors.
Trusted by HVAC Professionals Worldwide
Danfoss VLT HVAC Drives are widely used throughout commercial buildings and industrial facilities, delivering reliable motor control, energy savings and long-term operational performance.
| Manufacturer Part Number | 131B7641 |
|---|---|
| Barcode | 5702427359284 |
| Height | 494mm |
| Width | 243mm |
| Depth | 261mm |
| Filter | Filter Included |
| Input Phases | Three Phase |
| Degree of protection (IP) | IP66 |
| KW Rating | 18.5kW |
| Output Phases | Three phase |
| VSD Range | Danfoss VLT FC102 |
| Manufacturer | Danfoss |
| Alternative Product SKU | FC-102P18KT4E66H2XGXXXXSXXXXAXBXCXXXXDX |
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.
PC tools
VLT® Motion Control Tool MCT 10
VLT® Motion Control Tool MCT 31
Danfoss ecoSmart
Danfoss HCS (Harmonic Calculation Software)
Danfoss Servo Sizer
VLT® Energy Box
For further information on this product please get in touch with our team or visit the Danfoss website.