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131L2051 Danfoss VLT AQUA Drive FC 200 18.5 KW / 25 HP, 380 - 480 VAC, IP20
MPN: 131L2051
Alt. SKU: FC-202P18KT4E20H1XGXXXXSXXXXAXBYCXXXXD0
Why Choose the Danfoss 131L2051 VLT AQUA Drive?
The Danfoss 131L2051 is a high-performance VLT AQUA Drive FC 202 variable frequency drive (VFD), specifically engineered for water and wastewater applications. As part of the advanced Danfoss VLT AQUA Drive series, it delivers precise motor control, improved energy efficiency and long-term reliability for demanding industrial systems.
Designed for pump and fluid handling applications, this drive integrates intelligent control features that optimise system performance, reduce energy consumption and protect equipment from operational stress. The VLT AQUA Drive range is purpose-built to deliver high efficiency and reduced lifecycle costs in water infrastructure systems.
With a rated output power of 18.5 kW and operation on a three-phase 380–480 V AC supply, the 131L2051 is ideal for medium to high-power pump systems, including water treatment plants, HVAC circulation and industrial fluid handling applications.
Key Advantages
- Purpose-built variable frequency drive for water and wastewater systems.
- 18.5 kW motor power rating for demanding pump applications.
- Three-phase 380–480 V AC input for industrial compatibility.
- Optimised energy efficiency reduces operational costs.
- Advanced pump control features improve reliability and uptime.
- Designed for continuous-duty industrial environments.
Key Features
- Danfoss VLT AQUA Drive FC 202 series.
- 18.5 kW rated output power.
- Three-phase 380–480 V AC input supply.
- IP20 / chassis enclosure for panel mounting.
- RFI Class A1/B (C1) filter for EMC compliance.
- Graphical local control panel for easy operation.
- Integrated cascade control and pump protection functions.
- No brake chopper configuration for standard pump applications.
Technical Specifications
- Manufacturer: Danfoss
- Series: VLT AQUA Drive FC 202
- Model: 131L2051
- Product type: AC variable frequency drive
- Rated output power: 18.5 kW
- Rated output current: approx. 37 A
- Input voltage: 380–480 V AC
- Input phases: 3-phase
- Frequency: 50 / 60 Hz
- Protection rating: IP20 (chassis)
- Mounting type: Panel / cabinet mounting
- Frame size: B3
- RFI filter: Class A1/B (C1)
- Brake chopper: Not included
Optimised Control for Water and Pump Systems
The VLT AQUA Drive FC 202 regulates motor speed by adjusting output voltage and frequency, enabling precise control of flow and pressure. This improves process efficiency while reducing energy consumption and mechanical wear on pumps and associated equipment.
Its application-specific features, including cascade control and protection functions, ensure stable and reliable operation in water systems, helping prevent issues such as cavitation, dry running and pressure fluctuations.
Typical Applications
- Water and wastewater treatment plants.
- Booster and distribution pumping systems.
- HVAC water circulation systems.
- Industrial fluid handling and processing.
- Irrigation and agricultural pumping.
- Municipal infrastructure projects.
Frequently Asked Questions
What is the Danfoss 131L2051 used for?
This drive is designed for controlling pumps and motors in water and wastewater systems, improving efficiency and reliability.
What motor power is supported by this drive?
The drive supports motors with a rated output power of approximately 18.5 kW.
What supply voltage does the drive require?
The Danfoss 131L2051 operates from a three-phase 380–480 V AC supply.
Does this drive include a brake chopper?
No, this configuration does not include a brake chopper, making it suitable for standard pump and fan applications.
Where is this drive typically installed?
The drive is typically installed inside electrical control panels in industrial or municipal water infrastructure systems.
Trusted by Water Industry Professionals
Danfoss VLT AQUA Drives are widely trusted in water and wastewater applications, delivering reliable motor control, energy efficiency and reduced lifecycle costs.
| Manufacturer Part Number | 131L2051 |
|---|---|
| Barcode | 5710107125661 |
| Height | 399mm |
| Width | 165mm |
| Depth | 249mm |
| Filter | Filter Included |
| Degree of protection (IP) | IP20 |
| KW Rating | 18.5kW |
| VSD Range | Danfoss VLT AQUA Drive FC 200 |
| Manufacturer | Danfoss |
| Alternative Product SKU | FC-202P18KT4E20H1XGXXXXSXXXXAXBYCXXXXD0 |
This unit is designed for water and wastewater applications and has a variety of powerful features, with add-ons which can enhance performance. These drives are suited to new or retrofit projects.
Adding motor control to pumps and blowers used for water and wastewater treatment means it's easier to handle variable workloads. This drive provides between 10% and 30% savings in the first year alone, when compared to traditional drives, as it offers low maintenance costs and energy consumption.
The quick and user-friendly setup of water and pump settings reduces installation time ensuring a fast route to maximum energy efficiency and motor control.
Supply voltages and power range
1 x 200-240 V...1.1-22 kW
1 x 380-480 V...7.5-37 kW
3 x 200-240 V...0.25-45 kW
3 x 380-480 V...0.37 kW – 1 MW
3 x 525-600 V...0.75-90 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 380-690...250-1400 kW
Features and benefits
- Assets are protected thanks to specially designed software that prevents, for example, water hammering
- Energy efficiency is maximized as a result of the drives control algorithms and design which focus on reducing heat loss
- High energy savings related to air conditioning are ensured due to the unique back-channel-cooling concept that transfers 90% of heat away from the room
- Electromagnetic interference and harmonic distortion are reduced thanks to the built-in, scalable RFI filter and integrated DC link chokes
- Perfect system integration and adaptation to the application are possible due to freely programmable warnings and alerts
- 3–8% energy savings are achieved as a result of Automatic Energy Optimization
Applications
Centrifugal pumps and blowers, positive displacement blowers.
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For further information on this product please get in touch with our team or visit the Danfoss website.