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134L3994 Danfoss VLT AQUA Drive FC 200 3.0 KW / 4.0 HP, 380 - 480 VAC, IP20

MPN: 134L3994

Alt. SKU: FC-202P3K0T4E20H3TGXXXXSXXXXA0BXCXXXXDX

Special Price £1,125.00 £937.50 Regular Price £1,500.00

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Why Choose the Danfoss 134L3994 VLT® AQUA Drive FC 202?

The Danfoss 134L3994 is a compact and efficient VLT® AQUA Drive FC 202, purpose-built for water, wastewater and industrial fluid handling systems. This advanced variable frequency drive (VFD) delivers precise motor control, improved energy efficiency and reliable operation in demanding environments.

The VLT® AQUA Drive series is specifically engineered for pump and fan applications, featuring intelligent control functions such as pressure regulation, flow optimisation and cascade pump control. These capabilities help reduce energy consumption, minimise hydraulic stress and ensure stable system performance across critical infrastructure.

With a rated output power of 3.0 kW and compatibility with three-phase 380–480 V AC supply, the Danfoss 134L3994 is ideal for compact pump systems, HVAC installations and industrial processes requiring efficient and stable motor control.

Key Advantages

  • Purpose-built AQUA drive for water and wastewater systems.
  • 3.0 kW motor capacity for compact applications.
  • Three-phase 380–480 V AC input compatibility.
  • Advanced energy optimisation reduces operating costs.
  • Improves system reliability and reduces hydraulic stress.
  • Compact design for easy panel integration.

Key Features

  • Danfoss VLT® AQUA Drive FC 202 series.
  • 3.0 kW (4 HP) rated output power.
  • Three-phase 380–480 V AC input supply.
  • IP20 chassis design for cabinet installation.
  • RFI Class A1/B (C1) filter for EMC compliance.
  • Integrated graphical local control panel (LCP).
  • Safe Torque Off (STO) safety function.
  • PROFIBUS DP (MCA 101) communication support.

Technical Specifications

  • Manufacturer: Danfoss
  • Series: VLT® AQUA Drive FC 202
  • Model: 134L3994
  • Product type: AC variable frequency drive
  • Rated output power: 3.0 kW (4 HP)
  • 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: A2
  • RFI filter: Class A1/B (C1)
  • Brake function: Safe Stop (STO)
  • PCB coating: Not coated
  • Communication: PROFIBUS DP (MCA 101)

Efficient Control for Pump Systems

The VLT® AQUA Drive FC 202 regulates motor speed by adjusting output voltage and frequency, enabling precise control of flow, pressure and pump performance. This improves energy efficiency while reducing wear on equipment and extending system lifespan.

With integrated features such as Automatic Energy Optimisation and application-specific control algorithms, the drive is ideal for water treatment systems, irrigation and industrial processes where efficiency and reliability are essential.

Typical Applications

  • Water and wastewater treatment systems.
  • Booster pump and pressure control systems.
  • HVAC and building services.
  • Irrigation and water distribution systems.
  • Industrial fluid handling applications.

Frequently Asked Questions

What is the Danfoss 134L3994 used for?

This drive is designed for controlling pumps and motors in water and wastewater applications, ensuring efficient and stable system operation.

What motor power does this drive support?

It supports motors with a rated output power of 3.0 kW.

What supply voltage does it require?

The drive operates on a three-phase 380–480 V AC supply.

Does it include safety features?

Yes, it includes Safe Torque Off (STO) for safe motor shutdown.

Where is this drive installed?

It is designed for installation inside electrical control panels due to its IP20 chassis construction.

Trusted by Water Industry Professionals

Danfoss VLT® AQUA Drives are widely trusted worldwide for delivering reliable, energy-efficient and application-specific motor control in water and wastewater systems.
More Information
Manufacturer Part Number 134L3994
Barcode 5710107791460
Height 268mm
Width 90mm
Depth 205mm
Filter Filter Included
Degree of protection (IP) IP20
KW Rating 3kW
VSD Range Danfoss VLT AQUA Drive FC 200
Manufacturer Danfoss
Alternative Product SKU FC-202P3K0T4E20H3TGXXXXSXXXXA0BXCXXXXDX
Write Your Own Review
You're reviewing:134L3994 Danfoss VLT AQUA Drive FC 200 3.0 KW / 4.0 HP, 380 - 480 VAC, IP20

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.