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iC7-Aqua

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Achieve peak performance in water management

In the world of water management, control and efficiency are paramount. The iC7-Aqua drive is engineered to provide precise control over your pump systems, leading to significant energy savings, reduced mechanical stress, and improved system performance. Whether you are managing municipal water distribution, treating wastewater, performing desalination or handling industrial water purification, the iC7-Aqua is your trusted partner for optimized operations. Your ambition. Our drive.

How does a VFD work on a pump?

A variable frequency drive (VFD) works by controlling the speed of a pump. Instead of running the pump at a constant full speed, the VFD adjusts the speed of the pump to maintain flow or pressure. By meeting actual system demand, VFDs for pumps can:

  • Save significant energy: Reducing pump speed by just 20% can lead to energy savings of up to 50%
  • Reduce mechanical wear: Soft starting and stopping reduces water hammer and mechanical stress on pipes, valves, and the pump itself
  • Improve process control: Maintain constant pressure, flow, or water level with high precision

Supply voltage and power range

  • Standard drives: 3 x 380-480 V AC…0.37-710 kW (0.5-1000 hp)
  • ULH drives: 380-480 V AC.... 22-160 kW (30-250 hp)

Find the drive to fit your application

iC7-Aqua: VFD for water applications
iC7-Aqua: VFD for water applications

The standard iC7-Aqua frequency converter is packed with features designed to protect your equipment, save energy, and simplify commissioning and maintenance.

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Ultra low-harmonic drives
iC7-Aqua ULH: Ultra low-harmonic drives

For applications with sensitive power grids or strict harmonic distortion limits, the iC7-Aqua ULH (ultra low-harmonic) variant is the ultimate solution. These ultra low-harmonic drives ensure a clean power supply without compromising on performance.

Fact sheet Selection guide Design guide Application guide Product store
ultra low-harmonic variants

Manage harmonics with ULH drives

Discover how our ultra low-harmonic variants can help you stay compliant, cost effectively.

Read the fact sheet

Features and benefits

ultra low-harmonic drive
ULH drive: More reliable than ever

The iC7-Aqua ULH variant is a leading ultra low-harmonic drive, ensuring compliance and minimizing electrical disturbances. This makes it one of the most effective harmonic mitigation VFDs for water applications available.

Read the fact sheet
VFD for pumps
Secure-by-design: Intelligent security supports your utility

With market-leading hardware-based protection, your VFD for pumps is safe from unauthorized access. A crypto chip ensures end-to-end encrypted data transfer.

More about security in the iC7 series

Dedicated pump and application protection

  • Dry run detection: Protects your pump from damage by detecting when it is running without water

  • End-of-curve detection: Prevents the pump from operating outside its recommended range, protecting against leakage

  • Pipe fill mode and check valve ramp: Eliminates water hammer and pressure surges, protecting pipes and reducing the need for external soft-close valves

  • Condition monitoring: An integrated protection function continuously monitors motor stator winding, vibration, and load envelope to give you early warning of issues. Early warning facilitates timely action to prevent downtime

Energy and cost savings

  • Flow compensation and sleep mode: Intelligently adjusts operation during periods of low or no demand, to save energy

  • Multi-pump controller: Manages multi-pump systems for optimal efficiency and uptime, reducing equipment costs

  • Automatic Energy Optimization (AEO) and Automatic Motor Adaptation (AMA): Enhanced efficiency at part load with improved algorithms

Intuitive and easy to use: Simplify commissioning and operation

  • The graphical control panel features a large display with intuitive menus and setup assistants for easy commissioning

  • Easy installation with pluggable terminals and ample cable space simplifies the setup process

  • MyDrive® Insight is part of a suite of engineering tools for easy monitoring, parameterization, and troubleshooting

Seamless system integration: Connect with ease and security

  • Embedded fieldbus options support a wide range of protocols including EtherNet/IP, PROFINET, Modbus TCP, EtherCAT, and Modbus RTU for perfect system integration

  • Integrated cybersecurity with hardware-level security ensures your system is protected against unauthorized access

  • Integrated functional safety (STO) meets SIL3 Ple safety levels. Internal diagnostics with no mechanical moving parts ensure a longer, safer lifespan

Ultra low-harmonic (ULH) drives: For applications with sensitive power grids, the iC7-Aqua ULH variant provides an ultra-low harmonic solution

  • Maintains a total harmonic current distortion (THDi) of less than 3% at full load, 3-5% at partial loads, to protect sensitive electronic equipment

  • Achieves a power factor of 1.0, which can eliminate the need for external power factor correction equipment

  • Fully integrated and compact design: Single unit 3-wire in, 3-wire out simplifies installation

  • Significant cost gains due to smaller system components: The clean power profile helps you avoid oversizing system components, like supply transformers and switchgear

  • High efficiency: Achieve lower energy losses compared with conventional ULH drives, contributing to lower operating costs

  • Future-proof compliance: Ready to meet harmonic standards of the future

Peak performance in water management: iC7-Aqua

Next-generation VFD, delivering robust performance, advanced control, and a future-proof design for all water industry needs.

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Next-generation VFDs

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Man standing at a virtual screen, surrounded by the iC7 halo

iC7 series: Rethinking drives

With more than 1,000 researchers and developers focusing every effort on breaking new ground, we’ve been able to create VFDs that are smaller and better performing than anything you’ve ever seen — and packed with even more power, quality, and reliability. The iC7-Aqua is a testament to this, offering the most energy-efficient pump drives for a sustainable future.

Discover our approach