Modular system with smart controller

Powerside active harmonic filters provide a fast return on investment. The quick and effective response of a PowerAct active harmonic filter to power system variations enables higher process reliability, longer equipment life, reduced energy costs, and dependable productivity. PowerAct dramatically improves power quality by mitigating harmonics, stabilizing voltage, balancing phase loads, and compensating for poor power factor. It’s a core building block of our smart grid product solutions. PowerAct makes it easy to comply with power quality standards and demanding grid codes.

PowerAct comes equipped with a smart controller for automatic harmonic correction. It features 3-level IGBT Inverter topology, a 7” touch-screen user interface, and dedicated cooling chimney that protects electronics keeping them cool. Designed for small areas, PowerAct can grow to 750A inside one cabinet. The result is a flexible, controlled, and compact, harmonic filter that is safe, easy to operate, and compliant with standard communication protocols, and meets IEEE 519-2014 harmonic requirements.

PowerAct 750A


  • Compensation for all odd harmonics up to the 51st order, with no limitation
  • 4 priority settings that compensate for harmonics, dynamic reactive power, voltage control and unbalanced loads
  • Full power up to 800 V and tolerance to overvoltage category III up to 1000 V
  • 3-level IGBT inverter topology with DC-bus film capacitors
  • Dedicated cooling chimney protects electronics
  • Ability to grow to 750A inside one cabinet
  • Current and voltage control compensation, eliminating the installation of a current sensor
  • Intuitive HMI via local 7” touch screen or remote access via TCP/IP
  • A predictive algorithm that provides anti-resonance protection during network changes
  • Advanced and comprehensive monitoring and reporting
  • Compliant with IEEE-519-2014, EN 55011, class A1 and others
  • 20-year life expectancy under normal operating conditions
  • Wall-mount unit available


  • Protects equipment from harmonics generated by other industrial operations
  • Stabilizes voltage with Var compensation
  • Increases operational reliability by reducing maintenance repairs
  • Extends the lifetime of electrical equipment
  • Provides additional capacity in an existing electrical network
  • Eliminates the need for engineering analysis
  • Reduces energy costs, lowering CO2 emissions
  • Fast return on investment


PowerAct is your go-to active harmonic filter perfect for use in sensitive industrial and commercial environments, as well as in infrastructure applications where non-linear loads are present including:

  • Motors with variable frequency and variable speed drives in medium and large industrial processes
  • High pressure pumps with variable frequency drives (VFDs), uninterrupted power supply (UPS), ozone generators, UV lights in water treatment plants
  • HVAC and lighting systems in data centers and commercial buildings
  • Variable speed generators in wind power generation to prevent electrical resonance
  • Magnetic Resonance Imaging (MRI) in medical facilities and hospitals
  • Sensitive electronics in commercial buildings affected by harmonic currents in neutral lines caused by single-phase, non-linear loads