Low Voltage

Power Factor Correction Units

Built with Schneider Electric: VarSet, PowerLogic AccuSine, VarPlus
Free engineering tools
Amperage Cable sizing Voltage drop Lux Power factor Solar EV Charger Transformer LED Savings CCTV
Open Tools

Power Factor Correction (PFC) units inject reactive power into the network using switched capacitor banks, lifting the power factor closer to unity. This reduces utility penalties, lowers cable losses, frees transformer capacity, and stabilises voltage across the installation.

Schneider Electric's VarSet and PowerLogic AccuSine families cover detuned, contactor-switched, and active harmonic-filtering capacitor banks for environments with linear or non-linear loads.

Schneider Electric Source

For full technical specifications, datasheets, and certifications, refer to Schneider Electric's official product range:

VarSet, PowerLogic AccuSine, VarPlus

Power Factor improvement panel

Key Features

  • Standard, detuned, or active filter banks
  • Step sizes from 25 kVAr to 800 kVAr
  • Automatic regulation via VarPlus controllers
  • Harmonic filtering for non-linear loads
  • Indoor or outdoor enclosures, IP31 to IP54

Typical Applications

  • Industrial plants with motor-heavy loads
  • Large commercial and retail buildings
  • Petrochemical, oil & gas facilities
  • Sites with high utility penalty rates

Need a quote for Power Factor Correction Units?

Send us your project specs. Our power engineers will respond with a configured proposal.

Request a Quote All Power & Control Engineering Tools
FAQ

Frequently asked questions

How do Power Factor Correction (PFC) units work?

PFC units inject reactive power into the network using switched capacitor banks, lifting the power factor closer to unity. This reduces utility penalties, lowers cable losses, frees transformer capacity, and stabilises voltage across the installation.

What step sizes are available?

Step sizes range from 25 kVAr to 800 kVAr, with automatic regulation via VarPlus controllers.

Can PFC units handle non-linear loads with harmonics?

Yes. They are available as standard, detuned, or active filter banks, with harmonic filtering for non-linear loads, based on Schneider Electric's VarSet and PowerLogic AccuSine families.

What enclosure ratings are offered?

They come in indoor or outdoor enclosures rated IP31 to IP54.

Where are PFC units typically used?

Typical applications include industrial plants with motor-heavy loads, large commercial and retail buildings, petrochemical and oil & gas facilities, and sites with high utility penalty rates.

What is the difference between standard and detuned capacitor banks?

Standard banks suit installations with mostly linear loads, while detuned banks add reactors to protect the capacitors where harmonics are present. Active filter banks handle heavily non-linear loads.

How is the right step size and rating chosen?

Sizing depends on the load profile and the target power factor. Our power engineers review your specs and propose a configured bank, with step sizes from 25 kVAr to 800 kVAr.

Do PFC units help avoid utility penalties?

Yes. By lifting the power factor closer to unity, the units reduce reactive power drawn from the network, which lowers or eliminates utility penalties at sites with high penalty rates.