Schaffner LC - LCL filters

LC - LCL filters

Used on the grid side of renewable energy sources

Schaffner LC- and LCL-filters are harmonic filters usually used on the grid side of renewable energy sources, like wind energy and photovoltaic (PV) plants. These devices improve and ensure the overall power quality of the produced energy.

The filtering of the inverters’ switching frequency is crucial for an optimized system configuration and the fulfillment of national grid standards. We design and produce custom-made LC – LCL filters, compatible with your transformers and other power magnetic components.


  • Phases: 1 and 3
  • Current range: up to 5 kA
  • Short circuit current withstand: up to 50 kA
  • Voltage range: up to 36 kV
  • Fundamental frequency: up to 1 kHz
  • Switching frequency: up to 20 kHz
  • Insulation classes: 180 / 200 / 220
  • Protection class: up to IP67 and NEMA 6/6P
  • Cooling methods: AN, AF, WD