LC Filter/ LCL Filter

Applications and description

LCL filters are used to connect AIC (active infeed converter) and AFE (active front end) drives to the mains.

Due to the increasing use of AFE / AIC, more LC filters or LCL filters are needed.

The LCL filters are also of interest for projects in the DC-AC product range, which feed electric energy from wind generators or PV inverters into the grid.

Applications of regenerative AFE drives are lifts, cranes or similar transport systems, tools or other machines with many brake switching cycles and presses.

Technical Data

EN61558-2-20

Supply voltage3x 200 – 3x 690V
Frequency16 2/3  – 1500 Hz
Power range5 – 2000 A
Max. ambient temerature-10°C bis 85 °C (optinal liquid cooled or active air cooling)
Degree of protectionIP00-IP65
Connections5 A – 63  A Screw terminals, finger-safe according to BGV A3

> 63 A Terminal lugs

Elementary frequenzy2- 80 kHz
Insulation classF  or H
Intermediate circuit voltage540 V DC – 1300 V DC

We develop, design, calculate and build filters according to your specifications, depending on the location.