Product Description:

The 20.E6.T60-3000 is a three-phase electromagnetic compatibility filter manufactured by KEB within the Combiline EMC Filters series. The component is installed between a frequency inverter and the plant power grid to attenuate conducted emissions and to protect upstream equipment from high-frequency noise. By limiting differential and common-mode disturbances, it helps drive systems satisfy industrial electromagnetic standards and prevents interference with neighboring automation assets. This arrangement also helps maintain a cleaner electrical environment for nearby control hardware and communication lines.

Electrically, the filter is built for a three-phase network, with a nominal operating point of 400 V line-to-line and a nominal current of 100 A. The internal components are tuned for grids operating at 50/60 ±2 Hz, so it can be wired to most industrial mains without derating. A prospective fault current of up to 30 kA is tolerated, aligning with installations protected by gG fuses up to 100 A. Under steady load, the filter’s ferrite and capacitor network releases only 54 W of thermal power, a level that simplifies panel ventilation calculations. Mechanical terminations use cage clamps rated for a line-terminal tightening torque of 2.6 Nm, while the protective-earth lug accepts an M6 crimp connector that is secured at 14.2 Nm. These torque values help maintain reliable contact under vibration and thermal cycling.

In service, common-mode displacement current toward ground is limited to 2.02 mA, supporting personnel-protection circuits that trip at 30 mA. Factory validation is performed with a 55.6 mA test current at 2000 Hz to confirm consistent impedance across the filter stages. For transient load surges, the assembly tolerates 150 % of the rated current for 60 s, preventing nuisance shutdowns during motor acceleration. When the output is wired to an inverter, motor leads may extend to 100 m without violating attenuation targets, allowing placement of drives in remote control cabinets. Despite the high current rating, the housing weighs only 4.95 kg, reducing panel-rail loading and easing installation.