KNK02.1A-NR-B0012-A-U226-A4-NNNN

The Bosch Rexroth Indramat KNK02.1A-NR-B0012-A-U226-A4-NNNN from the KNK Mains Filters series provides robust mains filtering with a Supply System For Regenerative Devices only design. It operates on a Mains Connection Voltage of 380-500V and delivers a continuous Nominal Current of 12A. The filter uses a Cold Plate Mounting cooling type to maximize thermal transfer without moving parts. Its compact footprint integrates seamlessly into IndraDrive systems while maintaining high electrical performance.

Built to industrial protection standards, this module carries an IP65 protection category rating, guarding against dust ingress, non-corrosive liquids, and low-pressure water jets. It weighs 20 kg and meets both UL and CE compliance for global installations. The filter’s electromagnetic compatibility is classified as EMC category C3 according to DIN, ensuring minimal interference on connected drives. Internally, it features a leakage capacitance of 226 nF and an inductance per winding of 2.3 μH to smooth voltage spikes and suppress harmonics.

Under continuous operation at 12A, the KNK02.1A-NR-B0012-A-U226-A4-NNNN dissipates 175 W of heat through its cold plate interface, eliminating the need for fans and reducing maintenance. Its optimized thermal interface shortens startup procedures and improves long-term reliability. This mains filter is ideal for regenerative drive applications where precise voltage conditioning and high EMC performance are crucial.