KNK Mains Filters

Bosch Rexroth Indramat KNK Mains Filters are drive-system power-conditioning units that combine mains filtering and mains choke functionality in one integrated assembly. The KNK series is used in industrial automation systems where line-side electrical conditioning and EMC support are required for connected drive equipment. Each unit is selected through its type code, which defines factors such as nominal current, EMC class, cooling method, and mounting arrangement. The series includes variants for three-phase AC mains supplies in the 380 to 500 V range, along with versions configured for regenerative drive applications. Installation options include cold-plate thermal-interface designs, insulated mounting versions, and protected configurations with ratings up to IP65. Overall, the KNK Mains Filters provide a configurable filtering platform for drive installations that need coordinated mains integration, electromagnetic compatibility support, and compact cabinet or machine-mounted power conditioning.