Product Description:

The NFD02.1-480-016 is a three-phase mains filter manufactured by Bosch Rexroth Indramat for the NFD Mains Filters series. Installed ahead of drive controllers, it suppresses conducted interference on the supply leads and helps prevent back-fed noise from reaching the facility power bus. By maintaining clean power lines, the component helps servo axes, PLCs, and auxiliary electronics meet electromagnetic compatibility requirements in industrial automation systems.

The filter handles a continuous line current of 16 A on all three poles, and its circuitry is rated for a network with 480 VAC (+10%) tolerance. This allows the unit to operate on standard 460-volt installations without derating. The filter uses 3 phases, so insertion loss remains symmetrical across each conductor. During transient overloads, it withstands 1.5 × IN for 1 min/h, allowing brief surges from motor inrush or regenerative energy without thermal damage. Internal resistive and capacitive elements generate only 9 W of dissipation at the reference load, which helps limit temperature rise near heat-sensitive electronics.

Dielectric strength between the line and enclosure is proven by a test pulse of 2800 VDC for 2 s, which verifies adequate clearance and creepage. The metal housing carries an IP10 rating, so it should be mounted in an enclosed panel where accidental contact is prevented and airflow can still reach the surface. Reliable operation is permitted up to 45 °C ambient, and above this value additional convection or derating is required. Installation terminals accept 6 mm² (AWG 10) supply conductors, while a separate 10 mm² protective earth connection diverts touch current. Brush shunt links use a 1.34 mm² (AWG 16) wire cross-section to equalize potential across the filter core. Despite these conductive paths, overall mass remains only 1.7 kg, which supports direct DIN-rail or back-plate mounting without heavy support brackets.