R911286920 (NFD03.1-480-055)

NFD Mains Filters

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The R911286920 (NFD03.1-480-055) is a three-phase main filter produced by Bosch Rexroth Indramat, from the NFD03 series. It is primarily designed to minimize mains pollution and suppress cable capacitance-induced current leaks. This model is particularly useful with servo amplifiers without built-in filters and is compatible with HCS converters and three-phase drive controllers. Sporting a variant code of 1, the R911286920 (NFD03.1-480-055) operates on a nominal AC voltage of 480 volts with a continuous current of 55 Amperes. Efficiency is maintained up to 50 degrees Celsius and during storage and operation, it can tolerate temperatures between -25 degrees Celsius and 100 degrees Celsius. With power dissipation at 25.9 Watts, it weighs approximately 2 kg and measures 90 mm (width) x 220 mm (height) x 105 mm (depth). Compliant with IP 20 protection class, it should not be connected in series during installation due to resonance effects risks. This model operates at PWM frequencies of 4 kHz, 8 kHz, 12 kHz, and 16 kHz. A worldwide shipping is available with a one-year warranty provided by Indramat USA.