NFD02.2-480-055 Bosch Rexroth Indramat
MPN: R911279998
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The Bosch Rexroth Indramat NFD02.2-480-055 is a mains filter from the NFD Mains Filters series with a rated mains current of 55 Amps and supports an AC voltage up to 480 Volts. It has a protection rating of IP10, accommodates three phases, and operates at frequencies up to 60 Hz. The unit weighs 3.1 kilograms and is designed for ambient temperatures ranging from minus 25 to 85 degrees Celsius.
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Product Description:
The NFD02.2-480-055 is a passive mains filter manufactured by Bosch Rexroth Indramat within the NFD Mains Filters series. It is installed between the plant supply and variable-frequency drives or servo controllers to attenuate conducted electromagnetic interference and improve compliance with conducted emissions limits. Designed for industrial three-phase networks, the unit conditions all incoming lines without adding active components, which helps nearby automation equipment operate with less electrical noise on shared power lines.
It supports a rated mains current of 55 A, so it can be wired ahead of standard medium-power inverters and servo packs. The input can reach a maximum of AC 480 V +10%, matching international 400/480 V utility ranges, and the filter maintains full attenuation up to 60 Hz, the highest expected line frequency in North American grids. All electrical ratings are referenced to an ambient equipment temperature of 45 °C, above which derating is required. Terminals accept conductor sizes down to AWG 3, including 25 mm² flexible or 35 mm² rigid copper leads for low-impedance bonding and secure cabinet wiring. The enclosure carries a protection rating of IP 10, indicating finger-safe openings while relying on the cabinet for further environmental sealing.
During transient loading, the filter tolerates an overload of 1.5 × In, 1 min/h, allowing short bursts of elevated current without saturation of the choke elements. Internal losses amount to 20 W at rated load, heat that must be removed by natural convection inside the control cabinet. Insulation integrity is verified by dielectric tests of 2125 VDC for 2 s between lines and 2800 VDC for 2 s from line or neutral to protective earth. Ambient conditions range from −25 °C to +85 °C, covering typical storage and service conditions. With a mass of 3.1 kg, the component can be mounted directly on DIN rails or base plates without additional support hardware.
Frequently Asked Questions about NFD02.2-480-055:
Q: What is the maximum mains voltage the NFD02.2-480-055 mains filter supports?
A: The NFD02.2-480-055 mains filter can operate on up to 480 V AC with a possible 10% overvoltage.
Q: What is the rated mains current capacity of the NFD02.2-480-055 filter?
A: This mains filter can handle a rated mains current of 55 A for reliable power filtering.
Q: How many phases does the NFD02.2-480-055 mains filter support?
A: The unit is designed for use with three-phase electrical systems.
Q: What is the allowable ambient temperature range for the NFD02.2-480-055?
A: The NFD02.2-480-055 operates within a temperature range from -25 °C up to +85 °C.
Q: What protection rating does the NFD02.2-480-055 mains filter provide?
A: This model has a protection rating of IP 10, which means it offers basic protection against large solid objects.