HNF05.1A-500N-R0400-N-A5-NNNN Bosch Rexroth Indramat
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MPN: R911377933
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The Bosch Rexroth Indramat HNF05.1A-500N-R0400-N-A5-NNNN is part of the HNF Mains Filters series and supports a nominal voltage of 690/400 V with an input frequency of 50/60 Hz. This version is rated for 400 Amps current and offers a degree of protection at IP00, with a power dissipation of 53 W. The filter is designed for regenerative devices and meets EMC Category C3 standards according to DIN EN 61800-3.
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Product Description:
The HNF05.1A-500N-R0400-N-A5-NNNN mains filter is produced by Bosch Rexroth Indramat for the HNF Mains Filters series. This passive three-phase line component is mounted ahead of regenerative inverters so that harmonic currents and high-frequency noise are suppressed before they reach the utility feed. By keeping conducted emissions inside the cabinet, the filter helps neighboring automation equipment meet electromagnetic compatibility limits and lets drives return braking energy to the grid without disturbance.
Its copper busbars are sized for a continuous line load of 400 A, allowing the filter to serve multi-axis drive groups on a shared mains connection. The device accepts three-phase supplies from 380–690 V, matching common plant distribution levels, and maintains consistent attenuation on either delta or wye secondaries. It operates on 50/60 Hz utility grids, so the same hardware can be used in different regions. With a winding resistance of 67 µΩ, the voltage drop stays low while still providing the impedance needed for interference suppression. Design version 1 places the terminals on the front face for straightforward cabinet wiring, and the unit is intended only for regenerative devices to match its thermal profile to braking energy.
The housing carries a degree of protection of IP00, indicating that it must be mounted inside an enclosed panel where no accidental contact or moisture ingress can occur. Under full electrical loading, the core generates 53 W of heat, so standard forced-air cabinet cooling is usually sufficient. Line-to-ground leakage is limited to less than 905 mA, a figure that informs residual-current monitoring and touch-current calculations. The filter’s differential-mode performance falls into electromagnetic compatibility category C3 in accordance with DIN EN 61800-3, meaning it is intended for industrial areas supplied directly from the transformer. When the upstream system provides a nominal line of 690/400 V, the component smooths returning regenerative energy without compromising network quality.
