Product Description:

The HNL01.1E-0085-N0315-N-690-NNNN is a three-phase line reactor produced by Bosch Rexroth Indramat within the HNL Mains Chokes series. Installed between the plant supply and an IndraDrive converter, it raises source impedance so harmonic current, diode commutation noise, and inrush peaks are reduced. Higher input impedance also reduces the sharp current pulses normally seen at rectifier front ends. By smoothing the current drawn by the drive, the reactor helps protect upstream breakers and transformers during repeated starts and rapid acceleration. A more even current profile can also reduce nuisance trips of protective devices during frequent acceleration and deceleration cycles.

Mechanical protection is limited to IP00, so the open-frame unit must be mounted inside a grounded control cabinet. Because the protection class is open, accidental contact protection must be provided by the cabinet structure and by proper spacing to adjacent live parts. The mains connection range is 3 × AC 380 V -15% to 3 × AC 690 V +10%, which allows use on a broad range of industrial three-phase supply systems. Within the product line, it belongs to series 01 and Version 1, so mounting dimensions and terminal spacing follow the first release pattern. The unit is assigned to the Feeding supply system, which means it is intended for the incoming line side of the converter rather than for DC-link or motor-output filtering.

The copper windings and laminated core are sized for continuous grid-frequency duty instead of variable-frequency inverter output. This arrangement keeps the choke on the utility side, where it can limit line disturbances before they reach the converter input bridge. It is not intended to shape the inverter output waveform sent to the motor. Cabinet layout should provide adequate cabinet airflow around the open assembly and use a suitable conductor cross section for the connected current.