Product Description:

The Bosch Rexroth Indramat HNL01.1R-0180-N0650-A-480-NNNF is a three-phase mains choke positioned on the line side of regenerative drive packages in the HNL Mains Chokes series. Acting as a line reactor, the device inserts inductance between the utility supply and an inverter. This helps smooth input current, reduce harmonic distortion, and protect power modules from steep voltage transients in industrial automation panels. In drive cabinets, it is placed ahead of the power electronics so the upstream supply sees a more controlled current profile during acceleration and regeneration.

The unit is built in Version 1 and has an IP10 enclosure rating, so it should be installed inside a control cabinet where additional shielding is provided. Its winding is rated for a mains connection of 3 × AC 400-480 V -15/+10 % and operates on 50/60 Hz power systems, which supports use on common industrial grids. It is part of Series 01, and its electrical characteristics are matched to compatible regenerative power supplies in the same product line. That arrangement helps the unit fit standard industrial installations where cabinet mounting is already used to protect power components from accidental contact and contamination.

The choke is intended for a regenerative supply system, so the magnetic core is suited to bidirectional energy flow during motor braking. Cooling is handled by natural convection, which allows installation without liquid lines or forced-air hardware at the choke itself. This is important in applications where axes return energy to the supply during deceleration, because the line reactor helps stabilize current flow as operating conditions change. It is therefore suited to active front-end converter arrangements that must manage both motoring and braking energy on the same supply connection. In operation, the added inductance also helps limit commutation stress at the converter input.