Product Description:

The HNL01.1E-0032-N0760-N-690-NNNN is a three-phase mains choke manufactured by Bosch Rexroth Indramat and supplied within the HNL Mains Chokes series. This passive line component is installed between the power grid and a converter to raise the network inductance, which reduces harmonic distortion and limits inrush current in automated production cells. By smoothing the current drawn from the mains, it helps the upstream supply see a less abrupt load when the connected converter is energized or operating under changing demand. This can help reduce stress on rectifier sections and other line-side components during startup and normal operation.

The unit is design version 1. It has a protection rating of IP00, so it must be installed inside an enclosure that provides airflow and prevents accidental contact with live parts. The allowable mains range starts at 3 x AC 380 V -15% and extends to 3 x AC 690 V +10%, which supports use on a wide range of industrial three-phase supplies. The choke is intended for a feeding supply system, so it is used on the incoming line side of the DC bus converter rather than in a regenerative path. This placement supports line conditioning before power reaches the converter input stage.

It carries the internal series code 01. Electrical connections are made through the provided terminals, and the unit is mounted on the supplied steel base plate. Its open layout allows heat to dissipate into the cabinet airflow without external cooling ducts, and the enclosure is responsible for touch protection. The open construction also leaves the winding and core surfaces directly exposed to the cabinet air path, which supports thermal release during continuous duty. Installation is therefore centered on secure line wiring, stable mounting, and adequate ventilation around the magnetic core.