Product Description:

The HNL01.1E-0240-N0106-A-500-NPNN is a passive three-phase mains choke manufactured by Bosch Rexroth Indramat. Installed between the three-phase supply and an inverter, the component adds inductance that limits inrush current, attenuates harmonic content, and smooths line voltage. This helps protect drives and associated control electronics in industrial automation equipment during startup and normal operation. Because the unit is passive, it performs this filtering function without active switching elements or separate control circuitry of its own.

It carries an enclosure protection rating of IP10, so only large foreign objects are excluded and the windings remain open to ambient cooling air. The accepted line range is 3 × AC 380 to 500 V, and the choke operates at standard utility frequencies of 50/60 Hz, which covers most worldwide three-phase grids. The unit is Design Version 1, which indicates the first mechanical layout, terminal geometry, and insulation clearances used for this model. It is also classified as Series 01, and these electrical and mechanical characteristics influence voltage drop, copper loss, and permissible temperature rise during continuous filtering duty. Open airflow around the windings allows heat generated in the copper and core to dissipate naturally during sustained operation.

In operation, the choke is placed on the supply side in the Feeding position, so it experiences the full mains fault level and must tolerate grid disturbances. Because it sits ahead of the inverter, its inductance moderates line disturbances before they reach the input rectifier and DC bus section. The unit is delivered without extra taps, thermal switches, or terminal covers, which keeps the configuration straightforward for standard cabinet installation. It belongs to the HNL Mains Chokes series, where its thermal model and electromagnetic behavior are matched to associated line-side filtering components.