Product Description:

The HNL01.1E-0100-N0202-A-480-NNNN is a three-phase mains choke produced by Bosch Rexroth Indramat. It is installed ahead of servo drives or frequency converters, where it adds inductance to the incoming supply line and helps smooth the electrical conditions seen by the power stage. In industrial automation, this reduces harmonic distortion, lowers differential ripple current, and helps protect sensitive power electronics from short-duration voltage spikes on the facility network. That makes it suitable for drive systems that share plant power with other switching equipment and are exposed to normal supply disturbances.

In operation, the choke accepts a mains connection voltage of 3 x AC 400–480 V on networks running at 50/60 Hz. Its permitted input variation is −15% to +10%, allowing normal utility fluctuation without pushing the component outside its intended operating range. Because it is installed on the line side, its supply system classification is Feeding, which means it conditions incoming power before it reaches the drive. The enclosure is rated IP10, so the open design requires cabinet mounting. Bosch Rexroth lists the unit as version 1, which indicates the first design release and keeps dimensional references consistent within that design stage.

Within the product range, the choke belongs to the HNL Mains Chokes series and carries the series code 01. This line reactor improves electromagnetic compatibility by raising source impedance and damping steep voltage fronts that could stress rectifier diodes and related power components. It has no integrated extra windings, sensors, or filters, so wiring remains limited to the required line and protective earth connections. Without added internal options, the component remains focused on line conditioning rather than control or feedback tasks.