Product Description:

The HNL01.1E-1000-N0012-A-500-NNNN is a mains choke used ahead of an inverter in an automation cabinet. It adds controlled inductance to the supply line so current peaks are reduced and harmonic distortion is lowered before power reaches the rectifier stage. This helps protect drive rectifiers, reduces nuisance trips of protective devices, and supports a steadier DC-bus voltage for motion controllers, servo amplifiers, and auxiliary control circuits in packaging, material-handling, and processing equipment. By smoothing line current, it also reduces stress on upstream supply components during repeated acceleration and deceleration cycles. This is especially useful in systems with frequent starts, stops, or changing load conditions.

The choke is produced by Bosch Rexroth Indramat and accepts a three-phase input of 3 x AC 380–500 V. It tolerates line variation of -15/+10%, allowing operation on utility feeds that fluctuate during heavy load cycles. Compatibility with 50/60 Hz networks allows the same unit to operate on common industrial supplies in different regions without any retapping. Its housing has an IP10 degree of protection, which helps prevent accidental contact with live parts while the surrounding enclosure provides additional shielding from dust and fluids. This arrangement suits panel installations where the cabinet, rather than the choke itself, provides the primary external barrier.

The unit is design version 1 and carries the internal series code 01, indicating the first engineering iteration of this hardware group. In system schematics, it is assigned to the Feeding line, which places the choke on the supply side rather than in the regenerative path. It belongs to the HNL Mains Chokes series, and its documented winding geometry keeps impedance aligned with the recommended drive filter tables for this rating. That placement keeps the inductance acting on incoming mains power before the connected inverter draws current from the grid.