Product Description:

The HLL01.1N-10M0-S0100-A-007-05A0-NNNN is a line-side bus choke produced by Bosch Rexroth Indramat within the HLL Bus Chokes series. Installed between the mains supply and the DC bus of an Indramat inverter package, the device raises circuit inductance to limit inrush current and smooth voltage ripple during industrial automation duty. It is typically placed ahead of the inverter input stage, where added inductance helps moderate charging current when the DC bus capacitors are energized. By increasing line-side impedance, the choke also smooths current draw and reduces electrical stress on the upstream rectifier during normal operation.

This choke carries a nominal current of 100 A, so its copper and core dimensions are sized for continuous drive trains that draw that RMS value. The coil presents a nominal inductance of 10 mH, and this reactance attenuates high-frequency harmonics generated by the switching stage before they reflect back toward the supply. At full load the winding releases up to 300 W of heat, and the open-frame housing with an IP20 rating relies on cabinet airflow to remove that loss rather than using an enclosed body. Short dynamic events can reach a peak of 250 A without saturating the magnetic steel, providing operating margin during regenerative braking surges and other brief load changes. The operating temperature window spans 0 °C to 40 °C, and the unit can be mounted horizontally or vertically on a flat plate.

The laminated core weighs 35 kg, so adequate mechanical support must be provided when the unit is installed in a cabinet. Power leads with a cross-section of 50 mm² fit the clamping blocks without additional adapters, keeping conductor heating within acceptable limits during sustained current flow. Installation clearance of 80 mm is required on every side to preserve convection paths, reduce magnetic interaction with adjacent gear, and leave enough space for secure cable routing.