Product Description:

The HNL05.1R-0130-N0514-N-A4-NNNF is a three-phase mains choke manufactured by Bosch Rexroth Indramat within the HNL Mains Chokes series. Installed between the line supply and energy-return drive systems, the choke smooths current waveforms and limits harmonic content so the connected inverter can operate with reduced electromagnetic interference. In industrial automation panels, it is used with active front-end converters to protect semiconductor devices, improve power factor, and support grid-compatible operation. This type of line reactor also helps reduce current peaks that can stress upstream supply equipment during fast switching events.

Electrically, the choke has a nominal inductance of 130 µH, which adds impedance to high-frequency components on the supply line and helps smooth current draw. It can carry a continuous current of 514 A, matching the demands of high-power drive cabinets without magnetic saturation. During operation, its copper windings dissipate up to 1350 W as heat, so the assembly uses liquid cooling to move thermal energy away from the core and windings. Because the enclosure is rated IP00, the choke must be installed inside a cabinet that provides touch protection and shielding from dust and moisture. This arrangement is common in high-power drive systems where the choke, cooling hardware, and associated power electronics are mounted in a protected enclosure. Grid feedback is supported, allowing bidirectional energy flow during braking events.

This unit is intended for a regenerative supply system, so returned braking energy is fed back into the mains instead of being dissipated in braking resistors. The liquid circuit can remove up to 2400 W of heat, giving the thermal path enough capacity for continuous operation under sustained electrical load. The component is built as design 1 and is intended to work directly with the HMU05 power module. No additional options are fitted, so the choke remains focused on line smoothing and energy-return applications within a matched power system.