Product Description:

The HNL05.1R-0649-N0127-N-A5-NNNF is a mains choke manufactured by Bosch Rexroth Indramat and supplied within the HNL Mains Chokes series. In a regenerative drive system it is wired between the converter and the facility mains to smooth current peaks and limit conducted interference, protecting both the supply network and connected inverters from high-frequency harmonics. By adding inductance to the AC side of the installation, the choke stabilizes the voltage profile during motoring and regeneration cycles common in automated production equipment.

The choke can carry a continuous line current of 127 A, so it is suited for medium-power multi-axis cabinets that draw steady high currents. Its liquid circuit, specified as Liquid Cooling, transports heat away from the windings and keeps copper temperatures within limits even under full load. With a protection rating of IP00, the unit must be mounted inside a closed control enclosure where touch-safe barriers are present. The magnetic core presents a nominal inductance of 649 µH; this value sets the choke’s impedance at line frequency and directly defines its capability to attenuate ripple. Joule losses produced by copper resistance and core hysteresis amount to 1000 W at rated conditions, and the cooling loop is dimensioned to remove that heat to the plant water supply.

Hardware identification lists Design Version 1, indicating first-generation mechanical dimensions and terminal spacing used across the series. The supply topology is marked as Regenerative, meaning the choke is sized for bidirectional energy flow during braking events. Shipping mass is 50 kg, a factor that influences panel reinforcement and handling fixtures during installation. Within the broader HNL Mains Chokes family, this model occupies the upper tier for current rating while maintaining standardized mounting footprints, allowing engineers to interchange units without changing cabinet layouts.