Product Description:

Bosch Rexroth Indramat’s HNL05.1R-0040-N0471-N-A5-NNNN is a mains choke in the HNL Mains Chokes series. The component is placed on the incoming three-phase line of an inverter cabinet to raise source impedance and suppress harmonic content created by high-frequency switching. By limiting the rate of current change it protects both the utility feed and the drive’s rectifier during regenerative operation, enhancing electromagnetic compatibility and smoothing the DC bus in industrial automation systems.

Nominal inductance of 40 µH establishes the choke’s reactance at commonly used line frequencies and determines how effectively it filters differential currents. Its allowable load is defined by a nominal current of 471 A, so the device can be connected in cabinets that supply large multi-axis drives without saturating the core. The unit follows design version 1, indicating mechanical dimensions and mounting pattern shared across this revision. Internal copper and iron losses account for a continuous power dissipation of 430 W, which must be removed by forced-air cooling inside the panel. Because the supply system is classified as regenerative, the inductance moderates energy returned from servomotors and prevents over-voltage on the AC mains.

A degree of protection rated at IP00 means the choke requires installation inside a grounded enclosure because it offers no integral shielding against contact or dust. Handling and support structures must accommodate a mass of 40 kg, allowing vibration-free mounting on cabinet back-plates or frame rails. Thermal management is strictly convective, as the specification lists water dissipation of 0 W, so no liquid cooling interfaces are provided. Configuration is simplified because the additional options field is marked None, leaving only standard terminals for line and load conductors.