Product Description:

The HNL05.1R-0434-N0190-N-A5-NNNF is a mains choke produced by Bosch Rexroth Indramat for the HNL Mains Chokes series. Installed between a regenerative power unit and the plant supply, this component attenuates line-side current spikes and limits voltage transients so drive controllers receive a smoother supply waveform. In industrial automation lines, it reduces harmonic distortion, lowers electromagnetic interference, and helps protect downstream inverters from rapid current changes. This type of passive input reactor is commonly used in high-power drive cabinets where multiple axes share a common supply section.

The choke handles a nominal line current of 190 A, providing sufficient headroom for multi-axis cabinets drawing high power. Its inductance is rated at 434 µH, which helps filter high-frequency components before they reach the DC bus. To remove heat produced by copper losses, the design uses liquid cooling, and coolant flows through an internal jacket instead of relying on ambient air. Open-frame construction with an IP00 degree of protection means the unit must be mounted inside an enclosed panel, and guarded installation is necessary when the cabinet is open. Continuous internal dissipation reaches 1100 W, and a mass of 75 kg requires a rigid mounting surface that can withstand vibration from nearby equipment. The cooling loop must also be arranged to carry heat away continuously during sustained operation.

The unit is part of Version 1 of the platform. The Regenerative supply designation indicates use in systems that return energy to the line rather than in simple input stages. It is arranged as a straightforward line-side reactor without factory-installed voltage taps or integral temperature sensors. Its position in the supply path helps moderate input current behavior before power reaches the rest of the drive system.