Product Description:

The HNL05.1R-0050-N0652-N-A4-NNNN three-phase mains choke is produced by Bosch Rexroth Indramat within the HNL Mains Chokes series. The device is wired on the line side of regenerative supply modules, where its distributed inductance reduces di/dt, filters grid harmonics, and improves the displacement factor seen by upstream breakers. Because a choke inserts predictable impedance, it mitigates inrush currents and suppresses voltage spikes that could otherwise stress converter semiconductors in high-power automation cells.

At the core of those functions is a 50 µH nominal inductance that stores magnetic energy proportional to line current. The winding is rated for a 652 A nominal current, so the choke can partner with large multi-axis drives without reaching magnetic saturation. Input compatibility spans 3 × AC 380 V −15 % to 500 V +10 %, allowing the same component to be deployed on diverse plant utilities. A IP00 degree of protection means the windings and core are exposed and must be placed inside an enclosed cabinet with forced airflow. Installation weight is 70 kg, a figure that reflects the laminated steel core mass needed to achieve the specified inductance. This unit carries design version 1, includes no additional options, and supports regenerative power flow from the drive back to the supply.

Thermal limits cap continuous service: the choke may operate in ambient air up to 40 °C, where iron and copper losses are predicted to reach 560 W under full load. A normally-closed temperature contact opens at the 160 °C trigger point to signal the control system and prevent insulation damage; the same sensor reports 0 W dissipation when water cooling is not fitted. For auxiliary monitoring, the integral microswitch handles AC signaling up to 250 V with a 1 A switching capacity and can also switch 24 V dc in low-energy circuits. Together, these protective details complement the electrical parameters introduced above without repeating them.