Product Description:

The HNL05.1R-0113-N0652-N-A4-NNNF is a mains choke manufactured by Bosch Rexroth Indramat for the HNL Mains Chokes series. Installed between the regenerative power supply and the drive group, this passive component smooths line-side current and limits high-frequency interference in industrial automation cabinets. Design version 1 is supplied without additional options, and it is intended for use with regenerative supply systems that return braking energy to the mains.

Electrical parameters center on an inductance of 113 µH, which sets the choke impedance at fundamental frequencies and influences the current ripple seen by connected inverters. The device carries a nominal line current of 652 A, so bus conductors and protective devices must be sized for that continuous load. For isolation functions, its integrated switches handle an AC voltage of 250 VAC and a DC control level of 24 VDC, and both paths have a switch capacity of 1 A. An open-frame construction with protection class IP00 requires installation inside a grounded enclosure with forced ventilation. Under airflow cooling, the iron core and windings dissipate heat to the surrounding air and help limit temperature rise during steady-state operation.

When water cooling is available, the internal circuit removes up to 2700 W, and the hydraulic layout keeps pressure drop low at the stated flow rate and filling volume. Thermal supervision is provided by an N/C temperature contact that trips at a winding temperature of 160 °C, while the ambient installation temperature must not exceed 40 °C. The laminated core and housing have a mass of 150 kg, which adds thermal stability and supports a rigid mounting arrangement. The cooling circuit and temperature monitoring help keep the choke within its normal operating range during continuous use.