Product Description:

The HNL05.1R-0219-N0262-N-A4-NNNW mains choke is produced by Bosch Rexroth Indramat within the HNL Mains Chokes series. Installed on the line side of regenerative AC drive systems, this component adds inductive impedance that smooths current waveforms and limits switching spikes, protecting converters and motors from excessive electrical stress. By inserting controlled reactance in the supply circuit, it also reduces harmonic distortion and helps maintain a stable voltage window for downstream automation equipment.

This choke is designed for a continuous load current of 262 A, so it can be placed on high-power feeders without saturation. Its nominal inductance of 219 µH provides the energy storage needed to attenuate line-frequency ripple. The supply network may vary between a minimum of 380 V and a maximum of 500 V; within this span, the inductance maintains nearly constant impedance. Internal air cooling moves heat away from the copper windings, yet the unit still exhibits a calculated power loss of 2300 W, which must be removed by cabinet airflow. Because the choke handles regenerative, bidirectional power flow on an AC system, its core and conductor dimensions are sized to withstand cyclic magnetization without thermal runaway.

The open construction carries a protection rating of IP00, so it must be mounted inside an enclosure with appropriate touch-safe barriers. It connects to a three-line network, and the input phase count is specified as 3, matching standard industrial distribution panels. No energy is diverted to liquid circuits, as water heat dissipation is 0 W; all thermal management relies on forced air or natural convection. This device is delivered as design version 1 with no additional options configured. Used with a regenerative supply architecture, the choke contributes to controlled energy feedback while keeping conducted EMI within acceptable limits.