Product Description:

The HNL05.1R-0043-N0514-N-A4-NNNN is a mains choke produced by Bosch Rexroth Indramat within the HNL Mains Chokes series. It is design version 1 and is built for regenerative three-phase supply systems where line reactors limit current peaks and attenuate harmonic distortion before energy is returned to the grid. This component is installed ahead of an inverter or drive controller to improve power quality and protect semiconductors from steep voltage gradients. In regenerative drive systems, this placement helps stabilize the line path before recovered energy reaches upstream distribution equipment. No additional options are fitted, so the unit delivers its rated performance without add-on filters or cooling modules.

The choke is rated for a continuous long-term load current of 514 A, allowing it to operate in high-power cabinets that handle substantial regenerative flows. Its nominal inductance is 43 µH, which helps smooth line current and reduce di/dt during load changes. The supply network can range from 3 x AC 380 V -15% to 500 V +10%, and operation is limited to three input phases to match standard industrial mains. Internal copper and core losses total 400 W at rated load, and no water dissipation is required because the choke is air-cooled by natural convection. The enclosure carries a protection degree of IP00, so it must be mounted inside a guarded cabinet where accidental contact and foreign objects are prevented.

The assembly weighs 50 kg, which should be considered for lifting and bracket design. Its overall height is 329 mm, the width is 403 mm, and the depth is 227 mm. This rectangular footprint helps allocate adequate clearance for airflow around the laminated core. The proportions also leave room for cable bends and nearby drive placement in densely packed regenerative cabinets.