HNL01.2E-0400-N0051-A-480-NNNN

The Bosch Rexroth Indramat HNL01.2E-0400-N0051-A-480-NNNN from the HNL Mains Chokes series delivers robust performance with a rated current of 51 A and a mains connection voltage of 3 x 400-480 VAC (-15/+10%). Designed for seamless integration with rectifiers and converters, it features a Supply System: Rectifier topology and three discrete 400 µH inductors to stabilize the DC bus. The choke operates at an operating frequency of 50/60 Hz and incorporates a Protection Type IP10 enclosure for basic dust protection. Additional configuration flexibility is provided with no extra Additional Option required.

Built to mitigate line disturbances, this mains choke reduces harmonics in the line current and prevents voltage dips due to commutation transients. A built-in temperature contact (Type 1) enables real-time thermal monitoring, while the unit’s 13.5 kg mass ensures mechanical stability under high current pulses. Ground terminals U1, V1 and W1 are secured with M6 screws, and the design allows mounting in any orientation without performance loss. Its low temperature rise under load preserves semiconductor life and supports regenerative supply operation.

Installation and service must be performed by trained personnel only, and all connections or removals should occur after verifying that the power supply is disconnected. Single-conductor wiring without additional shielding is permitted to simplify field assembly. Bosch Rexroth Indramat backs each unit with comprehensive documentation to ensure correct operation and worldwide shipping to any address.