Product Description:

The HVR03.1-W045N belongs to the HVR Power Supply Units series produced by Bosch Rexroth Indramat. This regulated DC-bus source is intended to energize multiple drive controllers in coordinated motion systems, supplying the common intermediate circuit that links inverters and returns braking energy to the shared bus. By centralizing power conversion, the unit simplifies cabinet wiring and maintains consistent DC levels for synchronous and induction motor axes in industrial automation cells. Because the DC bus is shared, the supply can support coordinated motion profiles in which one axis accelerates while another axis is braking.

The supply accepts a three-phase input range of 3 x AC 380 V to 480 V (±10%), allowing installation on standard plant power systems without step-down transformers. Cooling is handled by internal air cooling with a built-in blower, so heat is removed by an integrated fan rather than external ducting. The integrated blower moves air across internal power components, which helps the supply remain stable during repeated high-load duty cycles. The unit is Design Version 1 in the 03 platform and uses compatible bus and control connectors for the matching system layout. It provides a regulated DC bus voltage, and closed-loop electronics keep the intermediate circuit within tolerance during load transients. Rated apparent power is 45 kW, giving adequate headroom for groups of medium-frame servo amplifiers that accelerate and decelerate at the same time on production machinery.

As an HVR Power Supply Unit, the module integrates mechanically with matching drive controllers through a shared mounting grid and DC bus bars. The unit uses release code 03, and its shared bus arrangement reduces the need for separate external DC wiring between the supply and the connected controllers. The design supports energy feedback so excess kinetic energy returns to the line rather than being dissipated in resistors. This layout suits cabinet-based drive assemblies where several modules operate from one centralized power section within a common enclosure.