Product Description:

The HVR03.2-W045N/S201 is a power supply unit in the HVR Power Supply Units series manufactured by Bosch Rexroth Indramat. In an automation cabinet, it takes three-phase utility power and supplies a stabilized common DC bus so several drive controllers can draw energy from one source instead of using separate rectifiers. This arrangement reduces cabinet wiring and supports regenerative energy reuse when decelerating axes return power to the shared link. Because the DC link is centralized, connected axes can exchange energy through the bus during different motion phases rather than relying only on the incoming line.

This model accepts a mains connection of 3 x AC 380 V to 480 V (±10%), which covers common industrial supply networks while allowing normal line variation. After rectification and smoothing, it provides a regulated DC bus voltage that keeps connected drive electronics supplied with stable potential when input conditions change. Stable bus conditions help the downstream inverters maintain predictable switching behavior as load demand changes across the system. The unit is rated for 45 kW of continuous output, so several attached inverters can share available bus power within the operating range of the supply. Thermal management uses internal air cooling, and a built-in air blower moves forced airflow through the housing to support continuous operation in an enclosed cabinet.

This power supply is identified as design version 2, which indicates a later revision in the product line rather than a change in its basic function. The internal electronics follow Series 03 control logic, so status handling and operating behavior remain consistent with other third-generation HVR units in the same platform. It also keeps system behavior more uniform when several matched HVR components operate together in the same cabinet. That consistency is useful in multi-axis systems where several connected drives depend on one DC source during acceleration, steady running, and braking.