Product Description:

The HVR02.1-W025N power module is produced by Bosch Rexroth Indramat and belongs to the HVR Power Supply Units series. This AC-fed component converts factory mains into a stabilized DC link for Indramat drive stacks used in automated machine tools, packaging lines, and material-handling systems. By integrating overload handling and protective monitoring, the module supplies energy to multiple servo axes while simplifying cabinet wiring. The HVR02.1-W025N supports dynamic regeneration, so kinetic energy from the drives is returned to the DC bus instead of being dissipated as heat. This helps reduce thermal load inside the control cabinet during deceleration.

Its thermal management relies on internal air cooling with a built-in blower, eliminating the need for external ducting and helping keep enclosure temperatures within operating limits. The unit accepts 3 × AC 380–480 V ±10% at the mains terminals, which allows operation where plant supply voltage varies. Internally, the rectifier and chopper circuits generate a regulated DC bus voltage, so downstream inverters receive a stable supply even when the input fluctuates. The maximum continuous deliverable power is 25 kW, which allows several medium-frame servo drives to be energized at the same time. The unit is Version 1 in the 02 hardware generation.

The module includes pre-engineered safety contactor interfaces, which can simplify installation and support coordination with emergency-stop loops. Integrated diagnostic outputs alert the controller if fan speed drops or if overtemperature threatens the DC link, helping protect the unit and connected amplifiers. Compatibility with a three-phase input network reduces phase imbalance in the facility and helps keep harmonic distortion lower during high-load cycles. These signals also make it easier for the control system to respond before a fault interrupts axis operation.