REXROTH HVR03.2-W045N | Servo Drive DC Bus Supply

1. REXROTH HVR03.2-W045N | Servo Drive DC Bus Supply

Unboxing & Physical Snapshot

• Brand & Model: Bosch Rexroth Indramat HVR03.2-W045N
• Product Family: Rexroth Indramat HVR Power Supply Units
• Product Type: Three-phase power supply unit for servo drive systems. The HVR03.2-W045N provides regulated DC bus voltage for connected drive controllers in industrial motion applications.
• Primary Application: CNC machinery, machine tools, robotics, transfer systems, and industrial automation equipment requiring centralized servo power distribution.
• Physical Dimensions (Approximate W × H × D):
  • Approximately 260 × 500 × 300 mm
  • Vertical cabinet-mounted power module design.
• Estimated Shipping Weight: Approximately 24 kg.
• What’s in the Box:
  • Rexroth HVR03.2-W045N power supply unit
  • Front panel identification label
  • Power connection terminals
  • DC bus connection interfaces
  • Cooling fan assembly
  • Protective packaging for transport

Product Introduction

Structure B — Architecture Hook

The Rexroth HVR03.2-W045N operates as the central power conversion stage in an Indramat servo drive architecture. Installed vertically inside the electrical cabinet, it converts three-phase AC input power into a regulated DC bus supply used by connected servo amplifiers and drive controllers.

This unit is not a standalone motor controller. It supports a complete motion system where compatibility between the power supply, drive modules, and motor configuration must be verified before installation. Check the DC bus connections. Confirm the mains rating, grounding arrangement, and cooling path before energizing (—which is critical for high-power CNC and automation equipment where incorrect wiring can damage multiple drive components).

Core Technical Specifications

REXROTH HVR03.2-W045N

The .2- supplies a shared DC bus rather than directly controlling a motor. System design must account for connected drive modules, regenerative energy handling, cabinet ventilation, and protective devices.

? Global Compliance & Industry Certifications

Expected compliance considerations for the Rexroth .2- include:

• CE Mark — applicable for compliant machine installations within European markets.
• UL/cUL Recognition — may apply when installed as part of an approved industrial control cabinet.
• RoHS Compliance — depends on manufacturing revision and regional requirements.
• ATEX/IECEx — not a standalone hazardous-area certified power supply.
• Marine Approvals (DNV GL) — only applicable when integrated into approved marine automation equipment.

For high-voltage servo power equipment, certification helps demonstrate that electrical clearances, insulation systems, and protective design requirements have been evaluated.

Verify specific lot certifications with OEM.

? Long-Term Storage & Asset Preservation Guide

Store the .2- in a dry indoor environment with the original protective packaging installed. Keep dust away from ventilation openings and power terminals.

Maintain warehouse humidity below 60% RH. Long-term moisture exposure may affect bus capacitors, terminal surfaces, and internal insulation materials.

Before installation:

• Inspect DC bus terminals and power connectors for oxidation.
• Check cooling fan movement and ventilation channels.
• Review capacitor condition if the unit has been stored for multiple years.
• Perform controlled power-up procedures when required to reform electrolytic capacitors.
• Verify the nameplate data matches the machine documentation.

Avoid storing heavy drive modules directly on concrete floors due to moisture migration risk.

Physical Installation Prerequisites

• Install vertically inside a suitable electrical cabinet.
• Provide sufficient airflow for the internal blower system.
• Maintain approximately 300 mm clearance where required for installation and ventilation access.
• Connect protective earth before applying mains voltage.
• Verify incoming AC voltage matches the nameplate rating.
• Check DC bus polarity before connecting drive modules.
• Use correctly rated cables and terminal hardware.
• Ensure cabinet ventilation can remove generated heat.

The .2- should not be installed in uncontrolled environments with conductive dust, condensation, or insufficient cooling.

Buyer’s FAQ (Logistics & Compliance Focus)

Q1. What HS Tariff Code is commonly used for the Rexroth .2-?

A: The final Harmonized System classification depends on customs interpretation and the declared function of the equipment. Servo drive power supply units are generally evaluated under electrical power conversion or industrial control equipment categories. Confirm the final HS code with your customs broker.

Q2. Does Country of Origin affect .2- import documentation?

A: Yes. COO information affects customs clearance, duty assessment, and industrial asset records. Keep the OEM label, commercial invoice, packing list, and receiving inspection documents together.

Q3. Is shipping insurance recommended for this power supply unit?

A: Recommended. The .2- contains heavy power electronics, capacitors, and cooling components. Shock or moisture damage during transport may not be visible externally.

Q4. Does the .2- include the latest firmware pre-loaded?

A: This unit is primarily a power supply module and does not function like a programmable controller. Firmware availability depends on the exact hardware revision. Verify compatibility with the connected Rexroth drive system before installation.