HVE04.2-W075N

HVE Power Supply Units

Rated 4.8 stars (13 total reviews)

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HVE04.2-W075N, Bosch Rexroth Indramat, HVE Power Supply Units. This compact HVE Power Supply Unit is engineered to deliver stable DC bus power for high-performance servo drives and motion controllers. With a modular Design Version of 2, it integrates seamlessly into standard drive racks and control cabinets. A front-mounted HI diagnostic display provides real-time feedback on operating status, fault codes, and energy flow, streamlining commissioning and maintenance.

The unit delivers a Rated Power of 75 kW and sustains a Continous DC Bus Power rating of 90 kW, supporting mains input frequencies from 50 to 60Hz. It conditions incoming line voltages from Nominal Voltage 380 to 480 V AC into a regulated DC bus Voltage range of 400 to 480 V. Overload protection is assured by a Maximum Fusing of 160A, while regenerative braking energy up to Maximum Regenerated Energy of 100 kW is returned to the bus for improved overall efficiency. A built-in blower provides Internal Air with Built-in Blower cooling within a permissible ambient range of 4 to 45°C, and the robust IP10 enclosure safeguards internal components from dust and debris. At just 20 Kg weight, the HVE04.2-W075N minimizes rack load and simplifies handling.

Designed for seamless integration with Bosch Rexroth Indramat servo drives, this power supply unit enables synchronized bus sharing and coordinated energy management across multi-axis systems. The combination of comprehensive diagnostics, regenerative capability, and industrial-grade protection ensures high reliability and reduced downtime in demanding production environments. Ideal for packaging machinery, material handling systems, and automated assembly lines, the HVE04.2-W075N delivers consistent performance and energy savings where they matter most.

Technical Specifications

Additional Design Feature
None

Basic Losses
175 W

Continuous Bleeder Power
2.5 kW

Control Supply Apparent Power
500 VA

Control Supply Output Power
300 W

Cooling Method
Internal Air with Built-in Blower

Design Version
2

Install Elevation (no Derating)
1000 m

Loss Per Kw Dc Bus
6 W/kW

Max Absolute Humidity
25 g/m³

Max Ambient Temp (derated)
55 °C

Max Regenerated Energy
250 kWs

Max Relative Humidity
95 %

Power Loss Max Continuous
625 W

Product Type
HVE Power Supply Unit

Protection Category
IP10

Rated Power
75 kW

Series
04

Weight
28 kg

Frequently Asked Questions

What are the implications of its continuous DC bus power of 90 kW vs. its rated 75 kW power?

The 90 kW continuous DC bus power means the unit can deliver up to that power under favorable input conditions (voltage, cooling, etc.), offering headroom above its 75 kW rated output, which helps in handling peaks without stressing the system. However, running continuously near the upper limit requires careful attention to cooling, thermal derating, and input voltage stability to avoid overheating or early component wear.

How does regenerative energy up to 100 kW affect system design?

Regenerative capacity lets the unit return braking or deceleration energy back into the DC bus or brake resistors, reducing wasted energy and potentially lowering cooling or resistor sizing needs. But the system must have compatible bus architecture, proper chokes, and consider safety for energy dissipation during faults.

What should be considered if paralleling two HVE04.2-W075N units to increase DC bus power?

When operating two units in master-slave mode, both must be identical in type (same version) and carefully synchronised in their control circuits and emergency stop wiring to avoid imbalance. Also, external balancing chokes, matching of units, and proper wiring resistance limits are necessary to avoid nett leakage or soft start errors.

How is fault and maintenance visibility improved via the “HI diagnostic display” front-panel?

The diagnostic display shows error and status codes, energy flow, and operating parameters, enabling quicker troubleshooting, real-time monitoring, and preventive maintenance by highlighting issues before failure. This reduces downtime in multi-axis or continuous operation settings by allowing technicians to pinpoint malfunctioning modules or conditions without full disassembly.

How does the unit behave under varying mains voltages (380 V vs 480 V)?

Its usable output (both continuous DC bus power and peak power) will vary: at higher mains voltage (e.g. 480 V) the system can deliver more without stressing AC input current or transformer losses; lower voltages may limit continuous output and require larger wiring or more cooling. It is designed for 3-phase AC in the 380-480 V range and requires checking the voltage tolerance band (±10%) per catalog.

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Internal Product Review

The Bosch Rexroth Indramat HVE04.2-W075N Power Supply Unit delivers stable DC bus power with a rated power of 75 kW and supports 380 to 480 V AC input. It is ideal for applications in packaging, material handling, and automated assembly systems, offering regenerative braking up to 100 kW. The unit features seamless integration with servo drives and efficient energy management, ensuring reliability and reduced downtime.