R911190002 (HVE04.2-W075N)

HVE Power Supply Units

Rated 4.8 stars (13 total reviews)

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The Bosch Rexroth HVE04.2-W075N (MPN: R911190002) is a power supply unit designed to deliver uncontrolled DC bus voltage to multiple drive controllers within automation systems. It features an integrated contactor for power cut-off, and supports three-phase systems with grounded neutral points, operating at a nominal voltage of 380 to 480V and a frequency range of 50 to 60Hz. The unit has a rated power of 75 kW, continuous DC bus power of 90 kW, and can accommodate additional capacitance modules on the DC bus for energy storage. The unit measures 250 mm in width, weighs 20 kg, and utilizes internal air cooling via a built-in blower. Maximum fusing is 160A, permissible ambient temperature is 4 to 45°C, and protection category is IP10. Diagnostic status is available via a HI display, and the unit supports a relative humidity up to 95%.

Technical Specifications

Product Name
HVE04.2-W075 power supply unit

Integrated Contactor
Yes

Size Type
Compact

Power Scope
Dependent on power voltage

Relative Humidity
Up to 95%

Energy Storage
144W per mF at 3 x 400VAC

DC Bus Add-Ons
Supports up to 3 additional capacitance modules

Installation Requirement
Control cabinet with proper air circulation

Width
250mm

Continuous DC Bus Power
90kW

Peak DC Bus Power
270kW for 0.3 seconds

Maximum Fusing
160A for mains power section

System Compatibility
Three-phase systems with grounded neutral points

Shipping
Worldwide via reliable logistics partners

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.

Common Misspellings

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.