DC POWER SUPPLY FOR DATA CENTERS
Ideal for Optical communication, Router, and Server power supplies
Reduce Data Center Operating Costs with Efficient Power Management
Converting communication equipment—such as routers, servers, storage, and PBXs—from AC to DC power significantly reduces power loss and heat generation. This transition can lower operating costs by up to 20%. Furthermore, the simplified circuit design enhances system reliability and allows for direct battery backup in the event of a power failure. The Rnet series offers a compact, ultra-slim profile ideal for high-density rack integration, maximizing space for telecommunications equipment.
The Rnet series is a high-efficiency AC-DC power supply designed specifically for data centers. It supports the transition to DC power distribution, offering reduced energy loss and simplified circuitry. The lineup includes 380 Vdc output models compatible with High-Voltage Direct Current (HVDC) power supply systems.
All the models feature highly reliable and ultra-thin, through our leading expertise in high-power DC power supplies. In addition to low running costs due to high efficiency, the power supply's ultra-slim profile makes it easy to store telecommunications equipment and greatly contributes to improving the profitability of system providers.
FEATURES
- HVDC Ready: 380 Vdc output models support next-generation High-Voltage Direct Current power systems for servers and routers.
- High Power Factor: 0.99 power factor allows for downsizing of power transmission facilities and reduced costs.
- High Efficiency: Reduces energy consumption and operating costs.
- Low Heat Generation: Minimizes air conditioning requirements.
- Compact Design: Low-profile form factor maximizes rack space for communication equipment.
- High Reliability: Simplified circuit design and support for parallel redundant operation significantly improve system reliability compared to conventional AC UPS systems.
- Comprehensive Protection: Equipped with overvoltage, overtemperature, overload, and AC input failure protections.
- System Integration: Includes error alarms and status signals.
- Rack Compatibility: Supports 19-inch EIA/JIS racks (23-inch mount optional).
Models
| Model | Output voltage [V] |
Output current [Amax] |
Output power [kW] |
Ripple [mVrms] |
|---|---|---|---|---|
| Rnet48-6 | 48 V ±1% fixed | 6 A | 0.29 kW | 20 mV |
| Rnet48-15 | 15 A | 0.75 kW | ||
| Rnet48-25 | 25 A | 1.2 kW | ||
| Rnet48-42 | 42 A | 2 kW | ||
| Rnet48-63 | 63 A | 3 kW | ||
| Rnet48-250 | 250 A | 12 kW | ||
| Rnet380-1 | 380 V ±1% fixed | 1 A | 0.38 kW | 50 mV |
| Rnet380-2 | 2 A | 0.76 kW | ||
| Rnet380-3 | 3 A | 1.14 kW | ||
| Rnet380-5 | 5 A | 1.9 kW | ||
| Rnet380-8 | 8 A | 3.04 kW | ||
| Rnet380-30 | 30 A | 11.4 kW | 200 mV | |
| RnetK48-33 | 48 V ±1% fixed | 33 A | 1.6 kW | 20 mV |
| RnetK48-60 | 60 A | 2.9 kW | 30 mV | |
| Rnet2K48-52 | 52 A | 2.5 kW |
- Discontinued Products
-
Sales of the following models ended in March 2025. We continue to support the products.
Model Output voltage
[V]Output current
[Amax]Output power
[kW]Ripple
[mVrms]RnetK54.6-30 54.6 V ±1% fixed 30 A 1.6 kW 20 mV RnetK380-4.2 380 V ±1% fixed 4.2 A 1.6 kW 90 mV Rnet2K48-60 48 V ±1% fixed 60 A 2.9 kW 30 mV Rnet2K48-100 100 A 4.8 kW
Specifications
RnetK/2K: AC to 48 Vdc converter models
- Input voltage
-
85 to 264 Vac, 50/60 Hz, Single-phase
180 to 264 Vac, 50/60 Hz, Single-phase
Rnet380: AC to 380 Vdc converter models
- Input voltage
-
90 to 110 Vac, 50/60 Hz, Single-phase
180 to 220 Vac, 50/60 Hz, Single-phase
180 to 220 Vac, 50/60 Hz, Three-phase
110 Vac ±10%, 50/60 Hz, Single-phase (Option)
220 Vac ±10%, 50/60 Hz, Single-phase (Option)
240 Vac ±10%, 50/60 Hz, Single-phase (Option)
Rnet48: AC to 48 Vdc converter models
- Input voltage
-
90 to 110 Vac, 50/60 Hz, Single-phase
180 to 220 Vac, 50/60 Hz, Single-phase
180 to 220 Vac, 50/60 Hz, Three-phase
110 Vac ±10%, 50/60 Hz, Single-phase (Option)
220 Vac ±10%, 50/60 Hz, Single-phase (Option)
240 Vac ±10%, 50/60 Hz, Single-phase (Option)
Options
- -LEt
-
LAN interface
- -L(110V)
-
110 Vac ±10% input
Only for models compatible with 100 V system.
Input current is approx 90% of typ. value.
- -L(220V)
-
220 Vac ±10% input
Only for models compatible with 200 V system
Input current is approx 90% of typ. value.
- -L(240V)
-
240 Vac ±10% input
Only for models compatible with 200 V system.
Input current is approx 87% of typ. value.
ADDITIONAL ACCESSORY
- 23-inch rack mount shelf [inch (mm)]
-
RME23-44H-PR
[EIA standards] H:1.73(44) P:1.25(31.8)
* P = Pitch of front mounting holes All mounting holes are Ø0.24(6) × 0.39(10) long hole
- 19-inch Rack Cabinet
-
Rnet series Fits Perfectly
- For 19-inch rack storage.
- The height and depth can be freely designed.
- The frame is made of aluminum and is beautiful.
- The frame can be disassembled with a hex wrench.
- It can also be used for 23-inch.
Dimensions
Tech Notes
Advantages of DC Power
"There are three major advantages to DC power."
High Reliability
AC power systems require the control of four elements: voltage, frequency, phase, and waveform. In contrast, DC power systems only require voltage control. This simplified structure reduces the risk of component failure. Additionally, DC systems facilitate direct connection to backup batteries, ensuring continuous operation during power outages.
Lower Operating Costs
DC power distribution eliminates unnecessary conversion stages, resulting in higher efficiency and reduced power loss. Lower heat generation also decreases the load on air conditioning systems, further cutting operational expenses.
Environmental Sustainability
High efficiency and reduced cooling requirements directly contribute to lower energy consumption and reduced carbon dioxide emissions.
Advantages of space saving
The DC power supply eliminates the need for the power conversion unit of a conventionally used UPS and reduces the installation space.
Compared to AC-powered systems of the same capacity, it takes up only about half the space, allowing more routers and servers to be installed in the available space.
ABOUT STATUS
- Statuses include OUTPUT and FAULT (FLT1 and FLT2).
- When the power supply is producing normal output voltage, the OUTPUT mode is shorted and the others are open.
- If FAULT is reached, the output is stopped.
- Each is an open collector output with a common common and floating common. Withstand voltage: 30 Vdc sink current: 5 mA max.
- Other troubles (over-temperature, over-voltage, or low AC) will cause FLT2 to short-circuit.
- Front panel FAULT lamp illuminates in the event of overcurrent, overtemperature, overvoltage, or low AC.
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-
Rnet series Datasheet
Date: 2025-11-12 Rev 05
PDF (3,305 KB)
-
DC POWER SUPPLIES SELECTION GUIDE
Date: 2025-06-27 rev.02
PDF (5,265 KB)
-
How to Use DC Power Supplies
Date: 2025-11-11 rev 09
PDF (1,281 KB)
Login Required
-
Rnet series Datasheet
Date: 2025-11-12 Rev 05
PDF (3,305 KB)
-
DC POWER SUPPLIES SELECTION GUIDE
Date: 2025-06-27 rev.02
PDF (5,265 KB)
-
How to Use DC Power Supplies
Date: 2025-11-11 rev 09
PDF (1,281 KB)
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