Table 14. Battery

Configuration

3700W: (16) 12V, 7.2 Ah internal batteries; (16) 12V, 7.2 Ah EBM

 

4200W: (16) 12V, 7.2 Ah internal batteries; (16) 12V, 7.2 Ah EBM

 

 

Battery Type

CSB GP1272 7.2 Ah or YUASA NP7-12 7Ah

 

 

Voltage

3750W: 192 Vdc internal, 192 Vdc/30A EBM

 

4200W: 192 Vdc internal, 192 Vdc/30A EBM

 

 

Fuses

UPS: (1) 30A fuse

 

EBM: (1) 30A fuse

 

 

Type

Sealed, maintenance‐free, valve‐regulated, lead‐acid

 

 

Charging

Approximately 4 hours to 90% usable capacity at nominal line and no

 

supplementary power supply load

 

 

Monitoring

Advanced monitoring for earlier failure detection and warning

 

 

Battery Runtimes*

3750W internal batteries: 5 minutes at full load/21 minutes at half load

 

4200W internal batteries: 5 minutes at full load/16 minutes at half load

 

3750W with one EBM attached: 14 minutes at full load/43 minutes at half load

 

4200W with one EBM attached: 11 minutes at full load/35 minutes at half load

 

 

*Battery runtimes are approximate and vary depending on the load configuration and battery charge.

 

Bypass

 

 

Input

AC/DC

DC/AC

Output

Filter

Boost

Inverter

Filter

 

 

DC/DC

 

Charger

 

Battery

 

Figure 29. Online UPS Block Diagram

Specifications 65

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Image 65
Dell K804N, K805N, J739N, 3750W Battery Configuration, Battery Type, Voltage, Fuses, Charging, Monitoring, Battery Runtimes

H952N, K804N, J739N, K805N, J730N specifications

The Dell J730N, K805N, J739N, 4200W, and 3750W are all high-performance server power supplies designed to provide reliable power solutions for various Dell server models. These power supplies are engineered to ensure maximum uptime, energy efficiency, and seamless operation in data center environments.

Starting with the Dell J730N, this power supply unit is known for its robust design and 730W output capacity. It features hot-swappable functionality, allowing for easy replacement without powering down the server. This is crucial for mission-critical applications where downtime can lead to significant operational challenges. The J730N is compatible with various Dell servers, making it a versatile choice for data centers looking to enhance their power management.

The K805N power supply is another excellent option with a power output of 800W. It incorporates advanced features such as Automatic Voltage Regulation (AVR), which ensures that the output voltage remains stable even during fluctuations in the input voltage. This technology is vital for protecting sensitive server components from potential damage caused by power inconsistencies. Additionally, the K805N is designed with a modular approach, allowing for easy integration and scalability.

The Dell J739N exemplifies Dell’s commitment to energy efficiency with its 750W rating. It meets stringent efficiency standards, making it an environmentally friendly option that helps reduce power consumption and operational costs. The J739N is often used in combination with other Dell equipment to create a cohesive and efficient power management strategy. Its reliability is bolstered by a combination of intelligent internal monitoring systems that detect and address power anomalies.

The 4200W and 3750W power supplies represent higher capacity options for larger, more demanding server environments. These units are equipped with multiple redundant power circuits, ensuring that if one circuit fails, others will continue to supply power without interruption. The advanced cooling technologies utilized in these models also enhance performance and reliability by preventing overheating.

Overall, these Dell power supplies reflect the highest standards in design and technology. They are integral to maintaining the health and efficiency of server operations, contributing significantly to the resilience and effectiveness of data-centered environments. With a focus on compatibility, energy efficiency, and reliability, the J730N, K805N, J739N, 4200W, and 3750W power supplies remain essential components in modern IT infrastructures.