Dell 4200W, 3750W, 10KW, 5600W Electrical Wiring, Basic Installation Schematics

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The REPO feature shuts down the protected equipment immediately and does not follow the orderly shutdown procedure initiated by any power management software. Any devices that are operating on battery power are also shut down immediately. When the REPO switch is reset, the equipment will not return to utility or battery power until the UPS is manually restarted.

There are two REPO ports on each UPS in order to support cascaded REPO functionality. This allows a single cable to be cascaded between multiple Dell UPS, eliminating the need for a dedicated REPO cable for each UPS & simplifying installation. The REPO contacts are normally open.

Wire Function

Terminal Wire Size Rating

Suggested Wire Size

 

 

 

Remote Emergency Power Off (REPO)

4-0.32mm2(12-22 AWG)

0.82mm2 (18 AWG)

 

 

 

WARNING: The REPO circuit is an IEC 60950 safety extra low voltage (SELV) circuit. This circuit must be separated from any

hazardous voltage circuits by reinforced insulation. CAUTION: The REPO must not be connected to any utility connected circuits. Reinforced insulation to the utility is required. The REPO switch must have a minimum rating of 24Vdc and 20 mA and be a dedicated latching-type switch not tied into any other circuit. The REPO signal must remain active for at least 250ms for proper operation. NOTE: For Europe, the emergency switch requirements are detailed in Harmonized document HD-384-48 S1, “Electrical Installation of the Buildings, Part 4: Protection for Safety, Chapter 46: Isolation and Switching.” NOTE: The pins must be open to keep the UPS running. If the UPS shuts down because the REPO connector pins are shorted, restart the UPS by re- opening the REPO connector pins and turning on the UPS manually. Maximum resistance in the shorted loop is 10 ohm. NOTE: Always test the REPO function before applying your critical load to avoid accidental load loss.

Electrical Wiring, Basic Installation Schematics

Basic Installation Schematic of Dell UPS using optional 32 Amp, non-locking, power input cord.

Suitable for all models except 5600W Online and 10kW

Dell UPS Site Preparation Guide, EMEA (230V)

Revision 2, December 2012

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Contents Environmental Requirements for the Dell UPS Site PreparationElectrical Preparation Physical Requirements for the Dell UPSRack Requirements for the Dell UPS Optional accessories for Dell UPSRack Preparation Electrical PreparationWire Function Terminal Wire Size Rating Suggested Wire Size Electrical Wiring, Basic Installation SchematicsElectrical input location of Dell UPS Overcurrent Protection Devices All Dell UPS Rack Mount Models except 5600W Online and 10kW5600W Online and 10kW UPS Manufacturer Type Rating Optional 32 Amp, non-locking, 1phase, 3m, UPS Input Cord KitReceiving the Dell UPS Inspecting the EquipmentUnpacking the Dell UPS Installing the Dell UPS into the rack
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4200W, 3750W, 5600W, 10KW 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.