CAUTION: To ensure the UPS stops supplying power to the load during any mode of operation, the input power must be disconnected from the UPS when the emergency power-off function is activated.

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.”

REPO Connections

Wire Function

Terminal Wire Size Rating

Suggested Wire Size

 

 

 

 

REPO

L1

4–0.32 mm2 (12–22 AWG)

0.82 mm2 (18 AWG)

 

 

 

L2

 

 

 

 

 

 

 

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.

Remove Jumper if

installed

Figure 18. REPO Connector

To install the REPO switch:

1Verify that the UPS is off and unplugged.

2Remove the REPO connector from the accessory kit.

NOTE: Verify that there is no jumper installed in the REPO connector. If a jumper is installed, remove it before connecting to the REPO port.

3Connect the REPO connector to the REPO port labeled “IN” on the UPS rear panel.

4Optional. If you are daisy-chaining the REPO function with another UPS, you can shut down the entire system using a single switch.

Connect the second REPO connector to the REPO port labeled “OUT.”

26 Installation

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Dell H952N, K805N, J739N, K804N, 3750W, J730N, 4200W manual Repo Connections Wire Function, Repo Connector

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.

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