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Installing An AC Power Supply
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
1. Verify that both the power supplies are the same type and have the same maximum output power.
NOTE: The maximum output power (shown in Watts) is listed on the power supply label.
2. If applicable, remove the power supply blank.
3. Slide the new power supply into the chassis until the power supply is fully seated and the release latch snaps into
place.
NOTE: If you unlatched the cable management arm, re-latch it. For information about the cable management
arm, see the system’s rack documentation.
4. Connect the power cable to the power supply and plug the cable into a power outlet.
CAUTION: When connecting the power cable, secure the cable with the strap.
NOTE: When installing, hot-swapping, or hot-adding a new power supply, allow several seconds for the
system to recognize the power supply and determine its status. The power-supply status indicator turns green
to signify that the power supply is functioning properly.
Wiring Instructions For A DC Power Supply
Your system supports up to two –(48–60) V DC power supplies (when available).
WARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician must perform all connections
to DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself. All
electrical wiring must comply with applicable local or national codes and practices. Damage due to servicing that
is not authorized by Dell is not covered by your warranty. Read and follow all safety instructions that came with the
product.
CAUTION: Wire the unit with copper only, unless otherwise specified, use only 10 American Wire Gauge (AWG)
wire rated minimum 90 ºC for source and return. Protect the –(48–60) V DC (1 wire) with a branch circuit over-
current protection rated 50 A for DC with a high interrupt current rating.
NOTE: A readily accessible disconnect device that is suitably approved and rated shall be incorporated in the field
wiring.
Input Requirements
• Supply voltage: –(48–60) V DC
• Current consumption: 32 A (maximum)
Kit Contents
• Dell part number 6RYJ9 terminal block or equivalent (1)
• #6-32 nut equipped with lock washer (1)
Required Tools
Wire-stripper pliers capable of removing insulation from size 10 AWG solid or stranded, insulated copper wire
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