Installing An Ac Power Supply; Wiring Instructions For A Dc Power Supply - Dell EMC PowerEdge R620 Owner's Manual

3 release latch

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 are shipped with your 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 supply units (PSUs), 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.
CAUTION: Connect the equipment to a –(48–60) V DC supply source that is electrically isolated from the AC source (reliably
grounded –(48–60) V DC SELV source). Ensure that the –(48–60) V DC source is efficiently secured to earth (ground).
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)
74 Installing and removing system components
4 power supply handle