Dell PowerEdge T640 EMC PowerEdge T640 Installation and Service Manual - Page 86

System cover, Removing the system cover

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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. NOTE: Use alpha wire part number 3080 or equivalent (65/30 stranding). Required wires • One UL 10 AWG, 2 m maximum (stranded) black wire [-(48-60) V DC]. • One UL 10 AWG, 2 m maximum (stranded) red wire (V DC return). • One UL 10 AWG, 2 m maximum, green with a yellow stripe, stranded wire (safety ground). System cover Removing the system cover Prerequisites 1. Follow the safety guidelines listed in Safety instructions on page 65. 2. Turn off the system and all attached peripherals. 3. Disconnect the system from the electrical outlet and peripherals. 4. If installed, remove the front bezel. 5. Place the system on a flat, stable surface. Steps 1. Turn the latch release lock to the unlocked position. 2. Press the cover release latch and remove the system cover. 86 Installing and removing system components

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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.
NOTE:
Use alpha wire part number 3080 or equivalent (65/30 stranding).
Required wires
•
One UL 10 AWG, 2 m maximum (stranded) black wire [–(48–60) V DC].
•
One UL 10 AWG, 2 m maximum (stranded) red wire (V DC return).
•
One UL 10 AWG, 2 m maximum, green with a yellow stripe, stranded wire (safety ground).
System cover
Removing the system cover
Prerequisites
1.
Follow the safety guidelines listed in
Safety instructions
on page 65.
2.
Turn off the system and all attached peripherals.
3.
Disconnect the system from the electrical outlet and peripherals.
4.
If installed,
remove the front bezel
.
5.
Place the system on a flat, stable surface.
Steps
1.
Turn the latch release lock to the unlocked position.
2.
Press the cover release latch and remove the system cover.
86
Installing and removing system components