Dell PowerEdge XE2420 EMC Installation and Service Manual - Page 73

Assembling and connecting safety ground wire, Assembling DC input power wires, Input requirements

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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). Assembling and connecting safety ground wire Prerequisites NOTE: 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. Steps 1. Strip the insulation from the end of the green or yellow wire, exposing approximately 4.5 mm (0.175 inch) of copper wire. 2. Using a hand-crimping tool (Tyco Electronics, 58433-3 or equivalent), crimp the ring-tongue terminal (Jeeson Terminals Inc., R5-4SA or equivalent) to the green and yellow wire (safety ground wire). 3. Connect the safety ground wire to the grounding post on the back of the system by using a #6-32 nut equipped with a locking washer. Assembling DC input power wires Prerequisites NOTE: 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. Steps 1. Strip the insulation from the ends of the DC power wires, exposing approximately 13 mm (0.5 inch) of copper wire. NOTE: Reversing polarity when connecting DC power wires can permanently damage the power supply or the system. 2. Insert the copper ends into the mating connectors and tighten the captive screws at the top of the mating connector using a Phillips #2 screwdriver. Installing and removing system components 73

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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).
Assembling and connecting safety ground wire
Prerequisites
NOTE:
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.
Steps
1.
Strip the insulation from the end of the green or yellow wire, exposing approximately 4.5 mm (0.175 inch) of copper wire.
2.
Using a hand-crimping tool (Tyco Electronics, 58433-3 or equivalent), crimp the ring-tongue terminal (Jeeson Terminals Inc.,
R5-4SA or equivalent) to the green and yellow wire (safety ground wire).
3.
Connect the safety ground wire to the grounding post on the back of the system by using a #6-32 nut equipped with a
locking washer.
Assembling DC input power wires
Prerequisites
NOTE:
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.
Steps
1.
Strip the insulation from the ends of the DC power wires, exposing approximately 13 mm (0.5 inch) of copper wire.
NOTE:
Reversing polarity when connecting DC power wires can permanently damage the power supply or the system.
2.
Insert the copper ends into the mating connectors and tighten the captive screws at the top of the mating connector using
a Phillips #2 screwdriver.
Installing and removing system components
73