Dell Metered Rack Power Distribution Unit User's Manual
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Brand: Dell
Category: Power distribution unit
Type: Operation & user’s manual for Dell Metered Rack Power Distribution Unit
Pages: 90 (1.09 Mb)
Download Dell Metered Rack Power Distribution Unit Operation & user’s manual
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Introduction
rPDU installed using deep mounting pegs on the side (90°)rPDU installed using standard mounting pegs on the back (180°)
Figure 3. Standard 180° and 90° rPDU Installation
Strain Relief Brackets
You can install optional strain relief brackets on any rPDU model. Models with dense receptacle configurations
on the front panel have mounting holes for side-mounted relief brackets only. Models with spacing between
outlet groupings have mounting holes for both side- and front-mounted relief brackets.
The strain relief bracket kits include three brackets and mounting hardware. The side-mounted brackets can be
installed on either side of the rPDU. The front-mounted strain relief brackets are adjustable.
Ground Bonding Point
The external ground bonding point located on the rPDU front panel may be used to bond other conductive
metal components in the rack enclosure to a ground reference point for signaling or other functional purposes.
This bonding point can also be used to bond the rPDU to a known earthed reference terminal in the building.
Per international regulatory requirements, the primary Safety Earth Bond connection is contained in the rPDU
as an integral part of the branch circuit cabling and plug.
Delta and Wye Configurations
The rPDUs are configured in either Delta or Wye topology.
S The Delta configuration uses a four-wire input connector plug with three phase wires, a protective earth
(ground) wire, and no neutral wire. This is commonly expressed as 3W + PE (Delta).
S The Wye configuration uses a five-wire input connector plug with three phase wires, a protective earth
(ground) wire, and a neutral wire. This is commonly expressed as 3W + N + PE (Wye).
Table 1 on page 11 lists the Delta or Wye configuration for each model.