Dell EMC PowerMax Series Site Planning Manual page 59

Figure 25. PowerMax 8000: Minimum requirements for third-party racks with inward-facing PDUs
Key Description
A Minimum depth of the rack. Total value of B+J+G+K+L in the diagram.
B Distance between front surface of the rack post and the NEMA rail.
C Distance between the NEMA rails.
D Distance between the rear NEMA rails to the exterior, rear surface of the rack.
E NEMA rail spacing.
F Minimum width of the rack. Total value of E+H+H+M in the diagram.
Because the AC cable bend radius (M) includes a portion of the equipment
enclosure area, only half the distance of (M) on each side of the rack is required to
determine the minimum width of the rack. The equation can be thought of as E+H
+H+½M+½M.
G Distance between the rear-facing surface of the PDU and the surface of the rack
post. This space must be large enough to house power cables and route customer
host cables.
H PDU depth from rack sidewall.
I If a front door exists, this is the distance between the back surface of the door and
the front surface of the vertical NEMA rail. Space is required to provide clearing for
bezel airflow.
J Space required for enclosures, rails, and cable management arms.
K PDU width.
L Distance from the equipment enclosure area to the front-facing side of the PDU.
M AC cable bend radius. The bend radius is expected to encroach into the equipment
enclosure area.
Minimum distance (in / cm)
24 / 61
20 / 50.8
19 / 48.3
3 / 7.7
2.5 / 6.4
41 / 104.2
0.1 / 0.26
4 / 10.2
Third Party Racking Option for PowerMax 8000 59