NEC T30A - Figure 1-9 Rack Dimensions; Table 1-7 Internal Dimension Requirements for Rack

-18-
<4> The rack's internal dimensions must meet the dimension requirements shown in Figures A to C
below.
[unit: mm]
Figure 1-9 Rack Dimensions
Table 1-7 internal Dimension Requirements for rack
Site
Description
Requirement
A
Distance from front device mounting bracket to inner
side of front door
25mm or above
B
Gap between front and rear device mounting brackets
680 to 1050mm
C
Distance from rear of device to inner side of rear door
30mm or above
Rear door
Mounting
brackets
Front door
Enlarged view of X area