GE 994-0089 User Manual

Page of 92
 GE 
Energy 
 
D400 Substation Data Manager User's Manual  
23
 
2.5 Physical 
Installation 
The D400 can be installed in a standard 19-inch rack or substation panel. 
Rack Mounting 
The D400 mounts directly into an industry-standard 19-inch [482.6 mm] equipment 
mounting rack with EIA universal mounting rail hole spacing. 
 
The top cover of the D400 can get hot during peak operation. Ensure 
that there is at least 1U (1.75 inch [44.45 mm]) of free space above the 
D400 unit for proper ventilation.  
When the unit is operating above the 50 °C ambient temperature, safe 
handling precautions are recommended to prevent burns. 
» 
To mount the D400 on a rack: 
1. 
Position the D400 in the rack. 
2. 
Holding the D400 firmly in the rails of the mounting rack, insert and tighten the four 
rack screws.  
The recommended tool torque settings for zinc-plated mounting screws are: 
–  10-32 UNF screws use 22.2 in-lb [2.50 Nm] 
–  12-24 UNC screws use 31.0 in-lb [3.51 Nm] 
–  M5x0.45 screws use 18.1 in-lb [2.04 Nm] 
–  M6x0.5 screws use 33.3 in-lb [3.76 Nm]  
Panel Mount 
» 
To mount the D400 in a panel: 
If you are using a panel cutout, use the following cutout dimensions: 
 
1.
75
 in
.
[4
4.
46
 m
m
]
3.
50
 in
.
[8
8.
90
 m
m
]
Cutout for panel mounting
18.3 in. [464.8 mm]
17.5 in. [444.5 mm]
.162 in.
[4.1 mm]