Horner APG RCS SmartStix - Manual (Page 24)

PAGE 24 15 MAR 2003 CH.2
MAN0305-04
a.
Clearance / Adequate Space
Install devices to allow sufficient clearance to open and close the panel door. Note that the MiniOCS is
mounted on a panel door and the MiniRCS is mounted in a panel box.
Table 2.1 – Minimum Clearance Requirements for Panel Box and Door
Minimum Distance between base of device and sides of
cabinet
2 inches (50.80mm)
Minimum Distance between base of device and wiring ducts
1.5 inches (38.10mm)
If more than one device installed in panel box (or on door):
Minimum Distance between bases of each device
4 inches between bases of each
device (101.60mm)
When door is closed:
Minimum distance between device and closed door
(Be sure to allow enough depth for MiniOCS / MiniRCS Model
and Ground Screw Extension.)
2 inches (50.80mm)
b.
Grounding
Panel box: The panel box needs to be properly connected to earth ground to provide a good common
ground reference.
Panel door: Tie a low impedance ground strap between the panel box and the panel door to ensure that
they have the same ground reference (Figure 2.10).
Devices in panel box and on the panel box door:
Use the mounting hardware provided with the device, which includes mounting clips.
c.
Temperature / Ventilation
Ensure that the panel layout design allows for adequate ventilation and maintains the specified ambient
temperature range. Consider the impact on the design of the panel layout if operating at the extreme
ends of the ambient temperature range. For example, if it is determined that a cooling device is required,
allow adequate space and clearances for the device in the panel box or on the panel door.
Warning: Be sure to meet the ground requirements of the panel manufacturer and also meet
applicable electrical codes and standards.
Warning: To provide maximum noise immunity and to insure minimum EMI radiation, the V-
signal (DC power return) need to be connected to earth ground at the power supply.
The user must ensure that the power supply selected is compatible with this method
of grounding.