Factors Affecting Panel Layout Design And Clearances - HORNER APG XL10 PRIME OCS User Manual

3.6

Factors Affecting Panel Layout Design and Clearances

WARNING: It is important to follow the requirements of the panel manufacturer
and to follow all applicable electrical codes and standards.
The designer of a panel layout needs to assess the requirements of a particular system and to consider
the following design factors.
3.6.1 Clearance / Adequate Space
Install devices to allow sufficient clearance to open and close the panel door.
Table 3.1 – Minimum Clearance Requirements for Panel Box and Door
Minimum Distance between
base of device and sides of cabinet
Minimum Distance between
base of device and wiring ducts
If more than one device installed in panel box
(or on door): Minimum Distance between
bases of each device
When door is closed:
Minimum distance between device and
closed door
(Be sure to allow enough depth for the OCS.)
3.6.2 Grounding
WARNING: Be sure to meet the ground requirements of the
panel manufacturer and also meet applicable electrical codes and standards.
Panel Box: The panel box must 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.
3.6.3 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.
3.6.4 Orientation
When panel-mounted, there are no orientation restrictions on the EXL10/XL10 PRIME OCS.
J u l y 6 , 2 0 2 2
MAN1029-10-EN_EXL10_XL10P_UM
2" (50.80mm)
1.5" (38.10mm)
4" (101.60mm) between bases of each device
2 (50.80mm)
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