GE GFK-2958E, User Manual

Page: 32 / 425

Chapter 3: Configuration
GFK-2958E RSTi-EP User Manual 28
3.2.1 Calculation of Space Requirements
The space requirements for a RSTi-EP station with n modules ( horizontal installation ) is calculated as
follows:
Height: 120 mm (4.72 in)
+ 40 mm (2 x 1.57 in)
= 200 mm (7.87 in)
distances at top and bottom
Width: 8 mm (1.57 in)
+ 52 mm (2.05 in)
+ n x 11.5 mm (0.45 in)
+ 11.5 mm (0.45 in)
+ 2 x 20 mm (0.79 in)
= 111.5 mm (4.39 in) + n x 11.5 mm (0.45 in)
end bracket
network adapter
n modules
end plate and end bracket
distances to the sides
For vertical installation interchange height and width. When calculating the width, 4.5 mm (0.18 in)
for the must be added for the end bracket.
3.3 Use in a Potentially Explosive Atmosphere
If the RSTi-EP is used in a potentially explosive atmosphere rated as Zone 2, the housing must meet
the requirements of explosion protection type Ex n or Ex e and protection class IP54. Sensors and
actuators that are located in Zone 2 or in a safe zone can be connected. All cable glands on the
housing must be approved for Ex e.
Use in a Potentially Explosive Atmosphere