Calculation Of Space Requirements; Use In A Potentially Explosive Atmosphere - GE RSTi-EP User Manual

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:
+ 40 mm (2 x 1.57 in)
= 200 mm (7.87 in)
Width:
+ 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)
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.
GFK-2958E
120 mm (4.72 in)
8 mm (1.57 in)
Use in a Potentially Explosive Atmosphere
RSTi-EP User Manual
Chapter 3: Configuration
distances at top and bottom
end bracket
network adapter
n modules
end plate and end bracket
distances to the sides
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