Installation and Commissioning
2
0
1
8
-0
7
21
F2D0-MIO* Fieldbus Cable Gland
3.2.3
Grounding and Shielding
Equipotential Bonding of Devices in F2* Metal Housings
For electronic components in F2* metal housings in hazardous areas, suitable equipotential
bonding in accordance with IEC/EN 60079 is required. Therefore, the device is designed as
follows:
■
The shield (terminal S) of the intrinsically safe fieldbus trunk is internally connected to the
F2* metal housing.
■
The housing has a grounding point with a grounding screw. The grounding connection
must be secured against loosening and corrosion, e. g., by using tinned cable plates.
Fieldbus Entries Clamping Ranges: Torques
Cable Entry Option
CG or Plug
Type
S1+S2+S3
S1+S2
S1
Body
00
1 x M20, 8 x
M16 blind plug
plastic
SP.PE.M20.PA
.C
-
-
-
2 Nm
01
1 x M20, 8 x
M16 blind plug
stainless steel
SP.MD.M20.S
S.C
-
-
-
5.5
Nm
02
1 x M20, 8 x
M16 cable
glands plastic
CG.PEDS.M2
0.PA.C.10
-
6
…
8.5 mm:
5 Nm
7
…
12 mm:
5 Nm
2 Nm
03
1 x M20, 8 x
M16 cable
glands nickel
plated brass
CG.NA.M20S.
BN.C
4
…
6 mm:
20 Nm
6
…
9 mm:
18 Nm
9
…
12 mm:
15 Nm
5.5
Nm
04
1 x M20, 8 x
M16 cable
glands
stainless steel
CG.NA.M20S.
SS.C
4
…
6 mm:
20 Nm
6
…
9 mm:
18 Nm
9
…
12 mm:
15 Nm
5.5
Nm
05
5 x M20 cable
glands plastic
CG.PEDS.M2
0.PA.C.10
-
6
…
8.5 mm:
5 Nm
7
…
12 mm:
5 Nm
2 Nm
05
5 x M20 cable
glands plastic
SP.PE.M20.PA
.C
Unused thread
2 Nm
Table 3.2
The torques that are actually required depend on the clamping range. This range is
determined by the diameter of the cable and the resulting seal combinations (S1+S2+S3,
S1+S2, S1) used with the cable gland or plug. For details see the documentation on the
cable gland or plug type available at www.pepperl-fuchs.com.
Note!
Careful when tightening cap nuts!
■
The cap nuts must be securely tightened. Tightening the cap nuts too much or not enough
both can affect the degree of protection.
■
The tightening torques of cap nuts vary, depending on the cable type used. For exact
details refer to the documentation of your cable manufacturer.
Note!
Ensure potential equalization of F2 Metal Housings
Ensure that the housing is connected properly to the potential equalization.
