Siemens SIMATIC NET RUGGEDCOM RST2228 Equipment Manual page 44

Requirements
Note
Protective grounding during operation in compliance with UL 62368-1/CSA-
C22.2 No. 62368-1
When operating in compliance with UL 62368-1/CSA-C22.2 No. 62368-1, the device
must be connected to protective grounding via the grounding screw to meet UL
approval requirements. The work must be performed by a qualified electrician in
accordance with UL 62368-1/CSA-C22.2 No. 62368-1.
To wire a permanently connected protective grounding, use #14-8 AWG copper
cables or copper cables with a cross-section of 1.5 to 6 mm
Required tools/hardware
#1 Phillips screwdriver
Braided or equivalent ground wire
M3.5 (#6) ring tongue
Attaching the ground connection
To permanently attach a ground connection to the device, do the following:
1.
2.
3.
4.
RUGGEDCOM RST2228
Equipment Manual, 10/2023, C79000-G8976-1359-19
Hardware
Remove the M3 screw
Chassis ground connection
1
M3 screw
2
M3 ring tongue
3
Figure 2.21 Ground connection assembly
Crimp an M3 ring tongue to the end of the ground wire.
Using the M3 screw
2
chassis ground connection
Tighten the screw with a maximum tightening torque of 1 N·m (8.9 lbf-in).
2
Quantity
1
1
1
.
2
1
, secure the M3 ring tongue
.
1
Installing the device
2.5.3 Grounding the device
2
(0.05 to 0.2 in
Detail
For removing/installing terminal blocks
and the terminal block cover.
For grounding the device to safety
Earth.
For connecting the ground wire to the
chassis ground connection.
2
of the ground wire to the
3
2
).
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