Installation
46
9229 0025 176 0E
2021-11-15
Mounting the protective plates (optional)
The protective plates are metal sheets that separate the high-voltage area from the
operating mechanism area and provide additional protection against the pressure
wave in the event of an arc fault.
The protective plates are accessories and depend on the design of the switching de-
vice. You can ask the manufacturer if mounting is possible.
The protective plates can also be mounted for vacuum circuit-breakers with a with-
drawable part.
Fig. 63
Mount a continuous protective plate between
the pole and operating mechanism housing
(optional)
Fig. 64
Mounting divided protective plates on both
sides (optional, only for 31.5 kA and distance
between pole centres 150/160 mm)
M8
24 Nm
M8
24 Nm
Cover remains mounted.
• Remove fixing elements and installation drawing
from the supplementary equipment.
• Fig. 63: Guide continuous protective plate (62)
between pole shell and operating mechanism hous-
ing and mount on the operating mechanism housing.
• Fig. 64: Mount the protective plates (63) on both
sides.
Fasten M8 hexagon socket screws with a tightening
torque of 24 Nm.
• Fig. 65: Mount the angled protective plate (64) on
top of the operating mechanism housing.
• If necessary, attach the transparent insulating plate
(65) to the angled protective plate (64). See Fig. 66.
Fasten M12 hexagon socket screws with a tightening
torque of 84 ±6 Nm.
Fig. 65
Mounting the angled protective plate only for
24 kV 2000 A / 2500 A
0025-59
M12
84 ±6 Nm
