43
2021-02-10 / V1.0
Contactors C195 Series – Installation and Maintenance Instructions
Maintenance
X
Remove the armature at the bottom of the contact
unit, see section
“Disassembling/assembling the
armature – Typ C195 X/” on page 37.
X
Disassemble the contact bridge unit, see section
“Disassembling/assembling the contact bridge
unit – type C195 X/” on page 39.
X
Hold the lower part of the contact unit (2) and pull
out both arcing chambers (13) upwards one after
the other.
13
2
Fig. 51: C195 X/: Removing/attaching the arcing chambers
Assembly
X
Push the two new arcing chambers (13) into the
contact unit (2) one after the other as far as they
will go.
X
Insert the connecting plate and contact bridge
unit into the cover and, with the auxiliary switch
actuator held in place, place the cover on the con-
tact unit. See section
„Disassembling/assembling
the connecting plate – type C195 X/“ on page 38.
X
Install the armature at the bottom side of the con-
tact unit. See section
“Disassembling/assembling
the armature – Typ C195 X/” on page 37.
X
Carefully place the contact unit on the magnetic
drive and screw it tight. See section
”Disassem-
bling/assembling the contact unit – type C195 X/”
on page 36.
X
Insert the 2 pole plates. See section
“Removing/
inserting the pole plates – type C195 X/” on page
36.
X
Assemble the 2 pole packs. See section
“Disas-
sembling/assembling the pole packs – Typ C195
X/” on page 35
.
X
Check whether the connecting plate is present
and correctly positioned:
-
To do this, use a continuity tester to check the
electrical connection between the top arcing
plates in each case.
-
All 4 arcing plates must have an electrical con-
nection to each other.
X
Reconnect all connecting cables or busbars (main
contacts, auxiliary switches and coil connections),
see
“7.2 Electrical connection” on page 21.
X
Finally, subject the contactor to a complete check
as described in section
“7.4 Checks” on page 31
.
8.3.6 Replacing the contact bridge unit –
type C195 X/
Spare parts required
-
Contact bridge unit, see chapter
“9. Spare parts”
Tools required
-
Set of Torx bits or Torx screwdriver set
-
Continuity tester
-
Torque spanner
Disassembly
DANGER
Before beginning any work on the con-
tactors, make sure that
X
there is no voltage present,
X
all safety regulations are fully ob-
served.
X
Be sure to observe section
“8.1 Safety” on page 32
.
X
Remove all connecting cables or busbars from the
main contacts, auxiliary switches and coil connec-
tions.
X
Disassemble the contact unit, see section
“Disas-
sembling/assembling the contact unit – type C195
X/” on page 36.
X
Remove the cover, see section
“Removing/attach-
ing the cover – type C195 X/” on page 38.
X
Disassemble the connecting plate, see section
“Disassembling/assembling the connecting plate
– type C195 X/” on page 38.
X
Remove the armature at the bottom of the contact
unit, see section
“Disassembling/assembling the
armature – Typ C195 X/” on page 37.
X
Disassemble the contact bridge unit, see section
„Disassembling/assembling the contact bridge
unit – type C195 X/“
.
