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2021-02-10 / V1.0
Contactors C195 Series – Installation and Maintenance Instructions
Maintenance
17
16
2
Fig. 53: C195 X/: Replacing the main contacts
Assembly
X
Insert the new main contacts (17) into the contact
unit (2).
X
Lightly screw on the new main contacts (17) with
the two hexagon screws (16) and washers (the
screws must be loosened again later for cable or
busbar installation).
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 contact bridge unit – type C195 X/” on page
39.
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
“Disassem-
bling/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 top arcing plates must have an electrical
connection 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
.
