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2021-02-10 / V1.0
Contactors C195 Series – Installation and Maintenance Instructions
Maintenance
8.3 Corrective maintenance measures –
type C195 X/
The contactors are largely maintenance-free. Therefore
there is no general requirement to replace parts during
its service life.
However, if an excessive number of emergency shut-
downs or damage has occurred during operation,
Schaltbau offers original spare parts.
WARNING
The use of non-approved parts can lead
to accidents and serious personal injury
due to malfunction.
X
Only use original spare parts.
X
Do not combine individual parts
from different contactors!
8.3.1 Preparatory disassembly/assembly
steps – type C195 X
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
.
To replace the arcing chambers, contact bridge unit
and main contacts on the contactors of type C195 X/,
the cover of the contact unit must be opened. For this
purpose, the following preparatory assembly steps
must be carried out:
-
Disassembling the pole packs
-
Removing the pole plates
-
Disassembling the contact unit
-
Disassembling the armature
-
Removing the cover
-
Disassembling the connecting plate
To replace the main contacts, the contact bridge unit
must additionally be disassembled.
Disassembling/assembling the pole
packs – Typ C195 X/
Tools required
-
Set of Torx bits or Torx screwdriver set
-
Torque spanner
Disassembly
ATTENTION
Installing the pole packs with wrong magnetic pola-
rity (north pole, south pole) will lead to malfunctions
and destruction of the contactor.
X
Before disassembling, note the mounting direc-
tion of the pole packs so that they can be re-
installed with the correct polarity.
X
Unscrew the 4 screws (8) on the side of the two
pole plates (9).
X
Pull the two pole packs (10) off the pole plates (9).
10
8
9
S
S
N
N
Fig. 39: C195 X/: Disassembling the pole packs
ATTENTION
Do not disassemble the pole packs (10) (pole plate
extension/core/permanent magnet) any further be-
cause there is a very high risk of positioning the mag-
netic cores incorrectly.
