Siemens Industry, Inc. 5300 Triangle Parkway, Norcross, GA 30092
A5E31166448A-006
(Magnetically-latched contactors are equipped with coils de-
signed for intermittent duty only. Faulty coil action can be caused
by a defective coil or damaged control module. Replacement
of both is recommended when the contactor will not pull in or
drop out. Coil replacement for the purpose of changing the con-
trol voltage rating does not require auxiliary contact or control
module replacement.)
Coil Replacement
–
refer to Figure 1, Table 2.
Loosen the two screws at each side of the upper base and re
-
move the wire connections. Loosen the assembly screws (1).
Pull the loosened upper base structure (2) forward. Unplug the
coil (3) from the upper base, plug in a new coil and replace
the upper base structure while depressing the kick-out springs
(4) to ensure they set in the molded seats in the crossbar (5).
Reconnect the four coil leads. Tighten the assembly screws
referring to Table 2. Mechanically operate the unit to ensure
there is no binding of the crossbar.
Fig. 2 Connection Diagram for Separate Control.
Contact Inspection
–
refer to Figure 1
Loosen the two arc chute screws (6) located immediately
above and below the nameplate and remove the arc chute
(7). The contacts (8) are visible. Re-tighten the screws per
Table 2.
Contact Wear and Replacement
refer to Figure 1, Table 2.
CAUTION: Install arcbox prior to energization
Contacts are designed for a long service life based on a spe
-
cific electrical load under normal service and environmental
conditions. If any one of these factors is altered, a shorter ser
-
vice life or a breakdown will result. Contactors are subject to
both mechanical and electrical wear during their operation. In
most cases mechanical wear is insignificant. The erosion of
the contacts is due to electrical wear. During arcing, material
from each contact is vaporized and blown away from the useful
contacting surface.
Note:
When contact replacement is required, it is necessary
to replace both stationary and moving contacts plus moving
contact overtravel springs. After replacement, manually oper-
ate switch to be sure binding does not occur.
After removing the arc chute (7) and with replacement contacts
in hand, compress the overtravel spring (9) and remove the
moving contact (8) from the crossbar (5). Remove any power
connections. Remove screws (10) and lift out the stationary
contact carriers (11). The new contacts are then installed by
reversing the above procedure and referencing Table 2 for
torque specifications. Moving contacts should be free to move,
overtravel spring seated, and the crossbar free to move when
the arc chute is in position. Silver cadmium oxide contact but-
tons require NO dressing or lubrication during their life.
Magnet - Armature Assembly
Self alignment and permanent air gap features of the magnet
armature make replacement unnecessary. Mating pole face
surfaces should be kept clean.
Short Circuit Ratings
These lighting contactors are suitable for use on a circuit
capable of delivering not more than the current (rms sym
-
metrical amperes) shown in circuits rated not more than the
voltage shown in table 8.
Table 4 - Coil Data
ON
OFF
VOLTAGE
CONTROL
L1
L2
ON
OFF
( + )
( - )
Black
( + )
( - )
AC
AC
L2
Red
White
CLMFCCK11
3
2
CLMFCAK11
OFF
ON
R
ed
Pushbutton
Momentary
ON
OFF
Pushbutton
Maintained
R
ed
CLM CONTACTOR
AC Coil Data
Model L Coil Data - Typical Values
Dropout VA
40
40
200
130
200
130
Inrush VA
600
900
1300
60A
60A
100A
100A
200A
200A
900
1300
410
Poles
Contactor
2 - 4
4 - 5
2 - 3
4 - 5
2 - 3
4 - 5
