Siemens SIRIUS - Figure 3-76: Replacing the Magnet Coil (Frame Size S3;DC)

3RT1/3RH1 contactors
SIRIUS System Manual
3-96
GWA 4NEB 430 0999-02b
S3 - DC operation
Figure 3-76: Replacing the magnet coil (frame size S3/DC)
Loosen the 2 screws
between the rear and front
contactor halves. Loosen
the two screws on the
plates that attach the mag-
net coil on the armature,
and remove the magnet coil
from the rear half of the
contactor.
Insert the new magnet coil,
and screw on the two plates
again with the two screws.
Replace the front half of the
contactor, and tighten the 2
screws again.
Make sure the springs are in
their correct position.
2
1
1
4
5
3
6
8
8
7