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3RT1/3RH1 contactors
SIRIUS System Manual
3-98
GWA 4NEB 430 0999-02b
Frame size S3
Figure 3-78: Replacing the contact piece (frame size S3)
Contact pieces
The following contact pieces can be used for frame sizes S2 and S3 for the
different performance classes:
Figure 3-79: Contact pieces (frame sizes S2/S3)
Loosen the 2 screws on the
frontplate of the contactor, and
remove the top section of the
contactor
(1, 2)
.
Remove the movable contact
piece by gently tipping it
upward and then pulling it out
(3, 4)
. Loosen the screws that
attach the two immovable con-
tact pieces
(5)
.
Remove the old contact pieces
(6)
, and screw on the new con-
tact pieces
(7)
. Push in a new
movable contact piece
(8)
.
Replace the top section of the
contactor, and tighten the 2
screws on the frontplate.
2
1
1
4
5
3
8
6
7
9
10
10
3RT1034
15 kW
3RT1035
18.5 kW
3RT1036
22 kW
34
35
36
3RT1044
30 kW
3RT1045
37 kW
3RT1046
45 kW
3RT1446
140 A (AC-1)
S2
S3