3RT1/3RH1 contactors
SIRIUS System Manual
GWA 4NEB 430 0999-02b
3-39
The following table shows you how to set up the 4-pole contactor combina-
tion for reversing in frame size S2:
Figure 3-18: 4-pole contactor combination for reversing (frame size S2)
NO contact function
not locked
If contactors are used with 1 NO contact that is intended for an auxiliary
function (e.g. as a signaling device), the wiring module must be separated.
The illustration below shows you the wiring for this function:
Figure 3-19: NC contact interlock (frame size S00)
Mounting and connec-
tion
The contactor combinations for reversing have screw-type connections that
are suitable for both screw-on and snap-on mounting on a 35 mm rail.
Conductor cross-sec-
tions
The permissible conductor cross-sections of the contactor combinations for
reversing correspond to those of the basic units for the corresponding frame
size.
Drawing: frame size S2 Step Procedure
1/2
Mount the mechanical inter-
lock between the two con-
tactors
(1/2)
.
3
Press the two connecting
clips
(3)
onto the back of the
two contactors.
2
3
3
1
3RA1924-2B
3RA1932-2G
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