User Guide
Table Of Contents
- 3 3RT1 contactors/ 3RH1 control relays
- 3.1 Specifications/regulations/approvals
- 3.2 Device description
- 3.3 Application and areas of use
- 3.3.1 3RT10 contactors with 3 main contacts for switching motors
- 3.3.2 3RT14 contactors with 3 main contacts for switching resistive loads (AC-1)
- 3.3.3 3RT12 Vacuum contactors
- 3.3.4 3RT13 and 3RT15 contactors with 4 main contacts
- 3.3.5 3RT16 capacitor contactors
- 3.3.6 Contactors with an extended operating range
- 3.3.7 3RH1 control relays
- 3.3.8 3RT10 contactor relays for switching motors (interface) and 3RH11 control relays for switching auxiliary circuits
- 3.3.9 3RA13 Contactor combinations for reversing
- 3.3.10 3RT14 Wye-delta combinations
3RT1 contactors/3RH1 control relays
SIRIUS System Manual
3-62 GWA 4NEB 430 0999-02 DS 01
The following graphic shows you how to assemble the 4-pole reversing con-
tactor combination in frame size S2:
NO contact function
not interlocked
If contactors in frame size S00 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:
Fig. 3-26: NC contact wiring for the electrical interlock (frame size S00)
Mounting and connec-
tion
The contactor combinations for reversing have screw-type connections that
are suitable for both panel mounting 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
interlock between the two
contactors.
3 Insert the 2 connecting
clips on the back of the two
contactors.
Table 3-27: 4-pole reversing contactor combination (frame size S2)
2
3
3
1
3RA1924-2B
3RA1932-2G