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
3-60 GWA 4NEB 430 0999-02 DS 01
4-pole contactor combi-
nation for reversing
4-pole contactor combinations for reversing are available in frame sizes S0
and S2. You will require the following to mount these combinations:
• Frame size S0: locking device for mechanical interlock
• Frame size S2: locking device for mechanical interlock and 2 connecting
clips
The following graphic shows you how to set up the 4-pole contactor combi-
nation for reversing in frame size S0:
Drawing: frame size S0 Step Procedure
1/2 Remove the 4th pole from
one of the two contactors
by releasing the snap catch
(1).
3/4 Put the 4th pole on the
other side of the same con-
tactor by placing the
catches on the pole into
the openings shown on the
contactor and snapping the
pole onto the contactor.
5/6 Mount the mechanical
interlock between the two
contactors (5/6).
Table 3-25: 4-pole contactor combination for reversing (frame size S0)
2
1
1
3
4
3
4
6
5
3RA1924-2B