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
GWA 4NEB 430 0999-02 DS 01
3-69
The following graphic shows you the components of the kits for the wye-
delta combinations in frame sizes S0 to S3 and explains how to put it
together:
Note
In NAFTA applications, a mechanical interlock is required between contac-
tors K2 and K3.
Drawing: frame size S0 Step Procedure
1 Attach the wiring modules
and the wye-point link in
order to connect the main
conducting paths and to
interlock the combination
electrically.
Drawing: frame size S2 (S3) Step Procedure
1/2 Place the wye-point link on
the wye contactor.
Tighten the main connec-
tions.
3 Place the wiring module on
the contactor undersides to
connect the main conduct-
ing paths.
Drawing: frame sizes S3-S3-S2 Step Procedure
1 Attach the wye-point link to
the wye contactor.
2 Attach the wiring module to
the contactor undersides to
connect the main conduct-
ing paths.
Table 3-30: Assembly of the wye-delta combinations in frame sizes S0 to S3
1
1
1
1
2
3
À
2
1