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
3-61
Assembly of the con-
tactors in frame size S0
with front interlocking
Drawing: frame size S0 Step Procedure
1/2 Remove the 4th pole of the
left contactor by pressing the
ribbed surfaces at the top and
bottom at the same time (1)
and then removing the pole
(2).
3/4 Attach the pole to the left side
of the same contactor.
5/6 Put the contactors together
by inserting two mechanical
couplers (3RA1922-2C) in the
appropriate openings of the
contactor (5), and then press
the other contactor onto
these mechanical couplers
(6).
7/8/9 Mount the mechanical inter-
lock at the front (3RA1924-1A)
over the two contactors.
Table 3-26: 4-pole reversing contactor combination with front interlock (frame size S0)
2
1
1
3
4
3
4
6
5
5
3RA1922-2C
8
9
7