3RT1/3RH1 contactors
SIRIUS System Manual
GWA 4NEB 430 0999-02b
3-41
Control circuit: S0 to S3
Figure 3-22: Contactor combination for reversing, control circuit (frame sizes S0 to S3)
Technical specifications
The technical specifications of the contactor combinations for reversing cor-
respond to those of the basic units for the corresponding frame size.
3.3.9 Star-delta combinations
The 3RA1 star-delta combinations in frame sizes S00 to S3 are available as
follows:
• Fully assembled with the usual auxiliary switches in the following frame
sizes:
- S00-S00-S00
- S0-S0-S0
- S2-S2-S0
- S2-S2-S2
- S3-S3-S2
Frame sizes S2 to S3 are delivered already mounted on a base plate.
• As a kit for self-assembly
The same accessories can be used as for the basic units of the correspond-
ing frame size (see Section 3.4, "Contactor accessories").
Pushbutton switch control Continuous contacting
L1/L+
S0
S1
K1
K1
N/L
NSB00638
F3
.3
.4
A1
A2
111
112
A1
122
121
K2
.3
.4
S2
S2
S1
F2
96
95
K2
K1
K2
A2
L1/L+
S
K1
N/L
NSB00639
F3
A1
A2
111
112
A1
122
121
F2
96
95
K2 K1
K2
A2
10 2
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