Siemens SIRIUS 3RW44 - Soft Starter with Contactor Disconnector (Main Contactor)

Installation, Connection and Branch Layout
SIRIUS 3RW44 System Manual
3-8 GWA 4NEB 535 2195-02 DS 04
3.2.4 Soft starter with Contactor Disconnector (Main Contactor)
If galvanic decoupling is required, a motor contactor can be installed between
the soft starter and the disconnector, or a fault output relay can be used.
(Refer to Chapter 10.3 "Technical Data" for the contactor assignment)
Figure 3-6:Block diagram of branch with optional main contactor / contactor disconnector
Notice
If a main or line contactor is used, this contactor must not be connected
between the soft starter and the motor or in the return line between the motor
and the soft starter. Otherwise the soft starter would not recognize the current
circuit version (standard circuit or inside delta circuit) and would output the error
message: "Load phases 1-3 missing".
U1 V1 W1
V2
U2W2
U1 V1 W1
W2 U2
V2
L1
L2
L3
PE
3/N/PE~ 50 Hz 400 V
Q1
G1
M1
K1
011_Standardschaltung und Hauptschütz Zeichnung mit Bildern.vsd
Q21
Q11