Example circuits
A.2 Control current connection
SIRIUS 3RW50 soft starter
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Manual, 09/2019, A5E35628455002A/RS-AA/001
A.2
Control current connection
A.2.1
Control by pushbutton
Requirements
ON / RUN relay output was parameterized to ON.
Wiring of control circuit for control by pushbutton
F1
Fuse
S1
Pushbutton: Start motor
S2
Pushbutton: Reset > 4 s
S4
Pushbutton: Stop motor
Q1
Motor starter protector
Q11 3RW50 soft starter
M1
Motor
PE
Protective conductor
Alternatively, the motor feeder can be assembled as a fuseless or fused version with type of
coordination 1 or 2.