Siemens SIRIUS 3RW52 - Page 248

Example circuits
A.3 Special applications
SIRIUS 3RW52 Soft Starter
248 Equipment Manual, 04/2020, A5E35630451002A/RS-AE/005
Wiring
The example shows the 3RW52 soft starter in the inline circuit.
F1
Fuse
S1
Switch: Start/stop
S2
Pushbutton: Reset > 4 s
S
n
Soft start selector button
S
n1
Start / stop (direct-on-line starting)
Q1
Motor starter protector
Q11
Soft starter
Q21
Direct-on-line starting contactor
P1
Indicator light, fault
P2
Indicator light
P3
Indicator light
M1
Motor
PE
Protective conductor