Siemens SIRIUS 3RW52 Manual page 166

Example circuits
A.1 Main circuit connection
Motor rotation contrary to the line phase direction
Q1
F3
F3*
Q11
Q21
M1
PE
166
Motor starter protector
aR partial-range fuse for protection of semiconductors (e.g. SITOR 3NE3/4 or 3NC)
gR full-range fuse for protection of semiconductors (e.g. SITOR 3NE1)
Soft starter
Main or line contactor for galvanic isolation
Motor
Protective conductor
SIRIUS 3RW52 Soft Starter
Manual, 01/2019, A5E35630451002A/RS-AD/004