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Q1
F3
F3*
Q21
Q22
Q11
M1
PE
A.2
Control circuit connection
A.2.1
Control by pushbutton
Requirements
• ON / RUN relay output was parameterized to ON
SIRIUS 3RW51 Soft Starter
Equipment Manual, 09/2020, A5E37108631002A/RS-AC/003
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)
External bypass contactor
Motor contactor for electrical decoupling
3RW51 soft starter
Motor
Protective conductor
Example circuits
A.2 Control circuit connection
173
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