Example circuits
A.1
Main circuit connection
A.1.1
Feeder assembly, type of coordination 1 fuseless
Feeder assembly, type of coordination 1 fuseless
The connections of the SIRIUS soft starter are wired into the motor feeder between the
motor starter protector and the motor. This achieves type of coordination 1.
Q1
Q11
M1
PE
SIRIUS 3RW52 Soft Starter
Manual, 01/2019, A5E35630451002A/RS-AD/004
Motor starter protector (e.g. 3RV2 or 3VA)
Soft starter
Motor
Protective conductor
A
161