Example circuits
A
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 3RW51 soft starter are wired into the motor feeder between the motor
starter protector and the motor. This achieves type of coordination 1.
/
/
4
/
3(
7
/ % % %
7
/
7
7
7
7
/
/
/
/
4
:
9
8
0
0
4
Q1
Motor starter protector (e.g. 3RV2 or 3VA)
Q11
3RW51 soft starter
Q21
External bypass contactor
M1
Motor
PE
Protective conductor
SIRIUS 3RW51 Soft Starter
Equipment Manual, 09/2020, A5E37108631002A/RS-AC/003
167
