Wiring for the inside-delta circuit in Ex operation with additional line contactor in the delta
/
)
1
4
3
6
6
$
$
1
2
1
&
/
0
'
,
'
,
'
,
'
,
$4
,
$4
8
$4
7
7
1
2
1
2
1
2
4
4
/
4
0
/
/
3(
7 7 7
4
)
0
8
9
:
8 9
:
/ / /
F1
Fuse
S1
Switch: Motor On / Off
S2
Pushbutton: Reset
Q1
Motor starter protector
Q11
3RW55 soft starter
Q21
Line contactor
P1
Indicator light
M1
Motor
PE
Protective conductor
F3*
aR partial-range fuse for protection of semiconductors, e.g. SITOR 3NE3/4 or 3NC (optional)
Example circuits
A.3 Special applications
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
309