Wiring of control circuit for controlling a line contactor
The example shows the 3RW55 soft starter with a Standard circuit.
4
4
3(
4
:
9
8
0
0
/
1
4
4
3
6
6
/
/
/
7
7
7
/
/
/
$
$
1
2
1
&
/
0
'
,
'
,
'
,
'
,
$4
,
$4
8
$4
7
7
1
2
1
2
1
2
)
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
A.2.4
Connecting the temperature sensor
Requirements
• 3RW55 or 3RW55 Failsafe soft starter
• Motor with temperature switch (e.g. Thermoclick) or thermistor (e.g. PTC type A)
• Parameterization required
Example circuits
A.2 Control circuit connection
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
303