Wiring of the 3RW55 soft starter
The example shows the 3RW55 soft starter with a Standard circuit.
1
/
3
6
6
4
$
$
12
12
12
1&
12
/
0
',
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',
$4,
$48
$4
7
7
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4
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4
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:98
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7
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7
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4
F1 Fuse
S1 Switch: Start/stop
S4 Pushbutton: Reset > 4 s
Q1 Motor starter protector
Q11 3RW55 soft starter
Q21 Contactor
P1 Indicator light
M1 Motor
WARNING
Automatic restart.
Can cause death or serious injury.
If a starting command is pending, a restart will be triggered automatically after the reset. This
particularly applies if the motor protection has tripped. Dangerous states of the system can
result.
Reset the start command (e.g. via the PLC or switch) before performing a reset.
To do this, for example, link the group error output (terminals 95 and 96) into the control.
Example circuits
A.3 Special applications
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006 337
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