Speedfax 2017

For Operation in the Control Cabinet
3RW Soft Starters
Project Planning aids
Schematics
3RW30 . . connection examples for control circuit
Control using switches
N(L-) L1 (L +)
ON/OFF
1)
Automatic mode
N(L-)
L1(L+)
ON/OFF
1)
A2
A1
Q11
1
NSB0_01914
A2 A1 1
Q11
NSB0_01895
U s
ON
>5 min
NSB0_01916a
Control by pushbutton
N(L-) L(L+)
OFF
Control of a main contactor
t
Soft Starter
Control
OFF
Q21
N(L-) L1(L+)
ON
A2 A1 1
13 NO 14
A2 A1 1
1)
ON/
OFF
13 NO 14
ON
ON
Q11
NSB0_01942
Q11
NSB0_01997
3RW30 connection examples for main circuit 2)
3RW30 – 3-phase motor with
3NA/3NE fuse
3RV motor starter protector
F1
3NA/3NE
17 CONTROL
PRODUCTS
Q21
3RT
3RV
Q11
3RW30
Q11
3RW30
M
3~
NSB0_01943
M
3~
NSB0_01944
1) Caution: Risk of restarting!
When operating with a switch (ON/OFF) a new, automatic restart will take
place automatically if the start command is still active at terminal 1.
2) As an alternative, the motor feeder can also be installed as a fuseless or as
a fused version. For fuse and switching device coordination, see
"Technical specifications".
The wiring diagrams are provided only as examples.
Siemens Industry, Inc. SPEEDFAX Product Catalog 17-287