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BETA Switching
Switching Devices
5
TT3 4 soft-starting devices
8/29
Siemens ET B1 · 10/2008
8
*
You can order this quantity or a multiple thereof.
■
Dimensional drawings
5
TT3 44. soft-starting devices
■
Schematics
Switching example 5TT3 441
Switching example 5TT3 440
5
TT3 441
5
TT3 440
5 43
64
45
90
I2_11595
L1 N
T1 T2
36
5 43
55
45
90
I2_11594
L1 L2 L3
T1 T2 T3
105
5
TT3 441
L1 N
T1 T2
S2
K1
R
1
~
M
L1
N
K1
Q1
K1
S1
F1
Q1
I2_07602a
230
V AC
N L1
T2
T1
I2_07513a
t
acc
:
Acceleration time
M
st
:
Starting torque
t
acc
M
st
L1
5
TT3 440
L2 L3
T1 T2 T3
K2
K1
K2
K1
K2
K1
0
R L
S
PE 3 ~
M
L1
L2
L3
N
PE
I2_07281b
Reversing
switch
3
AC 230/400 A
L1 L2
L3
T1 T2
T3
I2_07514a
t
acc
:
Acceleration time
M
st
:
Starting torque
t
acc
M
st
© Siemens AG 2008