3RT, 3RH, 3TB, 3TC, 3TH, 3TK Contactors for Special Applications
Contactors with Extended Tolerance 0.7 ... 1.25 x U
s
, for Railway Applications
3RT10 motor contactors, 5.5 ... 45 kW
DC operation · DC solenoid system
Screw terminals
For screw and snap-on mounting onto standard mounting rail
Contactor control unit
Solenoid fitted with varistor
Rated data
AC-2 and AC-3
T
u
: up to 70 °C
Rated
operational
current
I
e
at
400 V
A
Auxiliary contacts
1)
Rated control DT
supply voltage
U
s
Screw terminals
PU
PS*
(UNIT,
SET, M)
Price
per PU
PG
Weight
per PU
approx.
Rating of
induction
Ident.
motors at 50 Hz No.
400 V
kW
Order No.
Version
NO
NC
V DC
kg
For screw and snap-on mounting onto
35 mm standard mounting rail
Size S0
17
25
7.5
11
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
24
110
24
110
24
110
24
110
24
110
B
B
B
B
B
B
B
B
B
B
3RT10 25-1XB40-0LA2
3RT10 25-1XF40-0LA2
3RT10 26-1XB40-0LA2
3RT10 26-1XF40-0LA2
3RT10 34-1XB40-0LA2
3RT10 34-1XF40-0LA2
3RT10 35-1XB40-0LA2
3RT10 35-1XF40-0LA2
3RT10 36-1XB40-0LA2
3RT10 36-1XF40-0LA2
1
1
1
1
1
1
1
1
1
1
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
101
101
101
101
101
101
101
101
101
101
0.625
0.340
0.627
0.445
1.432
1.505
1.491
1.432
1.491
1.432
Size S2
32
40
50
15
18.5
22
For screw and snap-on mounting onto
35 mm and 75 mm standard mounting rail
Size S3
65
80
95
30
37
45
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
24
110
24
110
24
110
B
B
B
B
B
B
3RT10 44-1XB40-0LA2
3RT10 44-1XF40-0LA2
3RT10 45-1XB40-0LA2
3RT10 45-1XF40-0LA2
3RT10 46-1XB40-0LA2
3RT10 46-1XF40-0LA2
1
1
1
1
1
1
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
101
101
101
101
101
101
2.864
2.775
2.871
2.720
2.913
2.913
1) Auxiliary switch blocks mountable as standard contactors.
* You can order this quantity or a multiple thereof.
Siemens LV 1 · 2006
3/71
3
3RT, 3RH, 3TB, 3TC, 3TH, 3TK Contactors for Special Applications
Contactors with Extended Tolerance 0.7 ... 1.25 x U
s
, for Railway Applications
3RT10 motor contactors, 5.5 ... 45 kW
DC operation · DC solenoid system
Cage Clamp terminals
For screw and snap-on mounting onto standard mounting rail
Contactor control unit
Solenoid fitted with varistor
3
3RT10 ..-3X.40-0LA2
Rated data
AC-2 and AC-3
T
u
: up to 70 °C
Rated
operational
current
I
e
at
400 V
A
Auxiliary contacts
1)
Rated control DT
supply voltage
U
s
Cage Clamp terminals
for coil connections
Order No.
Version
Price
per PU
PU
PS*
(UNIT,
SET, M)
PG
Weight
per PU
approx.
Rating of
induction
Ident.
motors at 50 Hz No.
400 V
kW
NO
NC
V DC
kg
For screw and snap-on mounting onto
35 mm standard mounting rail
Size S0
17
25
7.5
11
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
24
110
24
110
24
110
24
110
24
110
B
B
B
B
C
B
C
B
B
B
3RT10 25-3XB40-0LA2
3RT10 25-3XF40-0LA2
3RT10 26-3XB40-0LA2
3RT10 26-3XF40-0LA2
3RT10 34-3XB40-0LA2
3RT10 34-3XF40-0LA2
3RT10 35-3XB40-0LA2
3RT10 35-3XF40-0LA2
3RT10 36-3XB40-0LA2
3RT10 36-3XF40-0LA2
1
1
1
1
1
1
1
1
1
1
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
101
101
101
101
101
101
101
101
101
101
0.340
0.645
0.630
0.639
1.466
1.500
1.486
1.515
1.489
1.466
Size S2
32
40
50
15
18.5
22
For screw and snap-on mounting onto
35 mm and 75 mm standard mounting rail
Size S3
65
80
95
30
37
45
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
24
110
24
110
24
110
B
B
B
B
B
B
3RT10 44-3XB40-0LA2
3RT10 44-3XF40-0LA2
3RT10 45-3XB40-0LA2
3RT10 45-3XF40-0LA2
3RT10 46-3XB40-0LA2
3RT10 46-3XF40-0LA2
1
1
1
1
1
1
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
101
101
101
101
101
101
2.855
2.787
2.720
2.720
2.913
2.913
1) Auxiliary switch blocks mountable as standard contactors.
* You can order this quantity or a multiple thereof.
3/72
Siemens LV 1 · 2006
3RT, 3RH, 3TB, 3TC, 3TH, 3TK Contactors for Special Applications
Contactors with Extended Tolerance 0.7 ... 1.25 x U
s
, for Railway Applications
3TB5 motor contactors, 55 ... 200 kW
■
Overview
EN 60947-4-1.
For requirements according to IEC 60077-1 and IEC 60077-2.
The contactors are finger-safe according to EN 50274. Terminal
covers may have to be fitted onto the connecting bars,
depending on the configuration with other devices.
■
Application
For operation in plants which are subject both to considerable
variations in the control voltage and to high ambient
temperatures, e.g. in railway applications.
■
Selection and ordering data
3TB50 to 3TB56 contactors
With screw terminals
For screw fixing
Solenoid fitted with varistor
Size
Rated data
AC-2 and AC-3
Ratings of induction motors
Opera-
at
tional
current
I
e
at
400 V
A
230 V
400 V
500 V 690 V
kW
kW
kW
kW
NO
NC
V DC
kg
Auxiliary
contacts
1)
Rated control supply DT Order No.
voltage
U
s
Price
per PU
PU
PS*
(UNIT,
SET, M)
PG
Weight
per PU
approx.
Contactors for switching AC voltage ·
DC operation · DC solenoid system
6
8
10
12
110
170
250
400
37
55
75
115
55
90
132
200
75
110
160
255
90
132
200
355
2
2
2
2
1
1
1
1
24
110
24
110
24
110
110
C
C
C
C
C
C
C
3TB50 17-0LB4
3TB50 17-0LF4
3TB52 17-0LB4
3TB52 17-0LF4
3TB54 17-0LB4
3TB54 17-0LF4
3TB56 17-0LF4
1 1 unit
1 1 unit
1 1 unit
1 1 unit
1 1 unit
1 1 unit
1 1 unit
101
101
101
101
101
101
101
6.674
6.640
9.250
9.222
16.800
8.845
19.793
1) The number of auxiliary contacts cannot be increased.
* You can order this quantity or a multiple thereof.
Siemens LV 1 · 2006
3/73
3
3RT, 3RH, 3TB, 3TC, 3TH, 3TK Contactors for Special Applications
Contactors with Extended Tolerance 0.7 ... 1.25 x U
s
, for Railway Applications
3TC contactors for switching DC voltage, 2-pole
■
Overview
EN 60947-4-1.
For requirements according to IEC 60077-1 and IEC 60077-2.
The contactors are finger-safe according to EN 50274
(exception: series resistor). Terminal covers may have to be
fitted onto the connecting bars, depending on the configuration
with other devices.
■
Application
For operation in plants which are subject both to considerable
variations in the control voltage and to high ambient
temperatures, e.g. in railway applications.
■
Selection and ordering data
3
With screw terminals
3TC44: for screw and snap-on mounting onto 35 mm standard mounting rail
3TC48 to 3TC56: for screw fixing
Solenoid fitted with varistor
3TC48
Size
Utilization
category
Rated
operational
current
I
e
at
750 V
A
Rating of AC loads at
Auxiliary Rated control DT Order No.
contacts
1)
supply
voltage
U
s
kW
NO
NC V DC
Price
per PU
PU
PS*
(UNIT,
SET, M)
PG
Weight
per PU
approx.
kg
220 V 440 V 600 V 750 V
kW
kW
kW
Contactors for switching DC voltage
¼
DC operation · DC solenoid system
2
4
8
12
DC-1
DC-3/DC-5
DC-1
DC-3/DC-5
DC-1
DC-3/DC-5
DC-1
DC-3/DC-5
32
7.5
75
75
170
170
400
400
7
5
16.5
13
48
41
88
70
14
9
33
27
97
82
176
140
19.2
9
45
38
132
110
240
200
24
4
56
45
165
110
300
250
2
2
2
2
1
1
1
1
24
110
24
110
24
110
24
110
B
C
C
C
C
C
C
C
3TC44 17-0LB4
3TC44 17-0LF4
3TC48 17-0LB4
3TC48 17-0LF4
3TC52 17-0LB4
3TC52 17-0LF4
3TC56 17-0LB4
3TC56 17-0LF4
1 1 unit
1 1 unit
1 1 unit
1 1 unit
1 1 unit
1 1 unit
1 1 unit
1 1 unit
101
101
101
101
101
101
101
101
1.321
1.310
4.857
3.710
10.722
10.830
24.150
18.190
1) The number of auxiliary contacts cannot be increased.
* You can order this quantity or a multiple thereof.
3/74
Siemens LV 1 · 2006
3RT, 3RH, 3TB, 3TC, 3TH, 3TK Contactors for Special Applications
3TC Contactors for Switching DC Voltage
1- and 2-pole, 32 ... 400 A
■
Overview
3TC4 and 3TC5
EN 60947-4-1 (VDE 0660 Part 102)
The contactors are finger-safe according to EN 50274.
Terminal covers may have to be fitted onto the connecting bars,
depending on the configuration with other devices.
The DC motor ratings given in the tables are applicable to the
DC-3 and DC-5 utilization categories with two-pole switching of
the load or with the two conducting paths of the contactor
connected in series.
One contactor conducting path can switch full power up to
220 V. The ratings for higher voltages are available on request.
3TC7
EN 60947-4-1 (VDE 0660 Part 102).
The contactors are suitable for use in any climate. They are
suitable for switching and controlling DC motors as well as all
other DC loads. The electromagnetic excitation is designed for
a particularly wide coil operating range.
It is between 0.7 or 0.8 to 1.2
U
s
.
3TC74 contactors can be used at up to 750V/400A and 50 Hz in
AC-1 operation.
■
Application
The contactors are suitable for switching and controlling DC
motors as well as all other DC circuits.
A version with an especially large operating range is available
for use in electrically driven vehicles and in switchgear with
significant fluctuations in the operating voltage (see page 3/74).
Siemens LV 1 · 2006
3/75
3
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