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
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SIEMENS [ Siemens Semiconductor Group ]
