3RT, 3RH, 3TB, 3TC, 3TH, 3TK Contactors for Special Applications
Contactors with Extended Tolerance 0.7 ... 1.25 x , for Railway Applications
U
s
3TB5 motor contactors, 55 ... 200 kW
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■
Overview
■
Application
EN 60947-4-1.
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.
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.
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
Auxiliary
contacts
Rated control supply DT Order No.
Price
per PU
PU
(UNIT,
SET, M)
PS*
PG
Weight
per PU
approx.
1)
voltage U
s
Opera-
tional
current I
at
Ratings of induction motors
at
e
400 V
A
230 V 400 V 500 V 690 V
kW
kW
kW
kW
NO
NC
V DC
kg
Contactors for switching AC voltage ·
DC operation · DC solenoid system
6
110
170
250
400
37
55
75
90
2
2
2
2
1
1
1
1
24
C
C
3TB50 17-0LB4
3TB50 17-0LF4
1
1
1 unit
101
6.674
110
1 unit
101
6.640
8
55
90
110
160
255
132
200
355
24
110
C
C
3TB52 17-0LB4
3TB52 17-0LF4
1
1
1 unit
1 unit
101
101
9.250
9.222
10
12
75
132
200
24
110
C
C
3TB54 17-0LB4
3TB54 17-0LF4
1
1
1 unit
1 unit
101 16.800
101 8.845
115
110
C
3TB56 17-0LF4
1
1 unit
101 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
SIEMENS [ Siemens Semiconductor Group ]
