Controls –
Contactors and
Contactor Assemblies
3
3RH, 3TH Contactor Relays
3RH1 contactor relays, 4- and 8-pole
3RH14 latched contactor relays,
4-pole
3TH4 contactor relays, 8- and 10-pole
3TH2 contactor relays, 4- and 8-pole
3RH11 coupling relays for switching
auxiliary circuits, 4-pole
3RT Coupling Relays
3RT10 coupling relays (interface),
for switching motors, 3-pole,
3 ... 11 kW
3TX7, 3RS18 Coupling Relays
3TX7 Coupling Relays, Narrow
Design
Relay couplers
Relay couplers with plug-in design
Semiconductor couplers
3RS18 Coupling Relays with Industrial
Housing
Relay couplers
LZX Plug-in Relays
Relay couplers
3TG10 Power Relays/Miniature
Contactors
4-pole, 4 kW
Accessories and Spare Parts
for 3RT, 3RH Contactors and Contactor
Relays
Accessories for 3RT, 3RH contactors
and contactor relays
Spare parts for 3RT, 3RH contactors
and contactor relays
for 3T Contactors and Contactor
Relays
Accessories for 3TB, 3TC, 3TF,
3TG, 3TK contactors
Accessories for 3TH contactor relays
Spare parts for 3TB, 3TC,
3TF, 3TK contactors
3/2
Introduction
3RT, 3TB, 3TF Contactors
for Switching Motors
General data
3RT10 contactors, 3-pole, 3 ... 250 kW
3RT12 vacuum contactors, 3-pole,
110 ... 250 kW
3TF6 vacuum contactors, 3-pole,
335 ... 450 kW
3TB5 contactors with DC solenoid
system, 3-pole, 55 ... 200 kW
3TF2 contactors, 3-pole, 2.2 ... 4 kW
3RA13, 3RA14 Contactor Assemblies
3RA13 Reversing Contactor Assemblies
3RA13 complete units, 3 ... 45 kW
Components for customer assembly
3RA14 Contactor Assemblies for
Wye-Delta Starting
3RA14 complete units, 3 ... 75 kW
Components for customer assembly
3TD, 3TE Contactor Assemblies
3TD6 reversing contactor assemblies,
335 kW
3TE6 contactor assemblies for
wye-delta starting, 630 kW
3RT, 3RH, 3TB, 3TC, 3TH, 3TK
Contactors for Special Applications
3RT14 Contactors for Switching
Resistive Loads (AC-1)
3-pole, 140 ... 690 A
3RT13 Contactors for Switching
Resistive Loads (AC-1)
4-pole, 4 NO, 18 ... 140 A
3TK1 Contactors for Switching
Resistive Loads (AC-1)
4-pole, 4 NO, 200 ... 1000 A
3TK20 Contactors
4-pole, 4 kW
3RT15 Contactors
4-pole, 2 NO + 2 NC, 4 ... 18.5 kW
3RT16 Capacitor Contactors
12.5 ... 50 kvar
Contactors with Extended
Tolerance 0.7 ... 1.25 ×
U
s
, for
Railway Applications
3RH11 contactor relays
3TH4 contactor relays
3RT10 motor contactors, 5.5 ... 45 kW
3TB5 motor contactors, 55 ... 200 kW
3TC contactors for switching
DC voltage, 2-pole
3TC Contactors for Switching DC
Voltage
1- and 2-pole, 32 ... 400 A
3/78
3/82
3/83
3/85
3/88
3/4
3/8
3/30
3/31
3/34
3/35
3/90
3/38
3/43
3/46
3/53
3/54
3/55
3/95
3/97
3/99
3/101
3/102
3/106
3/56
3/58
3/107
3/126
3/61
3/62
3/64
3/66
3/134
3/139
3/142
3/67
3/68
3/69
3/73
3/74
3/75
Siemens LV 1 · 2006
Controls — Contactors and Contactor Assemblies
Introduction
■
Overview
3
Size
Type
Type
AC, DC operation
Type
AC-3
I
e
/AC-3/400 V
400 V
230 V
500 V
690 V
1 000 V
A
kW
kW
kW
kW
kW
kW
kW
7
3
2.2
3.5
4
--
3
1.15
9
4
3
4.5
5.5
--
4
2
12
5.5
3
5.5
5.5
--
4
2
9
4
3
4.5
5.5
--
4
2
12
5.5
3
7.5
7.5
--
5.5
2.6
17
7.5
4
10
11
--
7.5
3.5
25
11
5.5
11
11
--
7.5
4.4
32
15
7.5
18.5
18.5
--
15
8.2
40
18.5
11
22
22
--
18.5
9.5
50
22
15
30
22
--
22
12.6
S00
3RT10 1
3RT10 15 3RT10 16
(p. 3/12, 3/20)
--
S0
3RT10 2
3RT10 17 3RT10 23 3RT10 24
(p. 3/14, 3/22)
--
S2
3RT10 3
3RT10 25 3RT10 26 3RT10 34 3RT10 35
(p. 3/16, 3/24)
--
3RT10 36
3RT10 contactors
3RT12 and 3TF68/69 vacuum contactors
3RT10/12
3RT10/12
AC-4
(for
I
a
= 6 x
I
e
)
400 V
400 V
3RT10/12
(200 000 operating cycles)
AC-1
(40 °C,
690 V)
I
e
3RT10/12
A
18
22
22
40
40
40
40
50
60
60
3RT14 AC-1 contactors
Type
I
e
/AC-1/40 °C/
690 V
A
--
--
--
--
--
--
Accessories for contactors
Auxiliary switch blocks
front
lateral
Terminal covers
Box terminal blocks
Surge suppressors
3RH19 11
--
--
--
3RT19 16
(p. 3/110)
3RH19 21
3RH19 21
--
--
(p. 3/119)
3RT19 26
(p. 3/119)
(p. 3/110)
(p. 3/114)
3RT19 36-4EA2
--
3RT19 26/36
(p. 3/119)
(p. 3/124)
3RU1 and 3RB2 overload relays (protection equipment: overload relays)
3RU11,
thermal, CLASS 10
3RB20/21,
solid-state,
CLASS 5, 10, 20 and 30
3RB22/23,
solid-state,
CLASS 5, 10, 20 and 30
Type
Link modules
3RU11 16
3RB20 16
3RB21 16
0.1 ... 12 A
0.1 ... 12 A
(Chap. 5)
3RU11 26
(Chap. 5)
3RB20 26
3RB21 26
(Chapter 5)
(Chap. 5)
3RV10 21
(Chap. 5)
3RA19 21
9 ... 25 A
(Chapter 5)
(Chapter 5)
1.8 ... 25 A (Chapter 5)
3 ... 25 A
(Chapter 5)
3RU11 36
3RB20 36
3RB21 36
5.5 ... 50 A (Chapter 5)
6 ... 50 A
(Chapter 5)
3RB2. 83 + 3RB29 06
0.3 ... 25 A
3RV10 11
3RA19 11
0.18 ... 12 A
3RB2. 83 + 3RB29 06
10 ... 100 A (Chapter 5)
3RV10 31
3RA19 31
22 ... 50 A (Chapter 5)
(Chapter 5)
3RV10 motor starter protectors (protection equipment: circuit-breakers)
3RA13 reversing contactor assemblies
Complete units
400 V
Mechanical interlocks
Type
3RA13 15
(p. 3/39)
kW
3
3RA13 16
4
3RA13 17
5.5
(p. 3/44)
(p. 3/45)
3RA13 24 3RA13 25 3RA13 26 3RA13 34
(p. 3/40)
(p. 3/41)
5.5
3RA19 23-2A
3RA19 24-1A/-2B
7.5
(p. 3/44)
(p. 3/43)
11
15
3RA13 35 3RA13 36
18.5
22
(p. 3/44)
Installation kits/wiring connectors 3RA19 13-2A
3RA19 12-2H
3RA19 33-2A
3RA14 contactor assemblies for wye-delta starting
Complete units
400 V
Type
3RA14 15
(p. 3/48)
kW
5.5
3RA14 16
7.5
(p. 3/53)
3RA14 23
(p. 3/49)
11
3RA19 23-2B
3RA14 25
15/18.5
(p. 3/53)
3RA14 34
(p. 3/50)
22/30
3RA14 35 3RA14 36
(p. 3/51)
37
45
(p. 3/53)
Installation kits/wiring connectors 3RA19 13-2B
3RA19 33-2B/-2C
3/2
Siemens LV 1 · 2006
Controls — Contactors and Contactor Assemblies
Introduction
S3
3RT1. 4
3RT10 44 3RT10 45
(p. 3/18, 3/24)
--
3RT10 46
S6
3RT1. 5
3RT10 54 3RT10 55
(p. 3/26)
--
3RT10 56
S10
3RT1. 6
S12
3RT1. 7
14
3TF6
--
3TF68
(p. 3/32)
630
335
200
434
600
600
355
168
3TF69
3RT10 64 3RT10 65 3RT10 66 3RT10 75 3RT10 76
(p. 3/26)
(p. 3/26)
3RT12 64 3RT12 65 3RT12 66 3RT12 75 3RT12 76
(p. 3/30)
(p. 3/30)
65
30
18.5
37
45
30
30
15.1
80
37
22
45
55
37
37
17.9
95
45
22
55
55
37
45
22
115
55
37
75
110
75
55
29
150
75
45
90
132
90
75
38
185
90
55
110
160
90
90
45
225
110
55
160
200
90/315
110
54/78
265
132
75
160
250
132/355
132
66/93
300
160
90
200
250
132/400
160
71/112
400
200
132
250
400
250/560
200
84/140
500
250
160
355
400/500
250/710
250
98/161
820
450
260
600
800
800
400
191
100
120
120
160
185
215
275/330
330
330
430/610
610
700
910
3RT14 46
140
(p. 3/56)
3RT14 56
275
(p. 3/57)
3RT14 66
400
(p. 3/57)
3RT14 76
(p. 3/57)
690
--
--
--
3TY7 561
3RT19 46-4EA1/2
--
(p. 3/124)
3RT19 56-4EA1/2/3
3RT19 55/56-4G
(p. 3/124)
(p. 3/124)
3RT19 66-4EA1/2/3
(p. 3/124)
3RT19 66-4G
(p. 3/124)
--
3TX7 572
(p. 3/135)
3TX7 686/696
(p. 3/135)
(p. 3/134)
3RT19 56-1C
(RC element) (p. 3/120)
3RU11 46
18 ... 100 A (Chapter 5)
3RB20 46
12.5 ... 100 A (Chap. 5)
3RB21 46
--
--
--
--
160 ... 630 A
(Chapter 5)
3RB20 56
50 ... 200 A (Chapter 5)
3RB20 66
55 ... 630 A
3RB21 56
3RB21 66
(Chapter 5)
3RB20 66
160 ... 630 A
3RB20 66
3RB21 66
(Chapter 5)
3RB21 66
3RB2. 83 + 3RB29 56
3RB2. 83 + 3RB29 66
20 ... 200 A (Chapter 5)
63 ... 630 A (Chapter 5)
3RV10 41
45 ... 100 A (Chapter 5)
--
--
--
--
--
--
--
--
3RA19 41
(Chapter 5)
3RA13 44 3RA13 45
(p. 3/42)
30
37
3RA19 43-2A
3RA13 46
45
(p. 3/44)
--
55
75
90
(p. 3/44)
(p. 3/43)
--
110
132
160
(p. 3/44)
--
200
250
3TD68 04
(p. 3/54)
335
3TX7 680-1A
3TX7 686-1A
3RA19 53-2A
3RA19 54-2A
3RA19 63-2A
3RA19 73-2A
(p. 3/44)
3RA14 44 3RA14 45
(p. 3/52)
55
75
(p. 3/53)
3RA19 43-2B/-2C
--
--
3RA19 53-2B
(p. 3/53)
--
--
3RA19 63-2B
(p. 3/53)
--
--
3RA19 73-2B
(p. 3/53)
3TE68 04
(p. 3/55)
630
3TX7 680-1B
Siemens LV 1 · 2006
3/3
3
3RT, 3TB, 3TF Contactors for Switching Motors
General data
■
Overview
3RT1 contactors and coupling relays
Size S00 with mountable accessories
The SIRIUS generation of
controls is a complete,
modular system family,
logically designed right
down to the last detail,
from the basic units to the
accessories.
3
4
17
18
3
5
12
1
6
7
19
20
13
2
8
9
10
11
14
15
16
NSB00448
1
2
3
4
5
6
7
8
9
10
11
12
13
Contactor (page 3/12)
Coupling relay (page 3/90)
Solid-state time-delay block, ON-delay (page 3/118)
Solid-state time-delay block, OFF-delay (page 3/118)
Auxiliary switch block, solid-state time-delay (page 3/117)
(ON or OFF-delay or wye-delta function)
Single-pole auxiliary switch block, cable entry from above (page 3/110)
2-pole auxiliary switch block, cable entry from above (page 3/110)
Single-pole auxiliary switch block, cable entry from below (page 3/110)
2-pole auxiliary switch block, cable entry from below (page 3/110)
4-pole auxiliary switch block (page 3/110) (terminal designations
according to EN 50012 or EN 50005)
2-pole auxiliary switch block, standard design or solid-state compatible
design (pages 3/110, 3/117) (terminal designations according to
EN 50005)
Solder pin adapter for contactors with 4-pole auxiliary switch block
(page 3/123)
Solder pin adapter for contactors and coupling relays (page 3/122)
14
Additional load module for increasing the permissible residual current
(page 3/121)
15
Surge suppressor with LED (page 3/120)
16
Surge suppressor without LED (page 3/120)
17
3-phase feeder terminal (page 3/53)
18
Link for paralleling (star jumper), 3-pole,
without terminal (page 3/53)
19
Link for paralleling, 3-pole, with terminal (page 3/123)
20
Link for paralleling, 4-pole, with terminal (page 3/123)
For contactors
For contactors and coupling relays (interface)
For contactor assemblies see pages 3/38 to 3/45
Assembly kit for reversing contactor assemblies
(mech. interlocking, wiring modules) see page 3/44
For mountable overload relays see Protection Equipment:
Overload Relays
For fuseless load feeders, see Load Feeders, Motor Starters and
Soft Starters -> 3RA Fuseless Load Feeders
3/4
Siemens LV 1 · 2006
3RT, 3TB, 3TF Contactors for Switching Motors
General data
3RT1 contactors
Sizes S0 to S3 with mountable accessories
4
5
18
17
21
11
10
25
12
1
16
2
14
1
6
9
15
7
8
16
13
22
23
20
24
3
21
19
1
2
3
Contactor, size S0, see page 3/14
Contactor, size S2, see page 3/16
Contactor, size S3, see page 3/18
18
Interface for mounting directly onto contactor coil (page 3/122)
19
LED module for indicating contactor operation (page 3/122)
Only for size S0:
25
Pneumatic delay block (page 3/118)
Only for sizes S0 and S2:
20
Mechanical latching
Only for sizes S2 and S3:
21
Repeat coil terminal for making contactor assemblies (page 3/43)
22
Terminal cover for box terminals (page 3/124)
Only for size S3:
23
Terminal cover for cable lug and bar connection (page 3/124)
24
Auxiliary conductor terminal, 3-pole (page 3/122)
Accessories identical for sizes S0 to S3
Accessories differ according to size
For sizes S0 to S3:
4
Solid-state time-delay block, ON-delay (page 3/118)
5
Solid-state time-delay block, OFF-delay (page 3/118)
6
Auxiliary switch block, solid-state time-delay (page 3/117)
(ON or OFF-delay or wye-delta function)
7
2-pole auxiliary switch block, cable entry from above (page 3/112)
8
2-pole auxiliary switch block, cable entry from below (page 3/112)
9
4-pole auxiliary switch block (page 3/112)
(terminal designations according to EN 50012 or EN 50005)
10
Link for paralleling (star jumper), 3-pole, without terminal (page 3/53)
11
Link for paralleling, 3-pole, with terminal (page 3/123)
12
2-pole auxiliary switch block, laterally mountable (left or right)
(page 3/114) (terminal designations according to EN 50012 or EN 50005)
13
Single-pole auxiliary switch block (up to 4 can be snapped on)
(page 3/112)
14
Mechanical interlock, laterally mountable (page 3/43)
15
Mechanical interlock, mountable on the front (page 3/43)
16
Wiring connectors on the top and bottom (reversing duty) (page 3/45)
17
Surge suppressors (page 3/119) (varistor, RC element, diode assembly),
can be mounted on the top or bottom (different for S0 and S2/S3)
Siemens LV 1 · 2006
3/5
NSB0_00449a
3
22
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