SIEMENS
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Siemens IC 10 · 2017
Switching Devices – Contactors and Contactor Assemblies
Contactors for Special Applications
Introduction
4
Note:
For safety characteristics for contactors,
see
"Standards and Approvals", from page 16/10 onwards
.
Further contactors
•
For SIRIUS 3RT26 contactors for capacitive loads (AC-6b),
3-pole,
see page 4/26
•
For 3TC contactors for switching DC voltage, 1 and 2-pole,
see page 4/75
Contactors for railway applications
•
For SIRIUS 3RT contactors with extended operating range,
3-pole,
see page 4/62
•
For SIRIUS 3RH2 contactor relays with extended operating
range,
see page 4/68
•
For 3TH4 contactor relays, 8-pole,
see page 4/71
•
For 3TC contactors for switching DC voltage, 2-pole,
see page 4/73
Connection methods
The contactors are available with screw terminals (box terminals
or flat connectors) or with spring-type terminals.
Devices of the 3TK2 series are also available for connection with
flat connectors and solder pin connectors.
Use of 3RT contactors with IE3/IE4 motors
Note:
When using 3RT contactors (exception: 3RT26) in conjunction
with highly energy-efficient IE3/IE4 motors, please observe the
information on dimensioning and configuring;
see
Application Manual "SIRIUS Controls with IE3/IE4 Motors",
.
For more information
see Preface, page 7
.
Size
Type
--
3TK1.
00
3TK20
4-pole 3TK contactors
Type
3TK10
3TK11
3TK12
3TK13
3TK14
3TK15
3TK17
3TK20
Number of main contacts
4 NO
4
AC, DC operation
(p. 4/52)
(p. 4/60, 4/61)
AC-1
(40 °C,
690 V)
I
e
A
200
250
300
350
550
800
1 000
18
P
at 400 V
kW
132
165
197
230
362
527
658
10
At 230 V
At 500 V
At 690 V
kW
kW
kW
76
165
227
95
206
284
114
247
341
132
288
397
308
452
624
303
658
908
378
828
1 135
6
13
17
AC-2 and AC-3
I
e
/400 V
A
120
145
210
210
400
550
700
8.4
P
at 400 V
kW
55
75
110
110
200
280
370
4
At 127 V
At 230 V
At 500 V
At 690 V
kW
kW
kW
kW
--
30
--
--
--
45
--
--
--
75
--
--
--
75
--
--
--
110
--
--
--
160
--
--
--
220
--
--
1.4
2.5
4
4
Accessories for contactors
Auxiliary switch blocks
Lateral
3TK1910
(p. 4/53)
--
Terminal covers
3TK1940
(p. 4/53)
3TK1942
(p. 4/53)
3TK1944
(p. 4/53)
3TK1946
(p. 4/53)
--
Surge suppressors
3TK1930
(p. 4/53)
3TK1934
(p. 4/53)
3TX4490
(p. 3/150)
Screw terminals
Spring-type terminals
Flat connectors
Solder pin connections
The terminals are indicated in the corresponding
tables by the symbols shown on orange backgrounds.
© Siemens AG 2016