SIEMENS
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Siemens IC 10 · 2017
Contactors for Special Applications
3TK1 contactors for resistive loads (AC-1), 4-pole
4
■
Overview
Standards
IEC 60947-1, EN 60947-1,
IEC 60947-4-1, EN 60947-4-1,
IEC 60947-5-1, EN 60947-5-1 (auxiliary switches)
The contactors also comply with the requirements of the
NFC 63-110 and NFC 20–040 standards.
The contactors are suitable for use in any climate. They are
finger-safe according to IEC
60529. Terminal covers may have to
be fitted onto the connecting bars, depending on the configura-
tion with other devices.
The contactors are used mainly for resistive loads (AC-1 and
p.f.
0.95). They are also suitable for switching mixed loads in
distribution systems (e. g. for supplying heaters, lamps, motors,
PC power supply units) with p.f.
according to
IEC 60947-4-1; test conditions for utilization category AC-1.
Control circuit
The solenoid coils of the 3TK10 to 3TK13 contactors
(operating current up to 350 A) are designed as plug-in coils.
Surge suppression
The solenoid coils of the 3TK1 contactors can be connected at
a later stage with RC circuits,
(see Accessories, page 4/53)
.
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Technical specifications
More information
Technical specifications,
see
FAQs,
Manuals,
see
Type
3TK1
Rated data of the auxiliary contacts
General data
Standards
IEC 60947-5-1
Rated insulation voltage
U
i
(pollution degree 3)
V
690
Conventional thermal current
I
th
=
rated operational current
I
e
/AC-12
A
10
Load rating with AC
Rated operational current
I
e
/AC-15/AC-14
• For rated operational voltage
U
e
24 V
A
6
110 V
A
6
125 V
A
6
220 V
A
6
230 V
A
6
380 V
A
4
400 V
A
4
500 V
A
1
660 V
A
1
690 V
A
1
Load rating with DC
Rated operational current
I
e
/DC-12
--
Rated operational current
I
e
/DC-13
• For rated operational voltage
U
e
24 V
A
6
60 V
A
6
110 V
A
1.8
125 V
A
--
220 V
A
0.6
440 V
A
--
600 V
A
--
s
and
u
rated data of the auxiliary contacts
Rated voltage, max.
V AC
600
Switching capacity
A 600, P 600
© Siemens AG 2016