Contactors and Contactor Assemblies
SIRIUS
Contactors for Switching Motors
3RT14 contactors, 3-pole,
for switching resistive loads (AC-1)
Technical data
Contactor
Size
Type
S3
3RT14 46
General data
AC and DC operation
Permissible mounting position
The contactors are designed for operation
on a vertical mounting surface.
For DC operation and forward
inclination up to 22.5°:
coil voltage tolerance 0.85 ... 1.1 ×
Us
Upright mounting position:
AC operation
Special design required.
Positions 13 ... 16 of the Order No. must be changed to -1AA0.
Additional charge.
–
DC operation
Mechanical endurance
Oper. 10 million
cycles
Electrical endurance
AC-1 utilization category at Ie
Oper.
cycles
Rated insulation voltage Ui (pollution degree 3)
V
Rated impulse withstand voltage Uimp
kV
Safe isolation between coil and main contacts
(acc. to DIN VDE 0106 Part 101 and A1 [draft 2/89])
V
in operation
when stored
Permissible ambient temperature
°C
°C
Degree of protection acc. to IEC 60 947-1 and DIN 40 050
0.5 million
1000
6
690
–25 ... +60
–55 ... +80
IP 20 (terminal compartment IP 00), coil system IP 40
Shock resistance
Rectangular pulse
AC and DC operation
g/ms
6.8/5 and 4/10
Sine pulse
AC and DC operation
g/ms
10.6/5 and 6.2/10
See page 2/143
Conductor cross-sections
Short-circuit protection of contactors without overload relays
Main circuit
Fuse links, utilization category gL/gG
NH, Type 3NA
Type of coord. "1" 2)
A
250
Fuse links, utilization category gR
SITOR, Type 3NE
Type of coord. "2" 2)
A
250
A
10
A
10
Auxiliary circuit
Fuse links, utilization category gL/gG (weld-free protection at Ik
DIAZED Type 5SB, NEOZED Type 5SE
or miniature circuit-breaker with C-characteristic (Ik < 400 A)
1 kA)
Control circuit
0.8 ... 1.1 × Us
AC/DC
Coil voltage tolerance
Power consumption of the coils (with coil in cold state and 1.0 × Us)
Standard design
For USA and Canada
Hz
50
50/60
50
60
closing
p.f.
closed
p.f.
VA
270
0.68
22
0.27
298 /274
0.7 / 0.62
27 / 20
0.29/ 0.31
270
0.68
22
0.27
300
0.52
21
0.29
closing = closed
W
15
AC operation
DC operation
VA
Operating times at 0.8 ... 1.1 × Us 1)
Break-time = opening time + arcing time
AC operation
closing time
opening time
ms
ms
17 ... 90
10 ... 25
DC operation
closing time
opening time
ms
ms
90 ... 230
14 ... 20
ms
10 ... 15
Arcing time
Operating times at 1.0 × Us 1)
AC operation
closing time
opening time
ms
ms
18 ... 30
11 ... 23
DC operation
closing time
opening time
ms
ms
100 ... 120
16 ... 20
1) The opening times of the NO contacts and the
closing times of the NC contacts increase if the
contactor coils are protected against voltage
peaks: varistor +2 ms to 5 ms, diode assemblies 2 to 6 times.
Siemens Industry, Inc.
Industrial Controls Catalog
2) According to excerpt from
IEC 60 947-4-1 (VDE 0660 Part 102):
Type of coordination "1":
Destruction of the contactor and the overload
relay is permissible. The contactor and/or overload relay must be replaced if necessary.
Type of coordination "2":
No damage can be tolerated to the overload
relay, but contact welding on the contactor is
permitted if the contacts can be easily separated.
2/123
Contactors and Contactor Assemblies
Contactors for Special Applications
SIRIUS
3RT14 contactors, 3-pole,
for switching resistive loads (AC-1)
Technical data
Contactor
Size
Type
S3
3RT14 46
Main circuit
Load ratings with AC
AC-1 utilization category, switching resistive load
Rated operational currents Ie
at 40 °C up to 690 V
at 60 °C up to 690 V
at 1000 V
at 230 V
400 V
500 V
690 V
1000 V
at 40 °C
at 60 °C
Ratings
of three-phase loads
p.f. = 0.95 (at 60 °C)
Minimum conductor cross-section with Ie load
AC-2 and AC-3 utilization categories
With an electrical endurance of 1.3 million operating cycles
Rated operational current Ie
Ratings of slipring or squirrel-cage
motors at 50 Hz and 60 Hz (at 60 °C)
Power loss per conducting path
up to 690 V
at 230 V
400 V
500 V
690 V
at Ie/AC-1
A
A
A
kW
kW
kW
kW
kW
mm2
mm2
140
130
60
50
86
107
148
98
50
50
A
kW
kW
kW
kW
44
12.7
22
29.9
38.2
W
12.5
Load ratings with DC
DC-1 utilization category, switching resistive load L/R 1 ms)
Number of conducting paths when connected in series
Rated operational currents Ie (at 60 °C)
up to 24 V
60 V
110 V
220 V
440 V
600 V
A
A
A
A
A
A
DC-3 and DC-5 utilization categories, shunt and series motors
Number of conducting paths when connected in series
Rated operational currents Ie (at 60 °C)
up to 24 V
60 V
110 V
220 V
440 V
600 V
A
A
A
A
A
A
1
2
3
130
80
12
2.5
0.8
0.48
130
130
130
13
2.4
1.3
130
130
130
130
6
3.4
1
2
3
130
130
130
1.75
0.42
0.27
130
130
130
4
0.8
0.45
6
3
1.25
0.35
0.15
0.1
Operating frequency
Operating frequency z in operating cycles per hour
Contactors without overload relays
Rated operation
No-load operating frequency
for AC-1
for AC-3
1/h
AC operation
5000
DC operation
1000
1/h
1/h
650
1000
650
1000
Dependence of the operating frequency z’ on the
operational current I’ and the operational voltage U’:
Ie
z’ = z ---I
2/124
400 V
---------U
1.5
1/h
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Contactors and Contactor Assemblies
Contactors for Special Applications
3RT14 contactors, 3-pole,
for switching resistive loads (AC-1)
Siemens Industry, Inc.
Industrial Controls Catalog
2/125
Contactors and Contactor Assemblies
Contactors for Special Applications
SIRIUS
3RT14 contactors, 3-pole,
for switching resistive loads (AC-1)
Technical data
Contactor
Size
Type
S6
3RT14 56
General data
Permissible mounting position
The contactors are designed for operation
on a vertical mounting surface.
Electrical endurance
AC-1 utilization category at Ie
Oper. 10 million
cycles
Oper.
0.5 million
cycles
Rated insulation voltage Ui (pollution degree 3)
V
Rated impulse withstand voltage Uimp
kV
Safe isolation between coil, auxiliary contacts and main contacts
(acc. to DIN VDE 0106 Part 101 and A1 [draft 2/89])
V
Mechanical endurance
in operation
when stored
Permissible ambient temperature
8
690
°C
°C
–25 ... +60/+55 with AS-Interface
–55 ... +80
IP 00/open type, coil system IP 20
g/ms
g/ms
8.5/5 and 4.2/10
13.4/5 and 6.5/10
See page 2/132
Degree of protection acc. to IEC 60 947-1 and DIN 40 050
Shock resistance
Rectangular pulse
Sine pulse
Conductor cross-sections
1000
See page 2/14
Electromagnetic compatibility (EMC)
Short-circuit protection
Main circuit
Fuse links, utilization category gL/gG,
Type of coordination "1" A
NH, Type 3NA
Fuse links, utilization category gR,
SITOR, Type 3NE
Type of coordination "2" A
Auxiliary circuit
A
Fuse links, utilization category gL/gG
(weld-free protection at Ik 1 kA)
DIAZED Type 5SB, NEOZED Type 5SE
or miniature circuit-breaker with C-characteristic (Ik < 400 A)
355
350
10
Control circuit
0.8 × Us min ... 1.1 × Us max
AC/DC (UC)
Coil voltage tolerance
Power consumption of solenoid mechanism
(with coil in cold state and rated range Us min ... Us max)
AC operation
DC operation
closing
p.f.
closed
p.f.
VA
closing
closed
W
W
VA
Conventional op. mechanism
Us min
Us max
Solid-state op. mechanism
Us min
Us max
250
0.9
4.8
0.8
300
0.9
5.8
0.8
190
0.8
3.5
0.5
280
0.8
4.4
0.4
300
4.3
360
5.2
250
2.3
320
2.8
PLC control input (EN 61 131-2/Type 2)
DC 24 V/ 30 mA
Operating times
(Break-time = opening time + arcing time)
Conventional op. mechanism
– at 0.8 × Us min ... 1.1 × Us max
closing time
opening time
ms
ms
20 ... 95
40 ... 60
Solid-state op. mechanism
Operation via
A1/A2
PLC input
95 ... 135
35 ... 75
80 ... 90
80 ... 90
– at Us min ... Us max
closing time
opening time
ms
ms
25 ... 50
40 ... 60
100 ... 120
80 ... 90
40 ... 60
80 ... 90
ms
10 ... 15
10 ... 15
10 ... 15
A
A
A
kW
kW
kW
kW
kW
mm2
mm2
275
250
100
95
165
205
285
165
2 × 70
120
W
20
Arcing time
Main circuit
Load ratings with AC
AC-1 utilization category, switching resistive load
Rated operational currents Ie
Ratings
of three-phase loads
p.f. = 0.95 (at 60 °C)
Minimum conductor cross-section with Ie load
Power loss per conducting path
2/126
at 40 °C up to 690 V
at 60 °C up to 690 V
at 1000 V
at 230 V
400 V
500 V
690 V
1000 V
at 40 °C
at 60 °C
at Ie/AC-1
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Contactors and Contactor Assemblies
Contactors for Special Applications
3RT14 contactors, 3-pole,
for switching resistive loads (AC-1)
Siemens Industry, Inc.
Industrial Controls Catalog
2/127
Contactors and Contactor Assemblies
Contactors for Special Applications
SIRIUS
3RT14 contactors, 3-pole,
for switching resistive loads (AC-1)
Technical data
Contactor
Size
Type
S10
3RT14 66
S12
3RT14 76
General data
Permissible mounting position
The contactors are designed for operation
on a vertical mounting surface.
Mechanical endurance
Oper. 10 million
cycles
Electrical endurance
AC-1 utilization category at Ie
Oper.
cycles
Rated insulation voltage Ui (pollution degree 3)
V
Rated impulse withstand voltage Uimp
kV
Safe isolation between coil, auxiliary contacts and main contacts
(acc. to DIN VDE 0106 Part 101 and A1 [draft 2/89])
V
in operation
when stored
Permissible ambient temperature
1000
8
690
°C
°C
–25 ... +60/+55 with AS-Interface
–55 ... +80
IP 00/open type, coil system IP 20
g/ms
g/ms
8.5/5 and 4.2/10
13.4/5 and 6.5/10
See page 2/135
Degree of protection acc. to IEC 60 947-1 and DIN 40 050
Shock resistance
Rectangular pulse
Sine pulse
Conductor cross-sections
0.5 million
See page 2/14
Electromagnetic compatibility (EMC)
Short-circuit protection
Main circuit
Fuse links, utilization category gL/gG,
NH, Type 3NA
Fuse links, utilization category gR,
SITOR, Type 3NE
Type of coordination "1"
A
500
800
Type of coordination "2"
A
500
710
A
10
Auxiliary circuit
Fuse links, utilization category gL/gG
(weld-free protection at Ik 1 kA)
DIAZED Type 5SB, NEOZED Type 5SE
or miniature circuit-breaker with C-characteristic (Ik < 400 A)
Contactor
Size
Type
S10
3RT14 66
Control circuit
0.8 × Us min ... 1.1 × Us max
AC/DC (UC)
Coil voltage tolerance
Power consumption of solenoid mechanism
(with coil in cold state and rated range Us min ... Us max)
AC operation
DC operation
closing
p.f.
closed
p.f.
VA
closing
closed
W
W
VA
Conventional op. mechanism
Us min
Us max
Solid-state op. mechanism
Us min
Us max
490
0.9
5.6
0.9
590
0.9
6.7
0.9
400
0.8
4
0.5
530
0.8
5
0.4
540
6.1
650
7.4
440
3.2
580
3.8
PLC control input (EN 61 131-2/Type 2)
DC 24 V/ 30 mA
Operating times
(Break-time = opening time + arcing time)
Conventional op. mechanism
– at 0.8 × Us min ... 1.1 × Us max
closing time
opening time
ms
ms
30 ... 95
40 ... 80
Solid-state op. mechanism
Operation via
A1/A2
PLC input
105 ... 145
45 ... 80
80 ... 200
80 ... 100
– at Us min ... Us max
closing time
opening time
ms
ms
35 ... 50
50 ... 80
110 ... 130
80 ... 100
50 ... 65
80 ... 100
ms
10 ... 15
10 ... 15
10 ... 15
Arcing time
2/128
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Contactors and Contactor Assemblies
Contactors for Special Applications
3RT14 contactors, 3-pole,
for switching resistive loads (AC-1)
Siemens Industry, Inc.
Industrial Controls Catalog
2/129
Contactors and Contactor Assemblies
Contactors for Special Applications
SIRIUS
3RT14 contactors, 3-pole,
for switching resistive loads (AC-1)
2/130
Siemens Industry, Inc.
Industrial Controls Catalog