Data sheet
3RT1055-2XJ46-0LA2
Traction contactor, AC-3 150 A, 75 kW / 400 V Coil 72 V DC x (0.7-1.25)
PLC input 24-110 V DC Auxiliary contacts 2 NO + 2 NC 3-pole size S6
Busbar connections Coil connection: Spring-type terminal
product brand name
SIRIUS
product designation
Contactor
design of the product
With extended operating range
product type designation
3RT1
General technical data
size of contactor
S6
product extension
● function module for communication
No
● auxiliary switch
Yes
power loss [W] for rated value of the current at AC in hot
operating state
● per pole
power loss [W] for rated value of the current without
load current share typical
27 W
9W
2.8 W
insulation voltage
● of main circuit with degree of pollution 3 rated value
1 000 V
● of auxiliary circuit with degree of pollution 3 rated
value
690 V
surge voltage resistance
● of main circuit rated value
8 kV
● of auxiliary circuit rated value
6 kV
maximum permissible voltage for safe isolation between
coil and main contacts acc. to EN 60947-1
690 V
shock resistance for railway applications acc. to DIN EN
61373
Category 1, Class B
shock resistance at rectangular impulse
● at DC
8,5g / 5 ms, 4,2g / 10 ms
shock resistance with sine pulse
● at DC
13,4g / 5 ms, 6,5g / 10 ms
mechanical service life (switching cycles)
● of contactor typical
10 000 000
● of the contactor with added electronically optimized
auxiliary switch block typical
5 000 000
● of the contactor with added auxiliary switch block
typical
10 000 000
reference code acc. to IEC 81346-2
Q
Substance Prohibitance (Date)
06.09.2016 00:00:00
Ambient conditions
installation altitude at height above sea level maximum
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2 000 m
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© Copyright Siemens
● ambient temperature during operation
-40 ... +70 °C
● ambient temperature during storage
-55 ... +80 °C
Main circuit
number of poles for main current circuit
3
number of NO contacts for main contacts
3
number of NC contacts for main contacts
0
● operating voltage at AC-3 rated value maximum
1 000 V
operational current
● at AC-1 at 400 V at ambient temperature 40 °C
rated value
185 A
● at AC-1
— up to 690 V at ambient temperature 40 °C
rated value
185 A
— up to 690 V at ambient temperature 60 °C
rated value
160 A
— up to 1000 V at ambient temperature 60 °C
rated value
90 A
● at AC-2 at 400 V rated value
150 A
● at AC-3
— at 400 V rated value
150 A
— at 500 V rated value
150 A
— at 690 V rated value
150 A
— at 1000 V rated value
65 A
● at AC-4 at 400 V rated value
132 A
minimum cross-section in main circuit
● at maximum AC-1 rated value
95 mm²
● at maximum Ith rated value
95 mm²
operational current for approx. 200000 operating
cycles at AC-4
● at 400 V rated value
68 A
● at 690 V rated value
57 A
operational current
● at 1 current path at DC-1
— at 24 V rated value
160 A
— at 110 V rated value
18 A
— at 220 V rated value
3.4 A
— at 440 V rated value
0.8 A
— at 600 V rated value
0.5 A
● with 2 current paths in series at DC-1
— at 24 V rated value
160 A
— at 110 V rated value
160 A
— at 220 V rated value
20 A
— at 440 V rated value
3.2 A
— at 600 V rated value
1.6 A
● with 3 current paths in series at DC-1
— at 24 V rated value
160 A
— at 110 V rated value
160 A
— at 220 V rated value
160 A
— at 440 V rated value
11.5 A
— at 600 V rated value
4A
operational current
● at 1 current path at DC-3 at DC-5
— at 24 V rated value
160 A
— at 110 V rated value
2.5 A
— at 220 V rated value
0.6 A
— at 440 V rated value
0.17 A
— at 600 V rated value
0.12 A
● with 2 current paths in series at DC-3 at DC-5
— at 24 V rated value
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160 A
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© Copyright Siemens
— at 110 V rated value
160 A
— at 220 V rated value
2.5 A
— at 440 V rated value
0.65 A
— at 600 V rated value
0.37 A
● with 3 current paths in series at DC-3 at DC-5
— at 24 V rated value
160 A
— at 110 V rated value
160 A
— at 220 V rated value
160 A
— at 440 V rated value
1.4 A
— at 600 V rated value
0.75 A
operating power
● at AC-2 at 400 V rated value
75 kW
● at AC-3
— at 230 V rated value
50 kW
— at 400 V rated value
75 kW
— at 500 V rated value
90 kW
— at 690 V rated value
132 kW
— at 1000 V rated value
90 kW
operating power for approx. 200000 operating cycles
at AC-4
● at 400 V rated value
38 kW
● at 690 V rated value
55 kW
short-time withstand current in cold operating state
up to 40 °C
● limited to 1 s switching at zero current maximum
2 727 A; Use minimum cross-section acc. to AC-1 rated value
● limited to 5 s switching at zero current maximum
1 831 A; Use minimum cross-section acc. to AC-1 rated value
● limited to 10 s switching at zero current maximum
1 300 A; Use minimum cross-section acc. to AC-1 rated value
● limited to 30 s switching at zero current maximum
850 A; Use minimum cross-section acc. to AC-1 rated value
● limited to 60 s switching at zero current maximum
703 A; Use minimum cross-section acc. to AC-1 rated value
no-load switching frequency
● at DC
1 000 1/h
operating frequency
● at AC-1 maximum
800 1/h
● at AC-2 maximum
300 1/h
● at AC-3 maximum
750 1/h
● at AC-4 maximum
130 1/h
operating frequency
● at DC-1 maximum
400 1/h
● at DC-3 maximum
350 1/h
● at DC-5 maximum
350 1/h
Ratings for railway applications
thermal current (Ith) up to 690 V
● up to 40 °C according to IEC 60077 rated value
185 A
● up to 70 °C according to IEC 60077 rated value
140 A
Control circuit/ Control
type of voltage
DC
type of voltage of the control supply voltage
DC
control supply voltage at DC
● rated value
72 V
consumed current at PLC-control input acc. to IEC
60947-1 maximum
2 mA
voltage at PLC-control input rated value
24 V
operating range factor control supply voltage rated
value of magnet coil at DC
● initial value
0.7
● full-scale value
1.25
design of the surge suppressor
with varistor
closing power of magnet coil at DC
320 W
holding power of magnet coil at DC
2.8 W
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© Copyright Siemens
closing delay
● at DC
35 ... 75 ms
opening delay
● at DC
80 ... 90 ms
arcing time
10 ... 15 ms
control version of the switch operating mechanism
PLC-IN or Standard A1 - A2 (adjustable)
Auxiliary circuit
number of NC contacts for auxiliary contacts
● instantaneous contact
number of NO contacts for auxiliary contacts
● instantaneous contact
operational current at AC-12 maximum
2
2
2
2
10 A
operational current at AC-15
● at 230 V rated value
6A
● at 400 V rated value
3A
● at 500 V rated value
2A
operational current at DC-12
● at 24 V rated value
10 A
● at 48 V rated value
6A
● at 60 V rated value
6A
● at 110 V rated value
3A
● at 125 V rated value
2A
● at 220 V rated value
1A
● at 600 V rated value
0.15 A
operational current at DC-13
● at 24 V rated value
6A
● at 48 V rated value
2A
● at 60 V rated value
2A
● at 110 V rated value
1A
● at 125 V rated value
0.9 A
● at 220 V rated value
0.3 A
● at 600 V rated value
0.1 A
contact reliability of auxiliary contacts
1 faulty switching per 100 million (17 V, 1 mA)
UL/CSA ratings
full-load current (FLA) for 3-phase AC motor
● at 480 V rated value
156 A
● at 600 V rated value
144 A
yielded mechanical performance [hp]
● for single-phase AC motor
— at 230 V rated value
30 hp
● for 3-phase AC motor
— at 200/208 V rated value
50 hp
— at 220/230 V rated value
60 hp
— at 460/480 V rated value
125 hp
— at 575/600 V rated value
150 hp
contact rating of auxiliary contacts according to UL
A600 / Q600
Short-circuit protection
product function short circuit protection
No
design of the fuse link
● for short-circuit protection of the main circuit
— with type of coordination 1 required
gG: 355 A (690 V, 100 kA)
— with type of assignment 2 required
gG: 315 A (690 V, 100 kA), aM: 200 A (690 V, 50 kA), BS88: 315 A (415
V, 50 kA)
● for short-circuit protection of the auxiliary switch
required
gG: 10 A (500 V, 1 kA)
Installation/ mounting/ dimensions
mounting position
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with vertical mounting surface +/-90° rotatable, with vertical mounting
surface +/- 22.5° tiltable to the front and back
1.21.2021
Subject to change without notice
© Copyright Siemens
fastening method
● side-by-side mounting
screw fixing
Yes
height
172 mm
width
120 mm
depth
170 mm
required spacing
● with side-by-side mounting
— forwards
20 mm
— upwards
10 mm
— downwards
10 mm
— at the side
10 mm
● for grounded parts
— forwards
20 mm
— upwards
10 mm
— at the side
10 mm
— downwards
10 mm
● for live parts
— forwards
20 mm
— upwards
10 mm
— downwards
10 mm
— at the side
10 mm
Connections/ Terminals
width of connection bar
17 mm
thickness of connection bar
3 mm
diameter of holes
9 mm
number of holes
1
type of electrical connection
● for main current circuit
screw-type terminals
● for auxiliary and control circuit
spring-loaded terminals
type of connectable conductor cross-sections
● for main contacts
— solid or stranded
● at AWG cables for main contacts
2x (25 ... 120 mm²)
4 ... 250 kcmil
type of connectable conductor cross-sections
● for auxiliary contacts
— solid
2x (0.25 ... 2.5 mm²)
— solid or stranded
2x (0,25 ... 2,5 mm²)
— finely stranded with core end processing
2x (0.25 ... 1.5 mm²)
— finely stranded without core end processing
2x (0.25 ... 2.5 mm²)
● at AWG cables for auxiliary contacts
2x (24 ... 14)
● AWG number as coded connectable conductor
cross section for auxiliary contacts
24 ... 14
Safety related data
B10 value with high demand rate acc. to SN 31920
1 000 000
product function
● mirror contact acc. to IEC 60947-4-1
Yes
● positively driven operation acc. to IEC 60947-5-1
No
protection class IP on the front acc. to IEC 60529
IP00; IP20 with box terminal/cover
touch protection on the front acc. to IEC 60529
finger-safe, for vertical contact from the front with box terminal/cover
suitability for use safety-related switching OFF
Yes
Communication/ Protocol
product function bus communication
No
Certificates/ approvals
General Product Approval
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EMC
1.21.2021
Subject to change without notice
© Copyright Siemens
KC
Declaration of Conformity
Miscellaneous
other
Miscellaneous
Test Certificates
Type Test
Certificates/Test
Report
other
Special Test
Certificate
Confirmation
Miscellaneous
Railway
Special Test
Certificate
Type Test
Certificates/Test
Report
Further information
Information- and Downloadcenter (Catalogs, Brochures,…)
https://www.siemens.com/ic10
Industry Mall (Online ordering system)
https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RT1055-2XJ46-0LA2
Cax online generator
http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RT1055-2XJ46-0LA2
Service&Support (Manuals, Certificates, Characteristics, FAQs,...)
https://support.industry.siemens.com/cs/ww/en/ps/3RT1055-2XJ46-0LA2
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)
http://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RT1055-2XJ46-0LA2&lang=en
Characteristic: Tripping characteristics, I²t, Let-through current
https://support.industry.siemens.com/cs/ww/en/ps/3RT1055-2XJ46-0LA2/char
Further characteristics (e.g. electrical endurance, switching frequency)
http://www.automation.siemens.com/bilddb/index.aspx?view=Search&mlfb=3RT1055-2XJ46-0LA2&objecttype=14&gridview=view1
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last modified:
3RT10552XJ460LA2
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1/12/2021
1.21.2021
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© Copyright Siemens
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