Siemens SIRIUS System Manual

3RT1/3RH1 contactors
SIRIUS System Manual
GWA 4NEB 430 0999-02b
3-123
2) Corresponds to section from IEC 60 947-4 (VDE 0660 Part 102):
Coordination type "1":
The destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced, if necessary.
Coordination type "2":
The overload relay must not be damaged. Contact welding on the contactor is permissible, if it can be easily
separated again from the contactor.
3RT14 contactors, 3-pole
Contactor Frame size
Type
S3
3RT14 46
Short-circuit protection for contactors without overload relay
Main circuit
Fuse applications, performance class gL/gG NH Type 3NA
Coordination type "1"
2
)A 250
Fuse-links, performance class gR SITOR Type 3NE
Coordination type "2"
2
)A 250
Control circuit
Fuse-links, performance class gL/gG DIAZED Type 5SB A 10
(unwelded fuse at
I
k
≥
1 kA) NEOZED Type 5SE A 10
Miniature circuit breaker with C characteristic
(
I
k
<
400 A)
A10
Switching frequency
Switching frequency
z
in operating cycles/hour AC operation DC operation
Contactors without overload relay No-load operation fre-
quency
1/h 5000 1000
Rated operation In acc. with AC-1
In acc. with AC-3
1/h
1/h
650 650
1000 1000
Dependency of switching frequency
z’
on operating current
I’
and operating voltage
U’
:
z’
=
z
⋅⋅
1. 5
1/h
Contactor Frame size
Type
S3
3RT14 46
Current carrying capacity with alternating current
Utilization category AC-1, switching of resistive
loads
Rated operational currents
I
e
At 40 °C up to 690 V
At 60 °C up to 690 V
At 1000 V
A
A
A
140
130
60
Rated power
of three-phase loads
cos
ϕ
= 0.95 (at 60 °C)
At 230 V
400 V
500 V
690 V
1000 V
kW
kW
kW
kW
kW
50
86
107
148
98
Minimum conductor cross-section loaded with
I
e
At 40 °C
At 60 °C
mm
2
mm
2
50
50
Utilization categories AC-2 and AC-3
with an electrical service life of 1.3 mill. operating cycles
Rated operational current
I
e
Up to 690 V A 44
Rated power of motors
with slipring or squirrel-cage rotor
at 50 Hz and 60 Hz (at 60 °C)
At 230 V
400 V
500 V
690 V
kW
kW
kW
kW
12.7
22
29.9
38.2
Current carrying capacity with direct current
Utilization category DC-1, switching of resistive loads L/R
≤
1 ms)
Number of conducting paths in series connection 1 2 3
Rated operational currents
I
e
(at 60 °C) Up to 24 V
60 V
110 V
A
A
A
130
80
12
130
130
130
130
130
130
220 V
440 V
600 V
A
A
A
2.5
0.8
0.48
13
2.4
1. 3
130
6
3.4
I
e
I
′
-----
400
V
U
′
--------------



Siemens SIRIUS Specifications

General

Product brand name	Siemens
Series	SIRIUS
Coil Voltage	24V DC, 110V AC, 230V AC
Switching Capacity	Up to 10A
Mounting Type	DIN rail
Product designation	SIRIUS
Contact Material	Silver alloy
Contact Rating	Varies depending on the specific SIRIUS relay model (e.g., 6 A at 250 V AC, 10 A at 250 V AC)
Switching Voltage	Varies depending on the specific SIRIUS relay model (e.g., 250 V AC, 400 V AC)
Mechanical Life	Up to 10 million operations
Electrical Life	Up to 100, 000 operations
Operating Temperature	-25°C to +55°C
Protection Class	IP20
Size of relay base	Varies depending on the specific SIRIUS relay model