Siemens sirius System Manual page 231

3RT14 contactors, 3-pole
Contactor
Short-circuit protection for contactors without overload relay
Main circuit
Fuse applications, performance class gL/gG
Fuse-links, performance class gR
Control circuit
Fuse-links, performance class gL/gG
≥ 1 kA)
(unwelded fuse at I
k
Miniature circuit breaker with C characteristic
< 400 A)
(I
k
Switching frequency
Switching frequency z in operating cycles/hour
Contactors without overload relay
Rated operation
Dependency of switching frequency z'
on operating current I' and operating voltage U':
 
I
400 V
1.5
e
z' = z ⋅ ⋅
---- - ------------- -
1/h
 
I '
U '
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.
Contactor Frame size
Type
Current carrying capacity with alternating current
Utilization category AC-1, switching of resistive
loads
Rated operational currents I
e
Rated power
of three-phase loads
cos ϕ = 0.95 (at 60 °C)
Minimum conductor cross-section loaded with I
Utilization categories AC-2 and AC-3
with an electrical service life of 1.3 mill. operating cycles
Rated operational current I
e
Rated power of motors
with slipring or squirrel-cage rotor
at 50 Hz and 60 Hz (at 60 °C)
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
Rated operational currents I (at 60 °C)
e
SIRIUS System Manual
GWA 4NEB 430 0999-02b
Frame size
Type
NH Type 3NA
Coordination type "1"
SITOR Type 3NE
Coordination type "2"
DIAZED Type 5SB
NEOZED Type 5SE
No-load operation fre-
quency
In acc. with AC-1
In acc. with AC-3
At 40 °C up to 690 V
At 60 °C up to 690 V
At 1000 V
e
Up to 690 V
Up to 24 V
S3
3RT14 46
2
) A 250
2
) A 250
A 10
A 10
A 10
AC operation
1/h 5000
1/h 650
1/h 1000
S3
3RT14 46
A 140
A 130
A 60
At 230 V kW 50
400 V kW 86
500 V kW 107
690 V kW 148
1000 V kW 98
2 50
At 40 °C
mm
2
At 60 °C mm
50
A 44
At 230 V kW 12.7
400 V kW 22
500 V kW 29.9
690 V kW 38.2
1
A 130
60 V A 80
110 V A 12
220 V A 2.5
440 V A 0.8
600 V A 0.48
3RT1/3RH1 contactors
DC operation
1000
650
1000
2 3
130 130
130 130
130 130
13 130
2.4 6
1.3 3.4
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