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Siemens IC 10 · 2017
Power Contactors for Switching Motors
SIRIUS 3RT12 and 3TF6 vacuum contactors
3
1)
For more information about short-circuit values, e.g. for protection against
short-circuit currents,
see Certificate of Compliance for the individual
.
For the selection and dimensioning of load feeders,
see
the UL guide "Industrial Control Panels for North America",
.
SIRIUS vacuum contactors
Vacuum contactors
Type
3RT1264
3RT1265
3RT1266
3RT1275
3RT1276
3TF68
3TF69
Size
S10
S12
14
s
and
u
rated data
Rated insulation voltage
V AC
600
600
Uninterrupted current
at 40 °C, open and enclosed
A
330
540
630
820
Maximum horsepower ratings
(
s
and
u
approved values)
• Rated power for three-phase motors at 60 Hz
-
At 200 V
hp
60
75
100
125
150
231
290
-
At 230 V
hp
75
100
125
150
200
266
350
-
At 460 V
hp
150
200
250
300
400
530
700
-
At 575 V
hp
200
250
300
400
500
664
860
NEMA/EEMAC ratings
SIZE
hp
--
6
7
• Uninterrupted current
- Open
A
--
600
820
- Enclosed
A
--
540
810
• Rated power for three-phase motors at 60 Hz
-
At 200 V
hp
--
150
--
-
At 230 V
hp
--
200
300
-
At 460 V
hp
--
400
600
-
At 575 V
hp
--
400
600
Short-circuit protection
1)
kA
10
18
30
100
• CLASS L fuse
A
600
700
800
1 000
1 200
1 600
• Circuit breakers acc. to UL 489
A
500
700
800
1 000
1 200
On request
1)
© Siemens AG 2016