Siemens LV 10 · 2004
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SENTRIC Switch Disconnectors
Base mounting
SENTRIC K Switch Disconnectors from 63 A to 1000 A
7
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Area of application

SENTRIC KA switch disconnectors are implemented as main

control switches and EMERGENCY-STOP switches for normal

switching duty and isolation of main circuits and auxiliary cir-

cuits. Another area of application is the switching of three-phase

induction motors and other loads for maintenance and repair

work.

Main control switches and EMERGENCY-STOP switches are

hand-operated switch disconnectors acc. to IEC 60947-3 and

VDE 0660 Part 107 (EN 60947-3) and comply with the isolation

conditions and the requirements of machine guideline

EN60204-1.

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Selection and ordering data

All switch disconnectors to the IP00 degree of protection

Conductor connecting screws are generally included in the scope of supply.

1)The nominal values are reduced in the case of strong harmonics due to fre-
quency converter operation.
Rated
uninter-
rupted
current
Iu
DT Complete
version with
8UC6 door-cou-
pling rotary oper-
ating mechanism
(black handle)
PS* Weight
per PU
ap-
prox.
DT Basic switch
version
without handle
PS* Weight
per PU
ap-
prox.
DT 8UC6 EMER-
GENCY-STOP
door-coupling
rotary operating
mechanism (red
handle, yellow
indicator plate)
PS* Weight
per PU
ap-
prox.
AOrder No. Order No. kg Order No. kg
3-pole for motor loads
3KA53 30–1AE01
63 B 3KA50 30–1EE01 1 unit 1.440 }3KA50 30–1AE01 1 unit 0.946 }8UC61 21–3BB10 1 unit 0.353
80 B 3KA51 30–1EE01 1 unit 1.400 }3KA51 30–1AE01 1 unit 0.918 }8UC61 21–3BB10 1 unit 0.353
125 B 3KA52 30–1EE01 1 unit 2.380 }3KA52 30–1AE01 1 unit 1.880 }8UC62 22–3BB20 1 unit 0.426
160 B 3KA53 30–1EE01 1 unit 2.420 }3KA53 30–1AE01 1 unit 2.020 }8UC62 22–3BB20 1 unit 0.426
250 B 3KA55 30–1EE01 1 unit 5.470 }3KA55 30–1AE01 1 unit 4.510 }8UC63 23–3BB30 1 unit 0.999
400 B 3KA57 30–1EE01 1 unit 5.550 }3KA57 30–1AE01 1 unit 4.630 }8UC63 23–3BB30 1 unit 0.999
630 B 3KA58 30–1EE01 1 unit 6.120 }3KA58 30–1AE01 1 unit 5.150 }8UC63 23–3BB30 1 unit 0.999
3-pole for power distribution
3KA53 30–1AE01
63 B 3KA50 30–1EE01 1 unit 1.440 }3KA50 30–1AE01 1 unit 0.946 }8UC61 21–3BB10 1 unit 0.353
80 B 3KA51 30–1EE01 1 unit 1.400 }3KA51 30–1AE01 1 unit 0.918 }8UC61 21–3BB10 1 unit 0.353
125 B 3KA52 30–1EE01 1 unit 2.380 }3KA52 30–1AE01 1 unit 1.880 }8UC62 22–3BB20 1 unit 0.426
160 B 3KA53 30–1EE01 1 unit 2.420 }3KA53 30–1AE01 1 unit 2.020 }8UC62 22–3BB20 1 unit 0.426
250 B 3KA55 30–1EE01 1 unit 5.470 }3KA55 30–1AE01 1 unit 4.510 }8UC63 23–3BB30 1 unit 0.999
400 B 3KA57 30–1EE01 1 unit 5.550 }3KA57 30–1AE01 1 unit 4.630 }8UC63 23–3BB30 1 unit 0.999
630 B 3KA58 30–1EE01 1 unit 6.120 }3KA58 30–1AE01 1 unit 5.150 }8UC63 23–3BB30 1 unit 0.999
4-pole1) for power distribution
3KA53 40–1AE01
63 B 3KA50 40–1EE01 1 unit 2.490 B 3KA50 40–1AE01 1 unit 2.100 }8UC62 22–3BB20 1 unit 0.426
80 B 3KA51 40–1EE01 1 unit 2.540 B 3KA51 40–1AE01 1 unit 2.110 }8UC62 22–3BB20 1 unit 0.426
125 B 3KA52 40–1EE01 1 unit 2.490 B 3KA52 40–1AE01 1 unit 2.090 }8UC62 22–3BB20 1 unit 0.426
160 B 3KA53 40–1EE01 1 unit 2.450 B 3KA53 40–1AE01 1 unit 2.240 }8UC62 22–3BB20 1 unit 0.426
250 B 3KA55 40–1EE01 1 unit 6.030 C 3KA55 40–1AE01 1 unit 5.040 }8UC63 23–3BB30 1 unit 0.999
400 B 3KA57 40–1EE01 1 unit 5.150 B 3KA57 40–1AE01 1 unit 5.190 }8UC63 23–3BB30 1 unit 0.999
630 C 3KA58 40–1EE01 1 unit 6.590 B 3KA58 40–1AE01 1 unit 5.740 }8UC63 23–3BB30 1 unit 0.999
* This quantity or a multiple thereof can be ordered.