Siemens AC-21 Brochure page 22

SENTRIC KL Switch Disconnectors with Fuses
General data
■
Area of application
SENTRIC KL switch disconnectors with fuses protect against
overload and short-circuits as main control and EMERGENCY-
STOP switches of switchpanels, distribution boards, power sup-
ply and motor feeders. In conjunction with SITOR semiconductor
protection fuses, they are also used in UPS systems, frequency
converters and capacitor control systems.
■
Technical specifications
Standards
Type
Rated uninterrupted current I
For fuse links to DIN 43620
(when semiconductor fuse links are used, derating is nec-
essary, see Catalog SITOR Configuration SENTRIC KL
Switch Disconnectors with Fuses
Order No. E20001–A700–P302-X-7600)
Continuous thermal current I
Rated insulation voltage U
Rated impulse withstand voltage U
Rated operating voltage U
7
AC 50 Hz/60 Hz
DC
Rated short-circuit making capacity with fuses
at AC 50 Hz/60 Hz 690 V
Rated conditional short-circuit current with fuses
at AC 50 Hz/60 Hz 690 V
Max. rated current I of the fuses
n
Max. permissible power loss of the installed fuse
NH
BS
Permissible let-through current of the fuses
Maximum permissible cut-off I
Switching capacity (infeed top or bottom)
at AC 400 V
Breaking current I (p.f. = 0.35)
c
Rated operating current I
Motor switching capacity at AC-23A
at AC 500 V
Breaking current I (p.f. = 0.35)
c
Rated operating current I
Motor switching capacity at AC-23A
at AC 690 V
Breaking current I (p.f. = 0.35)
c
Rated operating current I
Motor switching capacity at AC-23A
at DC 440 V (3 series-connected current path)
Breaking current I (L/R = 15 ms)
c
Rated operating current I
Rated short-time current (1 s current)
Permissible load
depending on the ambient temperature for open-type instal-
lation in switchboards (e.g. 8NA1) in switchgear cubicles or
switchgear racks at
35 °C
40 °C
45 °C
50 °C
55 °C
Permissible ambient temperature
Mechanical endurance
Required operating torque
Degree of protection
Power loss of the disconnector at I
(plus power loss of the fuses)
1) Technical specifications for CSA approval on request.
2) With 3KL61 for operation –25 °C ... +35 °C, at +55 °C: I
3) Configuring note: max. permissible operating temperature for fuse blades
135°C, for connections 100 °C.
4) 3ND1 switchgear protection fuses.
7/22 Siemens LV 10 · 2004
A
u
Size
3)
A
th
V
i
kV
imp
e
V
V
2)
kA (peak value)
2)
kA (rms value)
A
W
W
kA
2
t value kA
A (rms value)
at AC-21A, AC-22A, AC-23A A
e
kW
A (rms value)
at AC-21A, AC-22A, AC-23A A
e
kW
A (rms value)
at AC-21A, AC-22A, AC-23A A
e
kW
A
at DC-23A A
e
kA (rms value)
A
A
A
A
A
°C
Operations
Nm
W
th
= 570 A.
th
For use in the paper and pulp processing industry, a special
variant that is resistant to strongly sulphurous atmospheres can
be supplied.
All SENTRIC KL switch disconnectors are climate-proof and
meet the requirements of IEC 60947-1, IEC 60947-3 and
VDE 0660 Part 107.
IEC 60 947-1, IEC 60 947-3, VDE 0660 Part 107
3KL50 3KL52
63 125
00 and 00 and
000 000
63 125
690 1000
6 8
690
440 (3 conducting paths series-connected),
220 (2 conducting paths series-connected)
220 220
100 100
80 160
6 9
8 (A2/A3) 11.5 (A4)
8 17
2
s 55 223
500 1000
63 125
30 65
500 1000
63 125
40 90
500 1000
63 125
50 110
250 500
63 125
2.5 3.2
63 125
63 125
63 125
63 125
63 125
–25 ... +55 for operation
15000 15000
3 7.5
IP00/IP20 (from operator side, with fuse and terminal covers)
8.5 22
5) AC-23B.
6) At 440 V L/R = 4 ms, at 220 V L/R = 15 ms.
7) L/R = 2.5 ms.
8) At 440 V DC-22A, at 220 V DC-23A.
1) 1)
3KL53 3KL55 3KL57 3KL61
160 250 400 630
00 and 1 and 2 1 and 2 3 and 2
000
160 250 400 630
1000 1000 1000 1000
8 8 8 8
220 176 176 105
100 80 80 50
160 400 400 630
11.5 32 45 48
11.5 32 45 48
4) 4)
17 30 30 50
223 1000 1000 5400
1280 2000 3200 5100
160 250 400 630
80 132 200 335
1280 2000 3200 5100
160 250 400 630
110 185 280 425
1280 2000 3200 5100
160 250 400 630
150 220 375 560
6)
640 100 1600 2520
8)
160 250 400 630
3.2 8 11 32
160 250 400 630
155 250 390 630
150 250 380 610
145 250 370 590
140 240 360 570
4)
, –50 ... +80 for storage
15000 12000 12000 3000
7.5 16 16 30
36 33 86 140
1) 1)
3KL62
800
3 and 2
800
1000
8
105
50
800
62
60.5
50
10500
6400
5) 5)
800
400
6400
5) 5)
630
500
6400
5) 5)
800
700
7) 7)
2520
8) 8)
630
32
800
780
760
740
720
3000
30
225