Siemens 3KA58 Broschüre - Seite 18

Blättern Sie online oder laden Sie pdf Broschüre für Schalter Siemens 3KA58 herunter. Siemens 3KA58 50 Seiten. Switch disconnectors and fuses

Seite drucken
Siemens 3KA58 Broschüre
SENTRIC NP Fuse Switch Disconnectors
General data
■
Technical specifications
Standards
Type
Rated uninterrupted current I
For fuse links acc. to DIN 43620
Continuous thermal current I
Rated operating voltage U
AC 50 Hz/60 Hz
DC
Rated insulation voltage U
Rated impulse withstand voltage U
Rated conditional short-circuit current with fuses
(on rapid closing)
With fuse links
Rated current
at AC 400 V (690 V)
Maximum permissible let-through I
Permissible let-through current of the fuse
Short-circuit strength with fuses
(with closed disconnector)
7
With fuse links
Rated current
at 690 V
Permissible let-through current of the fuse
Rated making and breaking capacity
(Feed-in from top or bottom)
At AC 400 V, with fuse links
or isolating links
Rated breaking current I
Rated operating current I
AC-21B, AC-22B
AC-23B
At AC 500 V, with fuse links
or isolating links
Rated breaking current I
Rated operating current I
AC-21 B
AC-22B
AC-23B
At AC 690 V, with fuse links
or isolating links
Rated breaking current I
Rated operating current I
AC-21 B
AC-22B
AC-23B
At DC 220 V/240 V, with fuse links
or isolating links
Rated operating current I
220 V DC-23B/DC-21B
440 V DC-21B
1) 125/160 A only with 3NY1 236 supply terminals and with 21 mm wide fuse
links 3NY1 822 (125 A) and 3NY1 824 (160 A); see Accessories.
2) Only for isolating links; otherwise note instructions of the fuse manufac-
turer.
3) For no-load switching (AC-20 B, DC-20 B), DC voltages up to DC 690 V
can be applied.
4) For safety monitoring max. 690 V.
5) For pollution severity 2, the switch disconnectors can be used up to 1000 V
AC-20 B, DC-20 B (no-load switching).
6) Conducting paths in series: 3 at 3NP40; 2 at 3NP42, 3NP43 and 3NP44.
7/18
Siemens LV 10 · 2004
A
u
Size
A
th
e
V
V
V
i
kV
imp
Size/A
kA (rms value)
2
2
t value
kA
s
kA (peak value)
Size/A
kA (rms value)
kA (peak value)
Size
(p.f. = 0.35)
A (rms value)
c
at
e
A
A
Size
(p.f. = 0.35)
A (rms value)
c
at
e
A
A
A
Size
(p.f. = 0.35)
A (rms value)
c
at
e
A
A
A
3)5)6)
Size
at
e
A
A
IEC 60947-1, IEC 60947-3, VDE 0660 Part 107
3NP40 1
3NP40 7
1)
160
160
00C/000
00
1)
160
160
690
220
(3 conducting paths in series)
690
690
6
6
000/100 (35)
00/160
50 (50)
50
56 (7.8)
158
11 (5)
15
000/100
00/160
100
50
15
15
000
00
800 (p.f. = 0.45)
800
160
160
100
100
000
00
320 (p.f. = 0.45)
320
160
160
100
100
40
40
000
00
200/240
200/240
(p.f. = 0.45/0.95)
(p.f. = 0.45/0.95)
160
160
50
50
25
25
000
00
80/160
80/160
–
–
3NP42 7
3NP43 7
3NP44 7
250
400
630
1 and 0
2 and 1
3 and 2
250
400
630
690
440
(2 conducting paths in series)
4)
4)
800
800
800
6
6
6
1/250
2/400
3/630
50
50
50
551
1515
4340
25
35
55
1/250
2/400
3/630
50
50
50
25
35
55
1
2
3
2000
3200
5040
250
400
630
250
400
630
1
2
3
750
1200
1890
250
400
630
250
400
630
–
–
–
1
2
3
375
600
945
250
400
630
–
–
–
–
–
–
1
2
3
–
–
–
250
400
630
4)