Siemens 3KA52 Brochure - Pagina 31

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Siemens 3KA52 Brochure
For switch disconnectors
Type
Permissible load cur-
rent of the SITOR
semiconductor protec-
tion fuse in the switch
disconnector
A
For SENTRIC 3NP fuse switch disconnectors
3NP40 7, 3NP50
25
(3NP40 75/3NP40 76)
33
45
54 (53)
68
89 (85)
106 (100)
130 (125)
3NP42, 3NP52
32
38, 40
45, 50
59, 63
76, 80
90, 95
115, 120
144, 150
3NP43, 3NP53
100 (100)
(3NP43 76)
120 (125)
150 (160)
190 (200)
230 (250)
3NP43 7, 3NP53
270, 285 (285)
(3NP43 76)
290, 310 (310)
310, 330 (330)
330, 360 (360)
3NP44 7, 3NP54
345 (340)
(3NP44 76)
385 (370)
430, 450 (410)
490, 510 (450)
560, 580 (500)
590, 630 (510)
605, 630 (520)
630, 630 (530)
3NP44 7, 3NP53
205, 210 (235)
(3NP44 76)
260, 270 (280)
375, 400 (390)
3NP44 7, 3NP54
410, 450 (415)
(3NP44 76)
540, 600 (480)
3NP44 7, 3NP54
140, 145 (140)
(3NP44 76)
175, 180 (175)
220, 225 (215)
250, 255 (245)
320, 330 (315)
370, 400 (360)
120, 135 (120)
160, 180 (155)
200, 225 (195)
270, 300 (260)
385, 425 (375)
630, 800 (630)
1) If a cyclic load is applied, it may be necessary to further reduce the cur-
rents (please inquire about precise values).
2) If overvoltage category 2 (instead of 3) and pollution degree 2 (instead of
3) in accordance with EN 60947-1 is maintained, the rated insulation volt-
age of the SENTRIC 3NP switch disconnectors also amounts to
U
= 1000 V.
i
3) Due to the mechanical stress on the relatively long fuse blades,
3NE41 SITOR semiconductor protection fuses should be switched only
occasionally and only at zero current.
* This quantity or a multiple thereof can be ordered.
SITOR semiconductor protection fuse
Required conductor
Size
cross-section
Cu
1)
2
mm
4
00
6
10
16
25
35
50
70
3)
6
0
10
10
16
25
35
50
70
35
1
50
70
95
120
185
240
240
2 × 150
240
2
2 × 150
2 × 150
2 × 185
2 × 185
2 × 200
2 × 200
2 × (50 × 5)
120
240
2 × (30 × 5)
2 × (30 × 5)
2 × (40 × 5)
70
3
95
120
185
240
240
70
95
120
240
2 × 150
3 × (60 × 6)
Fuses and Fuse Systems
Opera-
Rated
Rated
DT
2)
tional
current
voltage
class
A
V
}
gR
25
690
}
35
}
50
}
63
}
aR
80
690
}
100
}
125
}
160
}
gR
32
1000
}
40
}
50
}
63
}
aR
80
1000
}
100
}
125
}
160
}
aR
100
1000
}
125
}
160
}
200
}
250
}
aR
315
1000
}
350
}
400
}
450
}
aR
400
1000
}
450
}
500
}
560
}
aR
630
1000
}
710
900
}
800
800
900
690
B
}
aR
250
800
}
315
}
450
}
aR
500
800
}
710
}
gR
150
500
}
200
}
250
}
gR
300
500
}
350
}
400
}
gR
150
660
}
200
}
250
}
350
}
500
aR
1000
600
C
Introduction
Order No.
PS*
Weight
per PU
approx.
kg
3NE8 015–1
1 unit
0.205
3NE8 003–1
1 unit
0.204
3NE8 017–1
1 unit
0.203
3NE8 018–1
1 unit
0.205
3NE8 020–1
1 unit
0.203
3NE8 021–1
1 unit
0.205
3NE8 022–1
1 unit
0.213
3NE8 024–1
1 unit
0.207
3NE4 101
1 unit
0.278
3NE4 102
1 unit
0.277
3NE4 117
1 unit
0.276
3NE4 118
1 unit
0.279
3NE4 120
1 unit
0.276
1 unit
0.278
3NE4 121
3NE4 122
1 unit
0.279
3NE4 124
1 unit
0.279
3NE3 221
1 unit
0.580
3NE3 222
1 unit
0.568
3NE3 224
1 unit
0.573
3NE3 225
1 unit
0.570
3NE3 227
1 unit
0.580
3NE3 230–0B
1 unit
0.585
3NE3 231
1 unit
0.590
3NE3 232–0B
1 unit
0.576
3NE3 233
1 unit
0.720
3NE3 332–0B
1 unit
0.759
3NE3 333
1 unit
0.748
3NE3 334–0B
1 unit
0.753
3NE3 335
1 unit
0.756
3NE3 336
1 unit
0.760
3NE3 337–8
1 unit
0.762
3NE3 338–8
1 unit
0.764
3NE3 340–8
1 unit
0.753
3NE4 327–0B
1 unit
0.753
3NE4 330–0B
1 unit
0.760
3NE4 333–0B
1 unit
0.760
3NE4 334–0B
1 unit
0.754
3NE4 337
1 unit
0.761
3NC2 423–3
3 units
1.060
3NC2 425–3
3 units
1.050
3NC2 427–3
3 units
1.060
3NC2 428–3
3 units
1.070
3NC2 431–3
3 units
1.050
3NC2 432–3
3 units
1.060
3NC8 423–3
3 units
1.060
3NC8 425–3
3 units
1.060
3 units
1.060
3NC8 427–3
3NC8 431–3
3 units
1.070
3NC8 434–3
3 units
1.060
3NC8 444–3
1 unit
1.080
Siemens LV 10 · 2004
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