Fuses and fuse systems, Introduction – Siemens AC-21A User Manual
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Siemens LV 10 · 2004
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Fuses and Fuse Systems
Introduction
7
1) If a cyclic load is applied, it may be necessary to further reduce the cur-
rents (please inquire about precise values).
■
Further information
Further combinations are available on request!
For further information on fuses, see Catalog
SITOR Configuration, Order No.: E20001-A700-P302-X-7600.
For switch disconnectors
SITOR semiconductor protection fuse
Type
Type
Permissible load cur-
rent of the SITOR
semiconductor protec-
tion fuse in the switch
disconnector
1)
Required conductor
cross-section
Cu
Size
Opera-
tional
class
Rated
current
Rated
voltage
DT
Order No.
PS*
Weight
per PU
approx.
A
mm
2
A
V
kg
For SENTRIC 3KL5, 3KL6 and 3KM5 switch disconnectors with fuses
3KL50
3KM50
25
4
00
gR
25
690
}
3NE8 015–1
1 unit
0.205
33
6
35
}
3NE8 003–1
1 unit
0.204
45
10
50
}
3NE8 017–1
1 unit
0.203
54
16
63
}
3NE8 018–1
1 unit
0.205
3KL52
3KM52
68
25
aR
80
690
}
3NE8 020–1
1 unit
0.203
89
35
100
}
3NE8 021–1
1 unit
0.205
105
50
125
}
3NE8 022–1
1 unit
0.213
130
70
160
}
3NE8 024–1
1 unit
0.207
3KL55
3KM55
32
6
0
gR
32
1000
}
3NE4 101
1 unit
0.278
40
10
40
}
3NE4 102
1 unit
0.277
50
10
50
}
3NE4 117
1 unit
0.276
63
16
63
}
3NE4 118
1 unit
0.279
80
25
aR
80
1000
}
3NE4 120
1 unit
0.276
95
35
100
}
3NE4 121
1 unit
0.278
120
50
125
}
3NE4 122
1 unit
0.279
150
70
160
}
3NE4 124
1 unit
0.279
3KL55
3KM55
90
35
1
aR
100
1000
}
3NE3 221
1 unit
0.580
110
50
125
}
3NE3 222
1 unit
0.568
140
70
160
}
3NE3 224
1 unit
0.573
175
95
200
}
3NE3 225
1 unit
0.570
210
120
250
}
3NE3 227
1 unit
0.580
3KL57
3KM57
240
185
aR
315
1000
}
3NE3 230–0B
1 unit
0.585
265
240
350
}
3NE3 231
1 unit
0.590
290
240
400
}
3NE3 232–0B
1 unit
0.576
320
2 × 150
450
}
3NE3 233
1 unit
0.720
3KL61,
3KM57
340, 360 (290)
2)
240
2
aR
400
1000
}
3NE3 332–0B
1 unit
0.759
3KL62
380, 400 (320)
2)
2 × 150
450
}
3NE3 333
1 unit
0.748
440, 470 (360)
2)
2 × 150
500
}
3NE3 334–0B
1 unit
0.753
500, 530 (400)
2)
2 × 185
560
}
3NE3 335
1 unit
0.756
540, 580 (400)
2)
2 × 185
aR
630
1000
}
3NE3 336
1 unit
0.760
600, 640 (400)
2)
2 × 200
710
900
}
3NE3 337–8
1 unit
0.762
630, 720 (400)
2)
2 × 200
800
800
}
3NE3 338–8
1 unit
0.764
630, 800 (460)
2)
2 Ч (50 Ч 5)
900
690
B
3NE3 340–8
1 unit
0.753
3KL61,
200, 200 (175)
2)
120
aR
250
800
}
3NE4 327–0B
1 unit
0.753
3KL62
260, 260 (230)
2)
240
315
}
3NE4 330–0B
1 unit
0.760
370, 370 (340)
2)
240 or 40 × 8
450
}
3NE4 333–0B
1 unit
0.760
425, 450 (380)
2)
2 Ч (30 Ч 5)
500
800
}
3NE4 334–0B
1 unit
0.754
600, 630 (400)
2)
2 Ч (40 Ч 5)
710
800
}
3NE4 337
1 unit
0.761
3KL61,
145
70
3
gR
150
500
}
3NC2 423–3
3 units
1.060
3KL62
180
95
200
}
3NC2 425–3
3 units
1.050
225
120
250
}
3NC2 427–3
3 units
1.060
255
185
gR
300
500
}
3NC2 428–3
3 units
1.070
330
240
350
}
3NC2 431–3
3 units
1.050
400
240
400
}
3NC2 432–3
3 units
1.060
135
70
gR
150
660
}
3NC8 423–3
3 units
1.060
180
95
200
}
3NC8 425–3
3 units
1.060
225
120
250
}
3NC8 427–3
3 units
1.060
300
240
350
}
3NC8 431–3
3 units
1.070
425
2 × 150
500
}
3NC8 434–3
3 units
1.060
800 (630)
2 Ч (60 Ч 6)
aR
1000
600
C
3NC8 444–3
1 unit
1.080
* This quantity or a multiple thereof can be ordered.