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Siemens 3KA571 Opuscolo
Fuses and Fuse Systems
Introduction
■
Selection and ordering data
For switch disconnectors
Type
Type
For 3NP fuse switch disconnectors
3NP54
3NP44 70, 560 (510)
3NP44 76
3NP44 76
3NP54
3NP44 70, 710 (600)
3NP44 76
3NP54
3NP44 70
3NP44 76
For SENTRIC 3KL5, 3KL6 and 3KM5 switch disconnectors with fuses
3KL50 30
3KM50 30
7
3KL52 30
3KM52 30
3KL52 30
3KM52 30
3KL55 30
3KM55 30
3KL57 30
3KM57 30
3KL57;
3KM57 30
3KL61 30
3KL61 30
3KM57 30
3KL61 30,
–
3KL62
3KL61 30,
–
3KL62
3KL61 30,
–
3KL62
1) If a cyclic load is applied, it may be necessary to further reduce the cur-
rents (please inquire about precise values).
2) Values in brackets apply to the 3NP4 fuse switch disconnector.
3) Values in brackets apply to the 3KL5/3KM5 switch disconnectors.
7/30
Siemens LV 10 · 2004
Permissible load cur-
Required conductor
rent of the SITOR
cross-section
semiconductor protec-
Cu
tion fuse in the switch
1)
disconnector
2
A
mm
2)
2 × 150
2)
560 (540)
2 × 150
2)
630 (535)
2 × 185
2)
630 (600)
2 × 185
2)
2 × (40 × 5)
2)
690 (570)
2)
710 (685)
2)
800 (630)
2 × (50 × 5)
2)
750 (600)
2)
800 (770)
2)
670 (655)
2 × (40 × 5)
2)
850 (820)
2 × (40 × 8)
16
1.5
20
2.5
25
4
35
6
40
10
50
10
63
16
80
25
100
35
125
50
125
50
160
70
160
200
95
200
250
120
245
315
2 × 70
280
3)
350 (330)
2 × 95
3)
350 (300)
400 (375)
3)
450 (400)
2 × 120
3)
450 (325)
3)
500 (400)
3)
500 (350)
560
2 × 150
560
630
2 × 185
615 (630)
710
2 × (40 × 5)
710 (700)
630
800
2 × (50 × 5)
770 (800)
630 (760)
630 (670)
2 × (40 × 5)
630 (790)
2 × (40 × 8)
SITOR semiconductor protection fuse
Size
Opera-
Rated
Rated
tional
current
voltage
class
A
V
3
gR/gS
560
690
gR
560
gR/gS
630
gR
630
3
gR/gS
710
690
gR
690
600
gR
710
600
3
gR/gS
800
690
gR
750
600
gR
800
600
gR
670
690
gR
850
690
3)
000
gR/gS
16
690
20
25
35
gR/gS
40
690
50
63
80
00
gR/gS
100
690
gR/gS
125
gR
125
1
gR/gS
160
690
gR
160
gR/gS
200
gR
200
gR/gS
250
gR
250
gR/gS
315
gR
315
2
gR/gS
350
690
gR
350
gR/gS
400
gR/gS
450
gR
450
gR/gS
500
gR
500
3
gR/gS
560
690
gR
560
gR/gS
630
gR
630
3
gR/gS
710
690
gR
600
gR
710
690
3
gR/gS
800
690
gR
600
gR
800
690
gR
670
690
gR
850
690
* This quantity or a multiple thereof can be ordered.
DT
Order No.
PS*
Weight
per PU
approx.
kg
}
3NE1 435-0
1 unit
1.110
}
3NE1 435-2
1 unit
1.140
}
3NE1 436-0
1 unit
1.110
}
3NE1 436-2
1 unit
1.170
}
3NE1 437-0
1 unit
1.110
C
3NE1 437-1
1 unit
1.120
}
3NE1 437-2
1 unit
1.150
}
3NE1 438-0
1 unit
1.120
C
3NE1 438-1
1 unit
1.110
}
3NE1 438-2
1 unit
1.180
}
3NE1 447-2
1 unit
1.170
}
3NE1 448-2
1 unit
1.200
}
3NE1 813-0
9 units
0.127
}
3NE1 814-0
9 units
0.128
}
3NE1 815-0
9 units
0.127
}
3NE1 803-0
9 units
0.128
}
3NE1 802-0
9 units
0.127
}
3NE1 817-0
9 units
0.128
}
3NE1 818-0
9 units
0.128
}
3NE1 820-0
9 units
0.129
}
3NE1 021–0
3 units
0.202
}
3NE1 022–0
3 units
0.202
}
3NE1 022–2
3 units
0.203
}
3NE1 224-0
3 units
0.580
}
3NE1 224-2
3 units
0.613
}
3NE1 225-0
3 units
0.582
}
3NE1 225-2
3 units
0.612
}
3NE1 227-0
3 units
0.580
}
3NE1 227-2
3 units
0.626
}
3NE1 230-0
3 units
0.581
}
3NE1 230-2
3 units
0.615
}
3NE1 331-0
3 units
0.766
}
3NE1 331-2
3 units
0.754
}
3NE1 332-0
3 units
0.743
}
3NE1 333-0
3 units
0.760
}
3NE1 333-2
3 units
0.768
}
3NE1 334-0
3 units
0.766
}
3NE1 334-2
3 units
0.768
}
3NE1 435-0
1 unit
1.110
}
3NE1 435-2
1 unit
1.140
}
3NE1 436-0
1 unit
1.110
}
3NE1 436-2
1 unit
1.170
}
3NE1 437-0
1 unit
1.110
C
3NE1 437-1
1 unit
1.120
}
3NE1 437-2
1 unit
1.150
}
1 unit
1.120
3NE1 438-0
C
3NE1 438-1
1 unit
1.110
}
3NE1 438-2
1 unit
1.180
}
3NE1 447-2
1 unit
1.170
}
3NE1 448-2
1 unit
1.200