Siemens LV 10 · 2004
7/30
Fuses and Fuse Systems
Introduction
7
■
Selection and ordering data
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.
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 3NP fuse switch disconnectors
3NP54
3NP44 70,
560 (510)
2)
2 × 150
3
gR/gS
560
690
}
3NE1 435-0
1 unit
1.110
3NP44 76
560 (540)
2)
2 × 150
gR
560
}
3NE1 435-2
1 unit
1.140
630 (535)
2)
2 × 185
gR/gS
630
}
3NE1 436-0
1 unit
1.110
3NP44 76
630 (600)
2)
2 × 185
gR
630
}
3NE1 436-2
1 unit
1.170
3NP54
3NP44 70,
710 (600)
2)
2 × (40 × 5)
3
gR/gS
710
690
}
3NE1 437-0
1 unit
1.110
3NP44 76
690 (570)
2)
gR
690
600
C
3NE1 437-1
1 unit
1.120
710 (685)
2)
gR
710
600
}
3NE1 437-2
1 unit
1.150
3NP54
3NP44 70
800 (630)
2)
2 × (50 × 5)
3
gR/gS
800
690
}
3NE1 438-0
1 unit
1.120
3NP44 76
750 (600)
2)
gR
750
600
C
3NE1 438-1
1 unit
1.110
800 (770)
2)
gR
800
600
}
3NE1 438-2
1 unit
1.180
670 (655)
2)
2 × (40 × 5)
gR
670
690
}
3NE1 447-2
1 unit
1.170
850 (820)
2)
2 × (40 × 8)
gR
850
690
}
3NE1 448-2
1 unit
1.200
For SENTRIC 3KL5, 3KL6 and 3KM5 switch disconnectors with fuses
3KL50 30
3KM50 30
16
1.5
000
3)
gR/gS
16
690
}
3NE1 813-0
9 units
0.127
20
2.5
20
}
3NE1 814-0
9 units
0.128
25
4
25
}
3NE1 815-0
9 units
0.127
35
6
35
}
3NE1 803-0
9 units
0.128
40
10
gR/gS
40
690
}
3NE1 802-0
9 units
0.127
50
10
50
}
3NE1 817-0
9 units
0.128
63
16
63
}
3NE1 818-0
9 units
0.128
3KL52 30
3KM52 30
80
25
80
}
3NE1 820-0
9 units
0.129
3KL52 30
3KM52 30
100
35
00
gR/gS
100
690
}
3NE1 021–0
3 units
0.202
125
50
gR/gS
125
}
3NE1 022–0
3 units
0.202
125
50
gR
125
}
3NE1 022–2
3 units
0.203
3KL55 30
3KM55 30
160
70
1
gR/gS
160
690
}
3NE1 224-0
3 units
0.580
160
gR
160
}
3NE1 224-2
3 units
0.613
200
95
gR/gS
200
}
3NE1 225-0
3 units
0.582
200
gR
200
}
3NE1 225-2
3 units
0.612
250
120
gR/gS
250
}
3NE1 227-0
3 units
0.580
245
gR
250
}
3NE1 227-2
3 units
0.626
3KL57 30
3KM57 30
315
2 × 70
gR/gS
315
}
3NE1 230-0
3 units
0.581
280
gR
315
}
3NE1 230-2
3 units
0.615
3KL57;
3KM57 30
350 (330)
3)
2 × 95
2
gR/gS
350
690
}
3NE1 331-0
3 units
0.766
3KL61 30
350 (300)
3)
gR
350
}
3NE1 331-2
3 units
0.754
400 (375)
gR/gS
400
}
3NE1 332-0
3 units
0.743
3KL61 30
3KM57 30
450 (400)
3)
2 × 120
gR/gS
450
}
3NE1 333-0
3 units
0.760
450 (325)
3)
gR
450
}
3NE1 333-2
3 units
0.768
500 (400)
3)
gR/gS
500
}
3NE1 334-0
3 units
0.766
500 (350)
3)
gR
500
}
3NE1 334-2
3 units
0.768
3KL61 30,
–
560
2 × 150
3
gR/gS
560
690
}
3NE1 435-0
1 unit
1.110
3KL62
560
gR
560
}
3NE1 435-2
1 unit
1.140
630
2 × 185
gR/gS
630
}
3NE1 436-0
1 unit
1.110
615 (630)
gR
630
}
3NE1 436-2
1 unit
1.170
3KL61 30,
–
710
2 × (40 × 5)
3
gR/gS
710
690
}
3NE1 437-0
1 unit
1.110
3KL62
710 (700)
gR
600
C
3NE1 437-1
1 unit
1.120
630
gR
710
690
}
3NE1 437-2
1 unit
1.150
3KL61 30,
–
800
2 × (50 × 5)
3
gR/gS
800
690
}
3NE1 438-0
1 unit
1.120
3KL62
770 (800)
gR
600
C
3NE1 438-1
1 unit
1.110
630 (760)
gR
800
690
}
3NE1 438-2
1 unit
1.180
630 (670)
2 × (40 × 5)
gR
670
690
}
3NE1 447-2
1 unit
1.170
630 (790)
2 × (40 × 8)
gR
850
690
}
3NE1 448-2
1 unit
1.200
* This quantity or a multiple thereof can be ordered.