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7
Switch Disconnectors
3KM Switch Disconnectors with Fuses and Isolating Plug Connector up to 400 A
Fuses
7/83
Siemens LV 10 · 2014
1)
Due to the mechanical stress on the relatively long fuse blades,
SITOR 3NE41 semiconductor fuses should only be switched occasionally
and only at zero current.
2)
Fuses with a rated voltage >690 V may only be operated at max. 690 V
(rated voltage of the 3KM) when installed in 3KM
3)
In the case of cyclic loads, the currents may have to be further reduced
(precise values on request).
4)
The fuse can also be operated at a higher rated uninterrupted current than
the 125 A current of the 3KM52. However, in this case, the 3KM52 must not
be switched under load (utilization category AC-20).
3NE3336
630
1000
aR
2 2x 185
3KM57
2 400
--
--
--
3NE3337-8
710
900
aR
2 2x (40x5)
3KM57
2 400
--
--
--
3NE3338-8
800
800
aR
2 2x 240
3KM57
2 400
--
--
--
3NE3340-8
900
690
aR
2 2x (40x8)
3KM57
2 400
--
--
--
3NE4101
32
1000
gR
0 6
3KM55
1 32
--
--
--
3NE4102
40
1000
gR
0 10
3KM55
1 40
--
--
--
3NE4117
50
1000
gR
0 10
3KM55
1 50
--
--
--
3NE4118
63
1000
aR
0 16
3KM55
1 63
--
--
--
3NE4120
80
1000
aR
0 25
3KM55
1 80
--
--
--
3NE4121
100
1000
aR
0 35
3KM55
1 95
--
--
--
3NE4122
125
1000
aR
0 50
3KM55
1 120
--
--
--
3NE4124
160
1000
aR
0 70
3KM55
1 150
--
--
--
3NE4327-0B 250
800
aR
2 150
3KM57
2 175
--
--
--
3NE4330-0B 315
800
aR
2 240
3KM57
2 230
--
--
--
3NE4333-0B 450
800
aR
2 2x (30x5)
3KM57
2 340
--
--
--
3NE4334-0B 500
800
aR
2 2x (30x5)
3KM57
2 380
--
--
--
3NE4337
710
800
aR
2 2x (50x5)
3KM57
2 400
--
--
--
3NE8015-1
25
690
gR
00 4
3KM50
00 25
3KM52
00 25
3NE8003-1
35
690
gR
00 6
3KM50
00 33
3KM52
00 35
3NE8017-1
50
690
gR
00 10
3KM50
00 45
3KM52
00 50
3NE8018-1
63
690
gR
00 16
3KM50
00 54
3KM52
00 60
3NE8020-1
80
690
aR
00 25
3KM52
00 68
--
--
--
3NE8021-1
100
690
aR
00 35
3KM52
00 89
--
--
--
3NE8022-1
125
690
aR
00 50
3KM52
00 106
--
--
--
3NE8024-1
160
690
aR
00 70
3KM52
00 130
4)
--
--
--
SITOR semiconductor fuse data
Permissible load currents of fuse when installed in
3KM for busbar mounting
Type 3KM
Alternative type 3KM
Type
1)
Rated
current
I
n
Rated
voltage
2)
Opera-
tional
class
Size Required con-
ductor cross-
section Cu
Type
Size Permissible
load
current
3)
Type
Size Permissible
load
current
3)
A
V AC
mm²
A
A
© Siemens AG 2014