Switch Disconnectors

134 / 158

Switch Disconnectors
3NP1 Fuse Switch Disconnectors up to 630 A
Fuses
7/134 Siemens LV 10 · 2014
7
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) 3NP1 fuse switch disconnectors may be operated at up to 1000 V AC/DC
with the following restrictions:
- Degree of pollution 2 (instead of 3)
- AC20 or DC20 - i.e. switching only without load
3) In the case of cyclic loads, the currents may have to be further reduced
(precise values on request).
4) Values apply if used with 30 x 10 mm rails; for size 00: 12 x 5 mm and top
busbar connection - values for other configurations available on request
3NE4327-0B 250 800 aR 2 150 3NP1153 2 195 3NP1163 3 220
3NP1163 3 215 3NP1163 3 220
3NE4330-0B 315 800 aR 2 240 3NP1153 2 240 3NP1163 3 255
3NP1163 3 270 -- -- --
3NE4333-0B 450 800 aR 2 2x (30x5) 3NP1163 3 370 3NP1163 3 355
3NE4334-0B 500 800 aR 2 2x (30x5) 3NP1163 3 410 3NP1163 3 390
3NE4337 710 800 aR 2 2x (50x5) 3NP1163 3 540 3NP1163 3 500
3NE8015-1 25 690 gR 00 4 3NP1133 00 25 3NP1133 00 25
3NE8003-1 35 690 gR 00 6 3NP1133 00 32 3NP1133 00 35
3NE8017-1 50 690 gR 00 10 3NP1133 00 43 3NP1133 00 50
3NE8018-1 63 690 gR 00 16 3NP1133 00 52 3NP1133 00 60
3NE8020-1 80 690 aR 00 25 3NP1133 00 65 3NP1133 00 72
3NE8021-1 100 690 aR 00 35 3NP1133 00 85 3NP1133 00 85
3NE8022-1 125 690 aR 00 50 3NP1133 00 100 3NP1133 00 100
3NE8024-1 160 690 aR 00 70 3NP1133 00 120 3NP1133 00 115
SITOR semiconductor fuse data Permissible load currents of fuse when installed in
3NP1 for floor mounting 3NP1 for busbar mounting
Type1) Rated
current
In
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) 4)
A V AC mm² A A
© Siemens AG 2014