Switch disconnectorsSwitch disconnectors
Derating values of 3NP1 fuse switch disconnectors when using SITOR fuses
The 3NP1 fuse switch disconnectors are suitable for all fuses in LV HRC design. SITOR semiconductor fuses in LV HRC design can also be used. Although it must be noted that, compared to cable and line protection fuses, these get much hotter during operation. For this reason, the fuse must be operated below the rated current In of the device (derating) when installed in a closed switching device.
The following tables show the permissible load currents of the SITOR semiconductor fuses for installation in 3NP1. The values were determined using the conductor cross-sections specified in the table.
3NC
SITOR semiconductor fuse data |
Permissible load currents 4) of the fuse in 3NP1 |
||||||||
---|---|---|---|---|---|---|---|---|---|
Type 1)2) |
Size |
Rated current In |
Rated voltage 3) |
Operational class |
Required conductor cross-section Cu |
Type |
Size |
Floor mounting |
Busbar mounting 5) |
A |
V AC |
mm2 |
A |
A |
|||||
3NC23.. |
3 |
150 |
500 |
gR |
70 |
3NP1163 |
3 |
140 |
150 |
3NC2425.. |
3 |
200 |
500 |
gR |
95 |
3NP1163 |
3 |
175 |
190 |
3NC2427.. |
3 |
250 |
500 |
gR |
120 |
3NP1163 |
3 |
220 |
237 |
3NC2428.. |
3 |
300 |
500 |
gR |
185 |
3NP1163 |
3 |
250 |
285 |
3NC2431.. |
3 |
350 |
500 |
gR |
240 |
3NP1163 |
3 |
320 |
332 |
3NC2432.. |
3 |
400 |
500 |
aR |
240 |
3NP1163 |
3 |
370 |
380 |
3NC3336-1 |
3 |
630 |
1000 |
aR |
2 x (40 x 5) |
3NP1163 |
3 |
500 |
500 |
3NC3430-1 |
3 |
315 |
1250 |
aR |
2 x 95 |
3NP1163 |
3 |
280 |
285 |
3NC3432-1 |
3 |
400 |
1250 |
aR |
2 x 120 |
3NP1163 |
3 |
340 |
340 |
3NC3434-1 |
3 |
500 |
1250 |
aR |
2 x 150 |
3NP1163 |
3 |
400 |
425 |
3NC3436-1 |
3 |
630 |
1250 |
aR |
2 x (40 x 5) |
3NP1163 |
3 |
460 |
535 |
3NC8423.. |
3 |
150 |
660 |
gR |
70 |
3NP1163 |
3 |
120 |
140 |
3NC8425.. |
3 |
200 |
660 |
gR |
95 |
3NP1163 |
3 |
160 |
190 |
3NC8427.. |
3 |
250 |
660 |
gR |
120 |
3NP1163 |
3 |
200 |
240 |
3NC8431.. |
3 |
350 |
660 |
gR |
240 |
3NP1163 |
3 |
270 |
300 |
3NC8434.. |
3 |
500 |
660 |
gR |
2 x 150 |
3NP1163 |
3 |
385 |
385 |
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) Permissible load currents for 3NE8...-0MK
3) 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
4) In the case of cyclic loads, the currents may have to be further reduced (precise values on request).
5) 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.
3NE1..
SITOR semiconductor fuse data |
Permissible load currents 4) of the fuse in 3NP1 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Type 1)2) |
Size |
Rated current In |
Rated voltage 3) |
Operational class |
Required conductor cross-section Cu |
Type |
Size |
Floor mounting |
Type |
Size |
Busbar mounting 5) |
A |
V AC |
mm2 |
A |
A |
|||||||
3NE1020-2 |
00 |
80 |
690 |
gR |
25 |
3NP1133 |
00 |
80 |
3NP1133 |
00 |
80 |
3NE1021-0 |
00 |
100 |
690 |
gS |
35 |
3NP1133 |
00 |
100 |
3NP1133 |
00 |
100 |
3NE1021-2 |
00 |
100 |
690 |
gR |
35 |
3NP1133 |
00 |
95 |
3NP1133 |
00 |
95 |
3NE1022-0 |
00 |
125 |
690 |
gS |
50 |
3NP1133 |
00 |
120 |
3NP1133 |
00 |
120 |
3NE1022-2 |
00 |
125 |
690 |
gR |
50 |
3NP1133 |
00 |
115 |
3NP1133 |
00 |
115 |
3NE1224-0 |
1 |
160 |
690 |
gS |
70 |
3NP1143 |
1 2 |
160 160 |
3NP1143 |
1 2 |
160 160 |
3NE1224-2/3 |
1 |
160 |
690 |
gR |
70 |
3NP1143 3NP1153 |
1 2 |
150 160 |
3NP1143 3NP1153 |
1 2 |
152 160 |
3NE1225-2/3 |
1 |
200 |
690 |
gR |
95 |
3NP1143 3NP1153 |
1 2 |
180 190 |
3NP1143 3NP1153 |
1 2 |
180 190 |
3NE1227-0 |
1 |
250 |
690 |
gS |
120 |
3NP1143 3NP1153 |
1 2 |
235 250 |
3NP1143 3NP1153 |
1 2 |
238 250 |
3NE1227-2/3 |
1 |
250 |
690 |
gR |
120 |
3NP1143 3NP1153 |
1 2 |
220 235 |
3NP1143 3NP1153 |
1 2 |
213 235 |
3NE1230-0 |
1 |
315 |
690 |
gS |
2 x 70 |
3NP1153 |
2 |
290 |
3NP1153 |
2 |
315 |
3NE1230-2/3 |
1 |
315 |
690 |
gR |
2 x 70 |
3NP1153 3NP1163 |
2 3 |
278 380 |
3NP1153 3NP1163 |
2 3 |
315 400 |
3NE1331-0 |
2 |
350 |
690 |
gS |
2 x 95 |
3NP1153 3NP1163 |
2 3 |
315 340 |
3NP1153 3NP1163 |
2 3 |
350 350 |
3NE1331-2/3 |
2 |
350 |
690 |
gR |
2 x 95 |
3NP1153 3NP1163 |
2 3 |
300 330 |
3NP1153 3NP1163 |
2 3 |
330 350 |
3NE1332-0 |
2 |
400 |
690 |
gS |
2 x 95 |
3NP1153 |
2 |
340 |
3NP1153 |
2 |
380 |
3NE1332-2/3 |
2 |
400 |
690 |
gR |
2 x 95 |
3NP1153 3NP1163 |
2 3 |
328 370 |
3NP1153 3NP1163 |
2 3 |
360 400 |
3NE1333-0 |
2 |
450 |
690 |
gS |
2 x 120 |
3NP1163 |
3 |
450 |
3NP1163 |
3 |
430 |
3NE1333-2/3 |
2 |
450 |
690 |
gR |
2 x 120 |
3NP1163 |
3 |
430 |
3NP1163 |
3 |
420 |
3NE1334-0 |
2 |
500 |
690 |
gS |
2 x 120 |
3NP1163 |
3 |
500 |
3NP1163 |
3 |
450 |
3NE1334-2/3 |
2 |
500 |
690 |
gR |
2 x 120 |
3NP1163 |
3 |
475 |
3NP1163 |
3 |
450 |
3NE1435-0 |
3 |
560 |
690 |
gS |
2 x 150 |
3NP1163 |
3 |
560 |
3NP1163 |
3 |
520 |
3NE1435-2/3 |
3 |
560 |
690 |
gR |
2 x 150 |
3NP1163 |
3 |
555 |
3NP1163 |
3 |
510 |
3NE1436-0 |
3 |
630 |
690 |
gS |
2 x 185 |
3NP1163 |
3 |
630 |
3NP1163 |
3 |
585 |
3NE1436-2/3 |
3 |
630 |
690 |
gR |
2 x 185 |
3NP1163 |
3 |
620 |
3NP1163 |
3 |
570 |
3NE1437-0 |
3 |
710 |
690 |
gS |
2 x (40 x 5) |
-- |
-- |
-- |
3NP1163 |
3 |
605 |
3NE1437-1 |
3 |
710 |
600 |
gR |
2 x (40 x 5) |
-- |
-- |
-- |
3NP1163 |
3 |
590 |
3NE1437-2/3 |
3 |
710 |
690 |
gR |
2 x (40 x 5) |
-- |
-- |
-- |
3NP1163 |
3 |
580 |
3NE1438-0 |
3 |
800 |
690 |
gS |
2 x (50 x 5) |
-- |
-- |
-- |
3NP1163 |
3 |
630 |
3NE1438-1 |
3 |
800 |
600 |
gR |
2 x (50 x 5) |
-- |
-- |
-- |
3NP1163 |
3 |
610 |
3NE1438-2/3 |
3 |
800 |
690 |
gR |
2 x (50 x 5) |
-- |
-- |
-- |
3NP1163 |
3 |
600 |
3NE1447-2/3 |
3 |
670 |
690 |
gR |
2 x (40 x 5) |
-- |
-- |
-- |
3NP1163 |
3 |
575 |
3NE1448-2/3 |
3 |
850 |
690 |
gR |
2 x (40 x 8) |
-- |
-- |
-- |
3NP1163 |
3 |
630 |
3NE1802-0 |
000 |
40 |
690 |
gS |
10 |
3NP1123 |
000 00 |
40 40 |
3NP1123 |
000 00 |
40 40 |
3NE1803-0 |
000 |
35 |
690 |
gS |
6 |
3NP1123 |
000 00 |
35 35 |
3NP1123 |
000 00 |
35 35 |
3NE1813-0 |
000 |
16 |
690 |
gS |
1.5 |
3NP1123 3NP1133 |
000 00 |
16 16 |
3NP1123 3NP1133 |
000 00 |
16 16 |
3NE1814-0 |
000 |
20 |
690 |
gS |
2.5 |
3NP1123 3NP1133 |
000 00 |
20 20 |
3NP1123 3NP1133 |
000 00 |
20 20 |
3NE1815-0 |
000 |
25 |
690 |
gS |
4 |
3NP1123 3NP1133 |
000 00 |
25 25 |
3NP1123 3NP1133 |
000 00 |
25 25 |
3NE1817-0 |
000 |
50 |
690 |
gS |
10 |
3NP1123 3NP1133 |
000 00 |
50 50 |
3NP1123 3NP1133 |
000 00 |
50 50 |
3NE1818-0 |
000 |
63 |
690 |
gS |
16 |
3NP1123 3NP1133 |
000 00 |
63 63 |
3NP1123 3NP1133 |
000 00 |
63 63 |
3NE1820-0 |
000 |
80 |
690 |
gS |
25 |
3NP1123 3NP1133 |
000 00 |
80 80 |
3NP1123 3NP1133 |
000 00 |
80 80 |
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) Permissible load currents for 3NE8...-0MK
3) 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
4) In the case of cyclic loads, the currents may have to be further reduced (precise values on request).
5) 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.
3NE3..
SITOR semiconductor fuse data |
Permissible load currents 4) of the fuse in 3NP1 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Type 1)2) |
Size |
Rated current In |
Rated voltage 3) |
Operational class |
Required conductor cross-section Cu |
Type |
Size |
Floor mounting |
Type |
Size |
Busbar mounting 5) |
A |
V AC |
mm2 |
A |
A |
|||||||
3NE3221 |
1 |
100 |
1000 |
aR |
35 |
3NP1143 |
1 2 |
88 95 |
3NP1143 |
1 2 |
95 100 |
3NE3222 |
1 |
125 |
1000 |
aR |
50 |
3NP1143 3NP1153 |
1 2 |
102 110 |
3NP1143 3NP1153 |
1 2 |
113 125 |
3NE3224 |
1 |
160 |
1000 |
aR |
70 |
3NP1143 3NP1153 |
1 2 |
130 140 |
3NP1143 3NP1153 |
1 2 |
140 150 |
3NE3225 |
1 |
200 |
1000 |
aR |
95 |
3NP1143 3NP1153 |
1 2 |
163 175 |
3NP1143 3NP1153 |
1 2 |
170 180 |
3NE3227 |
1 |
250 |
1000 |
aR |
120 |
3NP1143 3NP1153 |
1 2 |
195 210 |
3NP1143 3NP1153 |
1 2 |
200 215 |
3NE3230-0B |
1 |
315 |
1000 |
aR |
185 |
3NP1153 |
2 |
270 |
3NP1153 |
2 |
265 |
3NE3231 |
1 |
350 |
1000 |
aR |
240 |
3NP1153 |
2 |
290 |
3NP1153 |
2 |
280 |
3NE3232-0B |
1 |
400 |
1000 |
aR |
240 |
3NP1153 |
2 |
320 |
3NP1153 |
2 |
310 |
3NE3233 |
1 |
450 |
1000 |
aR |
2 x 150 |
3NP1153 |
2 |
360 |
3NP1153 |
2 |
330 |
3NE3332-0B |
2 |
400 |
1000 |
aR |
240 |
3NP1153 3NP1163 |
2 3 |
330 360 |
3NP1163 -- |
3 -- |
360 -- |
3NE3333 |
2 |
450 |
1000 |
aR |
2 x 150 |
3NP1163 |
3 |
375 |
3NP1163 |
3 |
390 |
3NE3334-0B |
2 |
500 |
1000 |
aR |
2 x 150 |
3NP1163 |
3 |
420 |
3NP1163 |
3 |
415 |
3NE3335 |
2 |
560 |
1000 |
aR |
2 x 185 |
3NP1163 |
3 |
475 |
3NP1163 |
3 |
460 |
3NE3336 |
2 |
630 |
1000 |
aR |
2 x 185 |
3NP1163 |
3 |
540 |
3NP1163 |
3 |
500 |
3NE3337-8 |
2 |
710 |
900 |
aR |
2 x (40 x 5) |
3NP1163 |
3 |
580 |
3NP1163 |
3 |
500 |
3NE3338-8 |
2 |
800 |
800 |
aR |
2 x 240 |
3NP1163 |
3 |
605 |
3NP1163 |
3 |
500 |
3NE3340-8 |
2 |
900 |
690 |
aR |
2 x (40 x 8) |
3NP1163 |
3 |
630 |
3NP1163 |
3 |
500 |
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) Permissible load currents for 3NE8...-0MK
3) 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
4) In the case of cyclic loads, the currents may have to be further reduced (precise values on request).
5) 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.
3NE4..
SITOR semiconductor fuse data |
Permissible load currents 4) of the fuse in 3NP1 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Type 1)2) |
Size |
Rated current In |
Rated voltage 3) |
Operational class |
Required conductor cross-section Cu |
Type |
Size |
Floor mounting |
Type |
Size |
Busbar mounting 5) |
A |
V AC |
mm2 |
A |
A |
|||||||
3NE4101 |
0 |
32 |
1000 |
gR |
6 |
3NP1143 |
1 |
30 |
3NP1143 |
1 |
32 |
3NE4102 |
0 |
40 |
1000 |
gR |
10 |
3NP1143 |
1 |
35 |
3NP1143 |
1 |
40 |
3NE4117 |
0 |
50 |
1000 |
gR |
10 |
3NP1143 |
1 |
42 |
3NP1143 |
1 |
50 |
3NE4118 |
0 |
63 |
1000 |
aR |
16 |
3NP1143 |
1 |
55 |
3NP1143 |
1 |
60 |
3NE4120 |
0 |
80 |
1000 |
aR |
25 |
3NP1143 |
1 |
71 |
3NP1143 |
1 |
76 |
3NE4121 |
0 |
100 |
1000 |
aR |
35 |
3NP1143 |
1 |
84 |
3NP1143 |
1 |
93 |
3NE4122 |
0 |
125 |
1000 |
aR |
50 |
3NP1143 |
1 |
107 |
3NP1143 |
1 |
115 |
3NE4124 |
0 |
160 |
1000 |
aR |
70 |
3NP1143 |
1 |
134 |
3NP1143 |
1 |
144 |
3NE4327-0B |
2 |
250 |
800 |
aR |
150 |
3NP1153 3NP1163 |
2 3 |
195 215 |
3NP1153 3NP1163 |
2 3 |
220 220 |
3NE4330-0B |
2 |
315 |
800 |
aR |
240 |
3NP1153 3NP1163 |
2 3 |
240 270 |
3NP1163 -- |
3 -- |
255 -- |
3NE4333-0B |
2 |
450 |
800 |
aR |
2 x (30 x 5) |
3NP1163 |
3 |
370 |
3NP1163 |
3 |
355 |
3NE4334-0B |
2 |
500 |
800 |
aR |
2 x (30 x 5) |
3NP1163 |
3 |
410 |
3NP1163 |
3 |
390 |
3NE4337 |
2 |
710 |
800 |
aR |
2 x (50 x 5) |
3NP1163 |
3 |
540 |
3NP1163 |
3 |
500 |
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) Permissible load currents for 3NE8...-0MK
3) 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
4) In the case of cyclic loads, the currents may have to be further reduced (precise values on request).
5) 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.
3NE8..
SITOR semiconductor fuse data |
Permissible load currents 4) of the fuse in 3NP1 |
||||||||
---|---|---|---|---|---|---|---|---|---|
Type 1)2) |
Size |
Rated current In |
Rated voltage 3) |
Operational class |
Required conductor cross-section Cu |
Type |
Size |
Floor mounting |
Busbar mounting 5) |
A |
V AC |
mm2 |
A |
A |
|||||
3NE8015-1 |
00 |
25 |
690 |
gR |
4 |
3NP1133 |
00 |
25 |
25 |
3NE8003-1 |
00 |
35 |
690 |
gR |
6 |
3NP1133 |
00 |
32 |
35 |
3NE8017-1 |
00 |
50 |
690 |
gR |
10 |
3NP1133 |
00 |
43 |
50 |
3NE8018-1 |
00 |
63 |
690 |
gR |
16 |
3NP1133 |
00 |
52 |
60 |
3NE8020-1 |
00 |
80 |
690 |
aR |
25 |
3NP1133 |
00 |
65 |
72 |
3NE8021-1 |
00 |
100 |
690 |
aR |
35 |
3NP1133 |
00 |
85 |
85 |
3NE8022-1 |
00 |
125 |
690 |
aR |
50 |
3NP1133 |
00 |
100 |
100 |
3NE8024-1 |
00 |
160 |
690 |
aR |
70 |
3NP1133 |
00 |
120 |
115 |
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) Permissible load currents for 3NE8...-0MK
3) 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
4) In the case of cyclic loads, the currents may have to be further reduced (precise values on request).
5) 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.
NOTE
If using smaller cross-sections, a considerably higher derating is required due to the lower heat dissipation.