Switch disconnectorsSwitch disconnectors
Technical specifications
General technical specifications
Standards |
IEC 60947-1, IEC 60947-3, VDE 0660 Part 7 |
||||
---|---|---|---|---|---|
Type |
3NP50 |
3NP52 |
3NP53 |
3NP54 |
|
Rated uninterrupted current (IU) |
A |
160 |
250 |
400 |
630 |
|
Size |
00 |
1 and 0 |
2 and 1 |
3 and 2 |
Conventional free-air thermal current Ith |
A |
160 |
250 |
400 |
630 |
Rated operational voltage (Ue) |
|||||
|
V |
690 |
|||
|
V |
440 |
|||
|
V |
220 |
|||
Rated insulation voltage (Ui) |
V |
690 1) |
|||
Rated impulse withstand voltage (Uimp) |
kV |
6 |
Operating and short-circuit behavior
Standards |
IEC 60947-1, IEC 60947-3, VDE 0660 Part 7 |
|||||||
---|---|---|---|---|---|---|---|---|
Type |
3NP50 |
3NP52 |
3NP53 |
3NP54 |
||||
Rated conditional short-circuit current with fuses (by fast switch on) |
||||||||
|
Size/A |
00/160 |
1/250 |
2/400 |
3/630 |
|||
|
kA |
50 |
50 |
50 |
50 |
|||
|
kA |
15 |
25 |
40 |
50 |
|||
Short-circuit strength with fuses (with closed disconnector) |
||||||||
|
Size/A |
00/160 |
1/250 |
2/400 |
3/630 |
|||
|
kA |
100 |
100 |
50 |
50 |
|||
|
kA2s |
223 |
780 |
2150 |
5400 |
|||
|
kA |
23 |
32 |
40 |
60 |
|||
Rated short-circuit making capacity with isolating blades 2) |
Size |
00 |
1 |
2 |
3 |
|||
|
kA |
6 |
17 |
17 |
17 |
|||
Rated making and breaking capacity 2) (infeed from top or bottom) 3) |
Size |
00 |
1 |
0 |
2 |
1 |
3 |
2 |
Breaking current Ic |
||||||||
|
A |
1300 |
2500 |
1600 |
4000 |
2500 |
5040 |
4000 |
|
A |
800 |
1280 |
100 |
2520 |
1600 |
3200 |
2520 |
|
A |
1600 |
2500 |
1600 |
4000 |
2500 |
5040 |
4000 |
Rated operational current Ie |
||||||||
|
A |
160 |
250 |
160 |
400 |
250 |
630 |
400 |
|
A |
160 |
250 |
160 |
400 |
250 |
630 |
400 |
|
A |
160 |
250 |
160 |
400 |
250 |
630 |
400 |
|
A |
100 |
160 |
125 |
315 |
200 |
400 |
315 |
At 220 (440) V DC, with 2 (3) conducting paths series-connected and fuse links: |
||||||||
|
A |
640 |
1000 |
640 |
1600 |
1600 |
2520 |
1600 |
|
A |
160 |
250 |
160 |
400 |
250 |
630 |
400 |
Capacitor switching capacity |
||||||||
|
kvar |
80 |
90 |
150 |
250 |
|||
|
A |
116 |
130 |
216 |
361 |
|||
|
kvar |
100 |
125 |
200 |
300 |
|||
|
A |
110 |
137 |
220 |
330 |
|||
Power loss of the switch at Ith (without power loss of the fuse links) |
||||||||
|
W |
7.8 (16.3) 4) |
7.5 |
15 |
39 |
|||
Maximum power loss of the usable fuses (per fuse) 5) |
W |
12 |
23 |
37 |
50 |
|||
Mechanical endurance, operating cycles |
1600 |
1) When observing degree of pollution 2 (instead of 3) operation is also possible up to Ui=1000 V.
2) Rated making and breaking current according to IEC 60947-3:
ON: I = 10 x Ie (AC-23); 3 x Ie (AC-22); 1.5 x Ie (AC-21)
OFF: Ie = 8 x Ie (AC-23); 3 x Ie (AC-22); 1.5 x Ie (AC-21)
3) When electronic fuse monitoring devices are used, infeed must be from the top.
4) With busbar adapter.
5) Values are valid when using LV HRC fuse systems with characteristic gG. If using fuses for semiconductor protection, refer to chapter Derating values of 3NP5 fuse switch disconnectors when using SITOR fuses.
Main conductor connection
Standards |
IEC 60947-1, IEC 60947-3, VDE 0660 Part 7 |
||||
---|---|---|---|---|---|
Type |
3NP50 |
3NP52 |
3NP53 |
3NP54 |
|
Flat terminal for connection of |
|||||
|
mm2 |
2.5 ... 120 |
6 ... 150 |
16 ... 240 |
16 ... 2 x 240 |
|
mm2 |
16 ... 70 |
16 ... 150 |
16 ... 240 |
16 ... 2 x 240 |
|
mm2 |
16 ... 22 |
22 ... 30 |
22 ... 30 |
22 ... 30 |
|
Nm |
2.5 ... 501) |
35 ... 120 |
-- |
-- |
1) When connecting one conductor. For 2 conductors max. 1 x 50 mm2 and 1 x 35 mm2
Signaling contacts
Type |
IEC 60947-1, IEC 60947-3, VDE 0660 Part 7 |
||||
---|---|---|---|---|---|
Version |
3NP50 |
3NP52 |
3NP53 |
3NP54 |
|
Auxiliary switch 2 NO + 1 NC (accessories) |
The same voltage potential must be applied to the NO and NC contacts |
||||
|
V |
16/6 |
|||
|
V |
A 6.3 ... 0.8 |
|||
Signaling contact for electronic fuse monitoring |
1 NO + 1 NC |
||||
Rated operational current Ie |
|||||
|
A |
0.27 |
|||
|
A |
1.5 |
|||
|
A |
5 |
Other properties
Standards |
IEC 60947-1, IEC 60947-3, VDE 0660 Part 7 |
||||
---|---|---|---|---|---|
Type |
3NP50 |
3NP52 |
3NP53 |
3NP54 |
|
Degree of protection |
|||||
|
IP00, for 3NP52 with terminal clamp connection, IP10 |
||||
|
IP30 |
||||
|
IP10 |
||||
Ambient conditions 1) |
|||||
|
°C |
-25 ... +55 |
|||
|
°C |
-50 ... +80 |
|||
|
Vertical or horizontal installation (switching capacity may be reduced with horizontal installation) |
1) When using isolating blades. If using fuse links, please observe specifications of fuse manufacturer.
2) With busbar adapter