Switch disconnectorsSwitch disconnectors
Technical specifications
General technical details
Standards |
IEC 60947-1, IEC 60947-3, VDE 0660 Part 107 |
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Type |
3NJ410 |
3NJ412 |
3NJ413 |
3NJ414 |
3NJ56 |
3NJ415 |
3NJ418 |
3NJ416 |
3NJ417 |
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Conventional thermal current |
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Free-air with gG fuses, Ith |
A |
160 |
250 |
400 |
630 |
1250 |
630 |
800 |
1260 |
1600 |
|
Free-air with isolating blade, Ith |
A |
-- |
-- |
-- |
800 |
-- |
1000 |
1250 |
1600 |
2000 |
|
Free-air with gTr fuses, Ith |
A |
-- |
-- |
-- |
-- |
1154 |
722 |
910 |
1154 |
1444 |
|
Rated apparent power of the transformer, Sn |
kVA |
-- |
-- |
-- |
-- |
800 |
500 |
630 |
800 |
1000 |
|
For fuse links and isolating blades |
Size |
00 |
1 |
2 |
3 |
4a |
3 |
3 |
2 x 3 |
2 x 3 |
|
gG according to IEC 60269, In |
A |
160 |
250 |
400 |
630 |
1250 |
630 |
800 |
2 x 630 |
2 x 800 |
|
Free-air with isolating blade, In |
A |
-- |
-- |
-- |
-- |
-- |
1000 |
1250 |
2 x 800 |
2 x 1000 |
|
gTr according to VDE 0636-2011, Irat |
A |
-- |
-- |
-- |
-- |
1154 |
722 |
909 |
2 x 577 |
2 x 722 |
|
gTr according to VDE 0636-2011, Sn |
kVA |
-- |
-- |
-- |
-- |
800 |
500 |
630 |
2 x 400 |
2 x 500 |
|
Rated operational voltage (Ue) |
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|
V |
690 |
690 |
690 |
690 |
690 |
690 |
400 |
690 |
400 |
|
Rated insulation voltage (Ui) |
V |
800 |
1000 |
1000 |
1000 |
1000 |
1000 |
690 |
1000 |
690 |
|
Rated impulse withstand voltage (Uimp) |
kV |
8 |
12 |
12 |
12 |
12 |
12 |
8 |
12 |
8 |
|
Rated conditional short-circuit current with fuses, at 500 V AC |
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With gG fuse (rms value) |
kA |
80 / 120 |
120 |
120 |
120 |
80 |
120 |
50 |
80 |
50 |
|
With gTr fuse (rms value) |
kA |
-- |
-- |
-- |
-- |
-- |
-- |
50 |
-- |
-- |
|
Max. permissible power loss per fuse link |
W |
12 |
32 |
45 |
48 |
110 |
51 |
61 |
48 |
51 |
|
Rated short-time withstand current ICW in interlocking position and when using isolating blades instead of fuse links ("Fuseless switch disconnector"), 3-pole switchable version (exception: 3NJ414: 1-pole without interlocking position and 3-pole switchable), rms values |
kA |
-- |
-- |
-- |
10 / 15 |
-- |
15 |
15 |
25 |
25 |
|
Rated making and breaking capacity |
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AC-21B |
400 V AC |
A |
160 |
250 |
400 |
630 |
1250 |
630 |
800 |
2 x 630 |
2 x 800 |
AC-22B |
400 V AC |
A |
160 |
250 |
400 |
630 |
1250 |
630 |
800 |
2 x 630 |
2 x 800 |
AC-23B |
400 V AC |
A |
-- |
250 |
400 |
-- |
-- |
-- |
-- |
-- |
-- |
AC-21B |
500 V AC |
A |
160 |
250 |
400 |
630 |
1250 |
-- |
-- |
-- |
-- |
AC-22B |
500 V AC |
A |
160 |
250 |
400 |
630 |
1250 |
-- |
-- |
-- |
-- |
AC-23B |
500 V AC |
A |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
AC-21B |
690 V AC |
A |
100 |
250 |
400 |
630 |
1250 |
-- |
-- |
-- |
-- |
AC-22B |
690 V AC |
A |
100 |
250 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
AC-23B |
690 V AC |
A |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
Rated operational current Ie for gTr fuses at |
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AC-22B |
400 V AC |
A |
-- |
-- |
-- |
-- |
-- |
722 |
910 |
2 x 577 |
2 x 722 |
Rated operational current Ie for isolating blades |
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AC-22B |
400 V AC |
A |
-- |
-- |
-- |
-- |
-- |
1000 |
1250 |
2 x 800 |
2 x 1000 |
Permissible ambient temperature |
°C |
-25 ... +55, > 35 °C with derating factors |
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Mechanical endurance, operating cycles |
1400 |
1400 |
800 |
800 |
500 |
800 |
500 |
500 |
500 |
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Electrical endurance, operating cycles |
200 |
200 |
200 |
200 |
100 |
100 |
100 |
100 |
100 |
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Degree of protection |
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With closed fuse carrier, with terminal cover and peripheral cover |
IP30 |
IP30 |
IP30 |
IP30 |
IP30 |
IP30 |
IP30 |
IP30 |
IP30 |
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With open fuse carrier |
IP10 |
IP10 |
IP10 |
IP10 |
IP10 |
IP10 |
IP10 |
IP10 |
IP10 |
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Power loss of the main conducting paths at Ith |
W |
18 |
23 |
54 |
115 |
190 |
275 |
155 |
350 |
375 |
|
Main conductor connection |
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Terminal screws |
M8 |
M10 |
M12 |
M12 |
M16 |
2 x M12 |
2 x M12 |
3 x M12 |
4 x M12 |
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Flat bars |
mm |
20 |
30 |
30 |
30 |
80 |
80 x 10 |
80 x 10 |
-- |
-- |
|
Cable lug, max. conductor cross-section (stranded) |
mm2 |
95 |
240 |
240 |
240 |
2 x 300 |
2 x 300 |
2 x 300 |
3 x 300 |
4 x 300 |
|
Tightening torque |
Nm |
12 ... 15 |
30 ... 35 |
35 ... 40 |
35 ... 40 |
50 ... 60 |
35 ... 40 |
35 ... 40 |
35 ... 40 |
35 ... 40 |
|
Clamp/V terminals |
mm2 |
1.5 ... 70 |
25 ... 300 |
25 ... 300 |
25 ... 300 |
-- |
-- |
-- |
-- |
-- |
|
Fixing screws |
M8 |
M12 |
M12 |
M12 |
M16 |
M12 |
M12 |
M12 |
M12 |
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Required tightening torque for mounting on busbars |
Nm |
16 ... 18 |
35 ... 40 |
35 ... 40 |
35 ... 40 |
35 ... 40 |
50 ... 60 |
35 ... 40 |
35 ... 40 |
35 ... 40 |