Switch disconnectorsSwitch disconnectors
3KD, 6-pole for DC applications up to 1200 V, sizes 1 and 2
General technical details
Standards |
IEC 60947-1, IEC 60947-3 |
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---|---|---|---|---|---|---|---|---|
Type |
3KD16 |
3KD22 |
3KD26 |
3KD28 |
3KD30 |
3KD32 |
3KD34 |
|
Size |
1 |
1 |
1 |
2 |
2 |
2 |
2 |
|
Rated uninterrupted current (IU) |
A |
16 |
32 |
63 |
80 |
100 |
125 |
160 |
Conventional free-air thermal current Ith 1) |
A |
16 |
32 |
63 |
80 |
100 |
125 |
160 |
Rated operational voltage (Ue) |
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|
V |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
|
V |
1000 |
1000 |
1000 |
1000 2) |
1000 2) |
1000 2) |
1000 2) |
Rated insulation voltage (Ui) |
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|
V |
1250 |
1250 |
1250 |
1250 |
1250 |
1250 |
1250 |
|
V |
1000 |
1000 |
1000 |
1000 3) |
1000 3) |
1000 3) |
1000 3) |
Rated impulse withstand voltage (Uimp) |
kV |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
Overvoltage category |
III |
1) Configuring note: Max. permissible operating temperature at connections 110 °C
2) Valid for version with box terminal, version with flat terminal max. 1200 V
3) Valid for version with box terminal, version with flat terminal max. 1250 V
Operating and short-circuit behavior
Standards |
IEC 60947-1, IEC 60947-3 |
|||||||
---|---|---|---|---|---|---|---|---|
Type |
3KD16 |
3KD22 |
3KD26 |
3KD28 |
3KD30 |
3KD32 |
3KD34 |
|
Rated operational current Ie |
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|
A |
16 |
32 |
63 |
80 |
100 |
125 |
160 |
|
A |
16 |
32 |
63 |
80 |
100 |
125 |
160 |
Short-time withstand current Icw |
kA |
3 |
3 |
3 |
4 |
4 |
4 |
4 |
Short-circuit making capacity (Icm) |
kA |
4.3 |
4.3 |
4.3 |
5.7 |
5.7 |
5.7 |
5.7 |
Power loss per pole with thermal current Ith |
W |
0.1 |
0.4 |
1 |
1.1 |
1.8 |
3.2 |
4.6 |
Service life, operating cycles |
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|
15000 |
15000 |
15000 |
15000 |
15000 |
15000 |
15000 |
|
|
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
Main conductor connection
Standards |
IEC 60947-1, IEC 60947-3 |
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---|---|---|---|---|---|---|---|---|
Type |
3KD16 |
3KD22 |
3KD26 |
3KD28 |
3KD30 |
3KD32 |
3KD34 |
|
Conductor cross-section, max. |
mm2 |
35 |
35 |
35 |
70 |
70 |
70 |
70 |
Busbar systems, max. dimensions (number x width x thickness) |
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|
mm |
-- |
1 x 20 x 3 1) |
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|
mm |
1 x 9 x 2 |
1 x 14 x 3 |
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Tightening torque |
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|
Nm |
-- |
15 ... 22 |
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|
Nm |
5 ... 6.5 |
6.5 ... 8 |
1) When using busbars that are 20 mm wide, these must be insulated.
Other properties
Standards |
IEC 60947-1, IEC 60947-3 |
|||||||
---|---|---|---|---|---|---|---|---|
Type |
3KD16 |
3KD22 |
3KD26 |
3KD28 |
3KD30 |
3KD32 |
3KD34 |
|
Degree of protection |
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|
IP20 |
IP20 |
IP20 |
IP20 |
IP20 |
IP20 |
IP20 |
|
|
IP20 |
IP20 |
IP20 |
IP00 2) / IP20 |
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Ambient conditions |
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|
°C |
-25 ... +70 (no derating of Ith at -5 to +40 °C) |
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|
°C |
-50 ... +80 |
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|
Any |
1) With mounting positions other than the vertical, please contact Technical Support.
2) Relevant only for devices with flat terminals