Switch disconnectorsSwitch disconnectors
Technical specifications 3LD3
General technical details
Standards |
IEC 60947-3 (VDE 0660-107), EN 60204-1 (VDE 0113-1) |
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Article number |
3LD30... |
3LD31... |
3LD32... |
3LD33... |
3LD34... |
|
Rated uninterrupted current |
A |
16 |
25 |
32 |
40 |
63 |
Rated insulation voltage |
V |
690 |
690 |
690 |
690 |
690 |
Rated operational voltage for AC at 50/60 Hz |
V |
690 |
690 |
690 |
690 |
690 |
Operating frequency |
Hz |
50 ... 60 |
50 ... 60 |
50 ... 60 |
50 ... 60 |
50 ... 60 |
Impulse withstand voltage, rated value |
kV |
6 |
6 |
6 |
6 |
6 |
Short-time withstand current (ICW) limited to 1 s, Rated value |
kA |
0.5 |
0.5 |
0.5 |
1 |
1 |
Design of fuse link required for short-circuit protection of the main circuit |
Fuse |
Fuse |
Fuse |
Fuse |
Fuse |
|
Conditional short-circuit current with line-side fuse at 690 V via gG fuse, rated value |
kA |
6 |
6 |
6 |
6 |
6 |
Let-through current with closed switch at 690 V for combination switch + gG fuse, max. permissible |
kA |
3 |
3.5 |
4.5 |
5 |
6 |
Typical power loss for each conductor |
W |
0.5 |
1.1 |
1.1 |
1.8 |
4.5 |
Typical mechanical endurance (operating cycles) |
100 000 |
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Electrical endurance (operating cycles) at AC-23A at 690 V at 50/60 Hz |
6000 |
Operational power and ambient temperature
Standards |
IEC 60947-3 (VDE 0660-107), EN 60204-1 (VDE 0113-1) |
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Article number |
3LD30... |
3LD31... |
3LD32... |
3LD33... |
3LD34... |
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Rated operational power |
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AC-3 motor load switch Operational switching of individual motors |
|
kW |
3 |
4 |
5.5 |
7.5 |
11 |
|
kW |
5.5 |
7.5 |
9.5 |
11.5 |
18.5 |
|
|
kW |
5.5 |
7.5 |
9.5 |
11.5 |
15 |
|
AC-23A main control switches, repair switches Frequent, but not operational switching of individual motors |
|
kW |
3 |
4 |
6 |
7.5 |
11 |
|
kW |
7.5 |
9.5 |
11.5 |
18.5 |
22 |
|
|
kW |
7.5 |
9 |
11.5 |
15 |
18.5 |
|
Ambient temperature |
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During operation |
°C |
-25 ... +55 |
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During storage |
°C |
-25 ... +55 |
Connection and auxiliary switches
Standards |
IEC 60947-3 (VDE 0660-107), EN 60204-1 (VDE 0113-1) |
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Article number |
3LD30... |
3LD31... |
3LD32... |
3LD33... |
3LD34... |
|
Type of connectable conductor cross-sections |
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2 x (0.75 ... 2.5 mm2), 1 x 4 mm2 |
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2 x (0.75 ... 1.5 mm2), 1 x 2.5 mm2 |
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2 x (0.75 ... 2.5 mm2), 1 x 4 mm2 |
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1 x (2.5 ... 16 mm2) |
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1 x (2.5 ... 16 mm2) |
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1 x (2.5 ... 16 mm2) |
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Design of electrical connection |
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Box terminals |
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Terminals |
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Auxiliary switches |
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Design of fuse link required for short-circuit protection of the auxiliary switch |
Fuse gL/gG: 10 A |
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Insulation voltage for the auxiliary switch, rated value |
V |
500 |