Switch disconnectorsSwitch disconnectors
Technical features
3LD main control and EMERGENCY STOP switches |
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3KD switch disconnectors: Box terminals |
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3KD switch disconnectors: Flat terminals |
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Size |
1 |
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Type |
3LD20 |
3LD21 |
3LD22 |
3LD25 |
3KD...-.M |
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3LD main control and EMERGENCY STOP switches |
3KD switch disconnectors |
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Rated current In |
A |
16 |
25 |
32 |
63 |
16 |
32 |
63 |
Number of poles |
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|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
Connection |
||||||||
|
-- |
-- |
-- |
-- |
-- |
-- |
-- |
|
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
Operating mechanisms |
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|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
-- |
-- |
-- |
-- |
✓ |
✓ |
✓ |
|
Operating and short-circuit behavior |
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|
kA |
0.34 |
0.64 |
0.64 |
1.26 |
3 |
3 |
3 |
|
kA rms |
50 |
50 |
50 |
50 |
100 |
100 |
100 |
1) Valid for the combination of 3KD switch disconnector and fuse type 3NA…, characteristic gG
✓ Available
-- Not available
3LD main control and EMERGENCY STOP switches |
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3KD switch disconnectors: Box terminals |
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3KD switch disconnectors: Flat terminals |
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Size |
2 |
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Type |
3LD27 |
3LD28 |
3LD23 |
3KD...-.N |
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3LD main control and EMERGENCY STOP switches |
3KD switch disconnectors |
||||||||
Rated current In |
A |
100 |
125 |
160 |
80 |
100 |
125 |
160 |
200 |
Number of poles |
|||||||||
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
Connection |
|||||||||
|
-- |
-- |
-- |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
-- |
|
Operating mechanisms |
|||||||||
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
-- |
-- |
-- |
✓ |
✓ |
✓ |
✓ |
✓ |
|
Operating and short-circuit behavior |
|||||||||
|
kA |
2 |
2 |
4 |
4 |
4 |
4 |
4 |
4 |
|
kA rms |
50 |
20 |
50 |
65 |
65 |
65 |
65 |
50 |
1) Valid for the combination of 3KD switch disconnector and fuse type 3NA…, characteristic gG
✓ Available
-- Not available
3LD main control and EMERGENCY STOP switches |
||||||||||||
3KD switch disconnectors: Box terminals |
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3KD switch disconnectors: Flat terminals |
![]() |
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Size |
3 |
4 |
5 |
|||||||||
Type |
3LD24 |
3KD....-.P |
3KD....-.Q |
3KD....-.R |
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3LD main control and EMERGENCY STOP switches |
3KD switch disconnectors |
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Rated current In |
A |
250 |
200 |
250 |
315 |
400 |
500 |
630 |
800 |
1000 |
1250 |
1600 |
Number of poles |
||||||||||||
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
Connection |
||||||||||||
|
-- |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
✓ |
-- |
✓ |
✓ |
✓ |
-- |
-- |
-- |
-- |
-- |
-- |
|
Operating mechanisms |
||||||||||||
|
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
|
-- |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
|
Operating and short-circuit behavior |
||||||||||||
|
kA |
4 |
13 |
13 |
13 |
13 |
30 |
30 |
30 |
50 |
50 |
50 |
|
kA rms |
50 |
65 |
65 |
35 |
35 |
65 |
65 |
50 |
-- |
-- |
-- |
1) Valid for the combination of 3KD switch disconnector and fuse type 3NA…, characteristic gG
✓ Available
-- Not available
Further information on 3LD main control and EMERGENCY STOP switches is provided in Chapter Overview of 3LD main control and EMERGENCY STOP switches.