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Technical specifications
Regulations
Size
I
Let-through current
combined with fuse
c
At 400 / 500 V AC
•
At 690 V AC
•
I
t
Let-through
value combined with fuse
2
At 400 / 500 V AC
•
At 690 V AC
•
I
Let-through current
of usable fuses, max.
c
At 400 / 500 V AC
•
At 690 V AC
•
I
t
Let-through
value of usable fuses, max.
2
At 400 / 500 V AC
•
At 690 V AC
•
Power loss per pole of the switch at
(plus fuses)
Maximum power loss of the usable fuses (per
fuse)
For 3KF LV HRC
•
For 3KF SITOR
•
Service life, operating cycles
Mechanical
•
Electrical, at AC-23A, 690 V / 50 ... 60 Hz
•
Electrical, at AC-23A, 440 V / 50 ... 60 Hz
•
Electrical, at DC-23A, 440 V
•
Degree of protection (operator side)
Degree of protection for 3KF LV HRC
With masking plate or cable connection
•
cover
Without masking plate or terminal cover
•
Degree of protection for 3KF SITOR
With masking plate or cable connection
•
cover
Ambient conditions
Ambient temperature during operation
•
Ambient temperature during storage
•
Mounting position
•
110
4)
kA
10.4
kA
11.2
4)
kA²s
33.2
kA²s
40.7
kA
11.8
kA
11.5
kA²s
34
kA²s
55
I
th
W
0.4
1.7
W
6.5
7.5
W
7
8
15000
6000
10000
1500
IP20
IP20
IP00
°C
-25 ... +70
°C
-50 ... +80
Any
IEC 60947-1, IEC 60947-3, VCE 0660 Part 107
1
2
18.2
16.87
150.6
69.64
18
25.5
223
360
208
4.2
7.2
8.5
11
12
12
20
26
12000
5000
8000
1000
IP00
Manual, 09/2019, L1V30580914002A-01
3
4
5
28.7
39.4
58.5
30.31
41.14
49.95
437.0
1205
4100
490.1
1300
2050
33.7
37.1
77.4
37.7
47
65
1500
2150
10400
940
2600
7000
15
26
40
50
25.5
34
48
60
36
55
68
85
10000
8000
6000
1000
4000
2000
5000
3000
1500
500
3KF switch disconnectors with fuses
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