Siemens SENTRON 3KF LV HRC, Руководство пользователя

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3KF switch disconnectors with fuses
Manual, 09/2019, L1V30580914002A-01
109
Technical specifications
10
Regulations IEC 60947-1, IEC 60947-3, VCE 0660 Part 107
Size 1 2 3 4 5
General technical details
Rated uninterrupted current I
u
A 32 63 80 125 160 250 400 630 800
Conventional free-air thermal current
I
th
1)
A
For fuse links acc. to IEC 60269-2 00 and 000 1 and
0
2 and
1
3 and 2
Rated operational voltage U
e
• At 50 Hz / 60 Hz AC (tolerance up to
+10% permissible)
V 690
•
At DC (3 conducting paths series-
connected)
V 440
•
At DC (2 conducting paths series-
connected)
V 220
Rated insulation voltage
U
i
V 1000
Rated impulse withstand voltage
U
imp
kV 12
Overvoltage category IV
Operating and short-circuit behavior
Rated operational current
I
e
2)
• At AC-21A, AC-22A, AC-23A, 400 … 690
V
A 32 63 80 125 160 250 400 630 800
•
At DC-21A, DC-22A, DC-23A, 220 … 440
V
A 32 63 80 125 160 250 400 630 800
Motor switching capacity AC-23A
3)
• At 400 V
kW 15 30 37 55 90 132 220 355 400
• At 500 V
kW 18.5 37 55 75 110 160 280 400 560
•
At 690 V
kW 30 55 75 110 132 250 400 630 800
Rated short-time withstand current
I
cw
(with t = 1 s, rms value, 690 V AC / 440 V
DC)
kA 2.5 5 8 12 22
Rated short-circuit making capacity
I
cm
(at 690 V AC / 440 V DC)
kA 3.55 7.65 13.6 24 44
Rated conditional short-circuit current with
fuse
4)
•
At 400 / 500 V AC
• At 690 V AC
kA
kA
100
100
80