Vacuum Circuit Breaker(VCB)12KV 24KV 36KV BKZF-12 Drawout vacuum LBS
BKZF(R)-12 Medium Voltage Drawout type
Type: AC contactor
Specifications:
Main technical parameters:
NO. |
Parameters |
Unit |
Value |
||||||
BKZC(R)-12-630/400/250 |
BKZC(R)-12-630/400/250 |
||||||||
1 |
Rated Voltage |
kV |
7.2 |
12 |
|||||
2 |
Rated Current |
A |
630 |
400 |
250 |
630 |
400 |
250 |
|
3 |
Rated closing current (rms) |
A |
6300 |
4000 |
2500 |
6300 |
4000 |
2500 |
|
4 |
rated breaking current |
5040 |
3200 |
2500 |
5040 |
3200 |
2500 |
||
5 |
4S thermal current |
6300 |
4000 |
2500 |
6300 |
4000 |
2500 |
||
6 |
Limit breaking current |
6300 |
4000 |
2500 |
6300 |
4000 |
2500 |
||
7 |
Power frequency withstand voltage |
kV |
32 |
42 |
|||||
8 |
operating frequency |
Times/h |
300 |
||||||
9 |
Electric life time |
AC-3 |
×104 Times |
25 |
|||||
AC-4 |
10 |
||||||||
10 |
Mechanical life |
30 |
|||||||
11 |
Rated operating voltage |
V |
AC110/220 |
||||||
12 |
Closing coil pull current |
A |
≤ DC6/3 |
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13 |
Holding coil holding current |
D:DC0.32/0.16 |
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14 |
Shunt trip coil current |
J:DC2.5/1.3 |
NO. |
Parameters |
Unit |
Value |
|
BKZC(R)-12-630/400/250 |
BKZC(R)-12-630/400/250 |
|||
1 |
contact distance |
mm |
4.5+1.0/-0.5 |
6+1.0-0.5 |
2 |
contact overtravel |
1.5±0.5 |
||
3 |
Average closing speed |
m/s |
0.1~0.25 |
|
4 |
Average opening speed |
0.3~0.6 |