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Help Center12KV FN25-12D,FN25-12DR Series Indoor High Vacuum Load Break Switch
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Specifications
1.Voltage: 12KV2.Current: 630A
3.For breaking or closing load and over-load current
4.Fuse can be allocated
12KV FN25-12D, FN25-12DR Series Indoor High Vacuum Load Break Switch
Use
It is used in the ring network, city distribution and industrial equipment of 12KV and three-phase AC 50Hz to control load and short-circuit. Because the switch with fuse protects transformer etc. more reliably than circuit breaker, it is especially suitable for ring network, double radial distribution and package substation.
Technical parameter
Number |
Name |
Unit |
Parameter |
|
1 |
Rated voltage |
kV |
12 |
|
2 |
Rated current |
Load switch |
A |
630 |
Switch |
125 |
|||
3 |
Rated short-circuit controlling current |
kA |
50 |
|
4 |
Rated short-circuit breaking current |
kA |
31.5 |
|
5 |
Rated power load breaking current |
A |
630 |
|
6 |
4S heat-stabling current |
kA |
20 |
|
7 |
Machine-stabling current |
kA |
50 |
|
8 |
1min power frequency withstand voltage |
kA |
42(Break48) |
|
9 |
Lighting impulse resisting voltage |
kA |
75(Break85) |
|
10 |
Mechanical life |
Times |
3150 |
|
11 |
Rated take-over current(switch with fuse) |
A |
10000 |
|
12 |
Motor operating power voltage |
V |
AC DC |
|
Installation Diagram
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