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Indoor Three Phase AC High Voltage 12KV Load Isolating Break Switch
Product details
FN7- 12DR Model Indoor AC HV Load Switch is suitable in 50Hz, rated voltage of 12Kv the three- -phase AC power system as the breaking load short-circuit current of the power and used the Closing, until the combination of electrical short-circuit current can be breaking any current can be used as protection purposes.


Ratings
Rated voltage(KV) |
12 |
||
Insulation level |
1min frequency voltage(KV) |
Phase to phase,to earth 42 |
Isolation fracture48 |
Lightning impulse withstand voltage(KV) |
Phase to phase,to earth 75 |
Isolation fracture85 |
|
Rated current(A) |
400 |
630 |
|
4S Rated thermal current(KA) |
12.5 |
20 |
|
Rated active load breaking current(KA Peak) |
31.5 |
50 |
|
Rated short circuit making current(KA peak) |
31.5 |
50 |


Product descriptions
Ambient condition |
1. The altitude: under 1000M. 2. The ambient temperature: -25℃-+40℃. 3. The relative humidity of air: monthly≤90%, daily≤95%. 4. Ampitude: Earthquake degree 8. 5. Aplication occasions should free from fire, inflammables, explosives,corrosives and severe vibration.
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