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FN7-12R(L) Load Switch
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FN7-12R(L) Load Switch
1. Overload protection
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln
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Product Details
FN7-12R(L) Indoor Load Switch
FN7-12R(L) AC MV load switch used in 50Hz, 12kV three phase AC power system.
FN7- 12R(L) series vacuum circuit breaker is indoor high voltage switch-gear with rated voltage 12kV, three-phase AC 50Hz, which is developed by introducing from Switzerland, ABB corporation technology and analyzing domestic profession development condition, productivity development manufacture product. The overall structure of this product is formed with the switch main body and operating device, uses the compound insulation structure, does not have the pollution and the explosion hazard, and the insulation level is high. This operating device of the series product is for the spring loaded type, can use the electrically operated operation, also can use the manual operation.
Standard: IEC 60265-1,IEC 62271-105.
Selection
Technical data
| Rated voltage(kV) | Highest voltage(kV) | Rated current(A) | Industrial frequency voltage withstand in 1min(kV) | 4S thermal stable current (effective value)(A) |
| 12 | 12 | 400 | 42/48 | 12.5 |
| 12 | 12 | 630 | 42/48 | 20 |
| Active stable current (peak value)(A) | Short circuit close current (A) | Rated open current (A) | Rated transfer current (A) |
| 31.5 | 31.5 | 400 | 1000 |
| 50 | 50 | 630 | 1000 |
| Type | Full type | DS Earthing switch at inlet position |
DX Earthing switch at inlet position |
L Interlocking device |
R Fuse |
R Impulse fuse |
F Electric drive open device |
| Without release |
FN7-12 | - | - | - | - | - | - |
| FN7-12DSL | Δ | - | Δ | - | - | - | |
| FN7-12DXL | - | Δ | Δ | - | - | - | |
| FN7-12R | - | - | - | Δ | - | - | |
| FN7-12DSLR | Δ | - | Δ | Δ | - | - | |
| FN7-12DXLR | - | Δ | Δ | Δ | - | - | |
| With impulse release | FN7-12RAF | - | - | - | - | Δ | Δ |
| FN7-12DSLRAF | Δ | - | Δ | - | Δ | Δ | |
| FN7-12DXLRAF | Δ | Δ | - | Δ | Δ |
Rated data of fuse
| Type | Rated voltage(kV) | Rated current(A) | Rated current of fuse link(A) |
| SDLA*J | 12 | 40 | 6.3, 10, 16, 20, 25, 31.5, 40 |
| SFLA*J | 12 | 100 | 50, 63, 71, 80, 100 |
| SKLA*J | 12 | 125 | 125 |
Overall and mounting dimensions(mm)
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