EN
RU
Home/Load Break Switch/12kV Indoor Load Break Switch/FN7-12 KV Series Indoor H.V. Load Breaking Switch With Fuse FN7-12 KV Series Indoor H.V. Load Breaking Switch With Fuse
FN7-12 AC high-voltage load switch is a new type of gas-producing indoor high-voltage load switch, suitable for AC 50/60HZ, rated voltage 12kV, three-phase AC power system, as the breaking load current and for closing short-circuit current.
FN7-12R series high-voltage load and fuse combination appliances are based on FN7-12 series high-voltage load switch, adding side operating mechanism, making the installation more simple and convenient, and can meet the different requirements of users.
Electrical ProductsModel Meaning of FN7-12 KV Series Indoor H.V. Load Breaking Switch
Use Conditions of FN7-12 KV Series Indoor H.V. Load Breaking Switch
1. Ambient air temperature not higher than +40°C not lower than -25°C.
2. Altitude not more than 1000m above sea level
3. Relative humidity, daily average not more than 95%, monthly average not more than 90%.
4. The surrounding air should be free from obvious pollution such as corrosive, combustible gases and water vapour bodies.
5. No regular strenuous exercise.
Technical Parameters of FN7-12 KV Series Indoor H.V. Load Breaking Switch
FN7-12 Load break switch with fuse main technical parameter
| Classification | Full type | DS Earth switch at the wire-in end | DX Earth switch at the wire-out end | L Interlock device | R Fuse box | RA String fuse box | F Off device by motor |
| Without tripper | FN7-12 | – | – | – | – | – | – |
| FN7-12DSL | △ | – | △ | – | – | – | |
| FN7-12DXL | – | △ | △ | – | – | – | |
| FN7-12R | – | – | – | △ | – | – | |
| FN7-12DSLR | △ | – | △ | △ | – | – | |
| FN7-12DXLR | – | △ | △ | △ | – | – | |
| With striking tipper | FN7- 12RAF | – | – | – | – | △ | △ |
| FN7-12DSLRAF | △ | – | △ | – | △ | △ | |
| FN7-12DXLRAF | – | △ | △ | – | △ | △ |
Specified parameter
| Rated voltage | Max.voltage | Rated current | Power frequency withstand voltage | 4S heat-stabling current(value) | Machine stabling current(peak) | Short-circuit corntrlling current | Rated switch-off current | Rated transfer current |
| 12 | 12 | 400 | 42/48 | 12.5 | 31.5 | 31.5 | 400 | 1000 |
| 630 | 75/85 | 20 | 50 | 50 | 630 | 1000 |
Rated parameter of fuse box
| Model | Rated voltage(kV) | Rated current(A) | Fuse body rated current |
| SDLA*J | 12 | 40 | 6.3, 10, 16, 20, 31.5, 40 |
| SFLA*J | 12 | 100 | 50, 63, 71, 80, 100 |
| SKLA*J | 12 | 125 | 125 |
Dimensions of FN7-12 KV Series Indoor H.V. Load Breaking Switch
Get in Touch with Liyond
We're here to help! Connect with our team for expert support and personalized solutions.
Related 12kV Indoor Load Break Switch
Check out these related products you might also be interested in.
Get A Quote
Power your projects with long-lasting switchgear and switchgear components from Liyond.
