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Home/Load Break Switch/12kV Indoor Load Break Switch/FN7-12DXLRAF Load Break Switch With Impact Fuse With Motorised Switching Device FN7-12DXLRAF Load Break Switch With Impact Fuse With Motorised Switching Device
FN7-12DR AC high-voltage load switch is a new type of gas-producing indoor high-voltage load switch, suitable for AC 50Hz, rated voltage 12KV three-phase AC power system, as the opening and closing of load current and short-circuit current.
FN7 (C)-12 series high-voltage load switch and fuse combination is on the basis of FN7-12 series high-voltage load switch, increase the side operation mechanism, make the installation more simple and convenient, can meet the different requirements of the majority of users.
Electrical ProductsEnvironmental Conditions for Using FN7-12DXLRAF Load Break Switch
1. The upper limit of ambient air temperature: +40 degrees, the lower limit: -25 degrees;
2. The altitude does not exceed 1000m;
3. Relative humidity: the daily average value is not greater than 95%, and the monthly average value is not greater than 90%;
4. The earthquake intensity does not exceed 8 degrees;
5. Places without risk of fire, explosion, chemical corrosion and severe vibration;
6. Pollution level: Level II;
7. The surrounding air should not be significantly polluted by corrosive or flammable gases and water vapor.
FN7-12DXLRAF Load Break Switch Technical parameters
| Item | Unit | Data | |
| Rated voltage | kV | 12 | |
| Rated current | A | 400 | 630 |
| 1min power frequency withstand voltage | kV | 42/48 | |
| 4S thermal stable rated current (effective value) | kA | 12.5 | 20 |
| Dynamic stable current (peak value) | kA | 31.5 | 50 |
| Short circuit making current | kA | 31.5 | 50 |
| Rated breaking current | A | 400 | 630 |
| Rated transfer current | A | 1000 | |
FN7-12DXLRAF load break switch overall dimension drawing reference
FN7 Model Reference
| Type | Model | DS | DX | L | R | RA | F |
| Earthing switch at input terminal | Earthing switch at output terminal | Interlock device | Fuse | Impact release | Power closing device | ||
| No release | FN7-12 | – | – | – | – | – | – |
| FN7-12DSL | △ | – | △ | – | – | – | |
| FN7-12DXL | – | △ | △ | – | – | – | |
| FN7-12R | – | – | – | △ | – | – | |
| FN7-12DSLR | △ | – | △ | △ | – | – | |
| FN7-12DXLR | – | △ | △ | △ | – | – | |
| With impact release | FN7-12RAF | – | – | – | – | △ | △ |
| FN7-12DSLRAF | △ | – | △ | – | △ | △ | |
| FN7-12DXLRAF | – | △ | △ | – | △ | △ |
Note: (-)without (△)with
Ordering instructions
1. Model, name and quantity of load break switch.
2. If equipped with a fuse, please specify the type, rated voltage and rated current of the fuse.
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