Isolate Switch
1.Type:FN5-12
2.Standard|:IEC420 GB3804
3.Main Material:Procelain&Steel
Outline
FN7——12DRModel 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.
Installation and use of
Ambient air temperature Limit +40°C Lower limit -25°C
Above sea level1000m.
Relative humidity: daily average is less than 95%, on average less than 90%;
The surrounding air should not be corrosive or flammable gases and water vapor and other obvious contamination;
Without frequent violent vibration.
Rated parameters
Rated voltage (KV rms) | 12 | ||
Insulation level | 1min power frequency withstand voltage (KV. RMS) | White. Phase to 42 | Isolation break48 |
Lightning impulse voltage (KV. a peak) | White. Phase to 75 | Isolation break85 | |
Rated Current(A) | 400 | 630 | |
Rated thermal current (KA RMS 4S) | 12.5 | 20 | |
Rated dynamic current KA (peak) | 31.5 | 50 | |
Rated short circuit making current (KA peak) | 31.5 | 50 |
Specifications
Name | Name | All models | DS | DX | L | R | RA | F | Use |
Grounding switch into the line-side | Grounding switch outlet side | Interlock device | Fuse | Impact fuse | Electric sub-gate devices | ||||
Load Switches | Non-impact fuse | FN7—12 | —— | —— | —— | —— | —— | —— | Line load switch |
FN7—12DSL | Y | —— | Y | —— | —— | —— | |||
FN7—12DXL | —— | Y | Y | ||||||
FN7—12R | —— | —— | —— | Y | —— | —— | Transformer Protection | ||
FN7—12DSLR | Y | —— | Y | Y | —— | —— | |||
FN7—12DXLR | —— | Y | Y | Y | —— | —— | |||
With impact fuse | FN7—12RAF | —— | —— | —— | —— | Y | Y | Transformer Protection | |
FN7—12DSLRAF | Y | —— | Y | —— | Y | Y | |||
FN7—12DXLRAF | —— | Y | Y | —— | Y | Y |