| Customization: | Available |
|---|---|
| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Electric Type |
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Vacuum load switch and composite apparatus, suitable for three-phase AC 50Hz ring network or terminal power supply and industrial electrical equipment, for load control and short circuit protection use, load switch open and close the closed loop current, no-load transformer and cable charging current, composite apparatus can break any current till rated short circuit current. Adopt the straight move or isolating fracture and vacuum interrupter linkage. With function of manual and electric operation.
The ambient temperature: -25ºC-+40ºC, alpine region,≥-40ºC
The altitude:≤1000M
Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%
Earthguake intensity: ≤8 degree
The surrounding air is not corrosive and flammable gas, steam and other significant pollution
Contamination grade: Il class
Unique transmission structure design, arc extinguishing chamber only at the moment of closing and breaking withstand high pressure, so small volume and light weight.
It can realize one-time operation of isolation fracture and interrupter fracture.
Between the static contact and the moving contact head guide torch, there is a grounding valve linked with the grounding switch, which not only ensures safety but also facilitates maintenance.
| Name | Unit | Data | |||
| FZN25-12D/T630-20 | FZRN25-12D/T125-31.5 | ||||
| Rated voltage | kA | 12 | |||
| Rated frequency | Hz | 50 | |||
| Rated Current | A | 630 | 125 | ||
| Rated insulation level | 1min frequency voltage | KV | Interr upter Fracture30.on the ground, white 42.solation Fracture48 | ||
| Lightning impulse withstand voltage | KV | On the ground, white 75 solation Fracture85 | |||
| Rated dynamic stability current (peak) | KA | 50 | - | ||
| 4Sthermal current | KA | 20 | - | ||
| Rated active load breaking current | A | 630 | 125 | ||
| Rated closed-Loop breaking current | A | 630 | 125 | ||
| Rated cable charging breaking current | A | 10 | 10 | ||
| Breaking load transformer | KVA | 1250 | 1250 | ||
| Rated short-circuit breaking current | KA | - | 31.5 | ||
| Rated transfer current,rated current transfer | A | 2000 | |||
| Fuse Model | - | SDLAJ-12SFLAJ-12 | |||
| Impact energy output | J | - | 2-5 | ||
| Rated short circuit making current | KA | 50 | |||
| Ground switch rated Dynamic current | 50 | ||||
| Grounding switch 2Sthermal current | KA | 20 | |||
| Secondary circuit Rated voltage | V | AC/CD220;110 | |||
| Mechanical life | times | 1000 | |||
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