| Customization: | Available |
|---|---|
| Rated Voltage: | 12kv |
| Rated Frequency: | 50Hz |
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FZN25 vacuum load switch and combination electrical appliance, suitable for three-phase AC 50Hz loop network or terminal power supply and industrial electrical equipment, used for load control and short circuit protection. The load switch separates and closes the load, closed-loop current, no-load transformer, and cable charging current. The combination electrical appliance can be disconnected to any current up to the rated short-circuit current. Adopting direct action isolation fracture and vacuum arc chamber linkage. Equipped with manual and electric functions.
The unique transmission structure design of FZN25 allows the arc extinguishing chamber to withstand high voltage only at the moment of closing and breaking, resulting in small volume and light weight.
FZN25 can achieve one-time operation of isolating and extinguishing chamber fractures.
FNZ25 has a grounding valve that is interlocked with the grounding switch between the static contact and the moving contact conductive cylinder, ensuring safety and facilitating maintenance.
| Main technical parameters | ||||
| Projects | nuit | parameter | ||
| FZN25-12D/T630-20 | FZN25-12R.D/T125-31.5 | |||
| Rated voltage | kV | 12 | ||
| Rated frequency | Hz | 50 | ||
| Current rating | A | 630 | 125 | |
| Rated insulation level | 1min power frequency withstand voltage | KV | arc extinguishing chamber fracture 30; to the ground, interphase 42; Isolation fracture 48 | |
| Withstand lightning impulse voltage | KV | to the ground, phase 75; Isolation fracture 85 | ||
| Rated Dynamic and Stable Current (Peak) | KA | 50 | ||
| 4S thermally stable current | KA | 20 | ||
| Rated active load breaking current | A | 630 | 125 | |
| Rated closed-loop interrupting current | A | 630 | 125 | |
| Rated cable charging breaking current | A | 10 | 10 | |
| Interrupt no-load transformer capacity | KVA | 1250 | 1250 | |
| Rated short-circuit interrupting current | KA | 31.5 | ||
| Rated transfer current, rated transfer current | A | 2000 | ||
| Fuse model | SDLAJ-12 SFLAJ-12 | |||
| The impactor outputs energy | J | 2~5 | ||
| Rated short-circuit closing current | KA | 50 | ||
| The grounding switch is rated for dynamic stabilization current | KA | 50 | ||
| Grounding switch 2S thermal stable current | KA | 20 | ||
| Auxiliary circuit voltage rating | V | AC/CD:220/110 | ||
| Mechanical life | times | 10000 | ||
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