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Top seller FZ(R)N25-12D AC high voltage vacuum load break switch
FZ(R)N25-12D/T630-20 indoor high voltage three-poles vacuum load break switch is appropriate to protect and control electrical system in mining industrial enterprise, power station, transformer substation. They are mainly used to close and break load current, closed loop current, non-load transformer, cable charging current.
FZRN25-12D/T125-31.5 type 50Hz indoor alternating current load break switch -fuse protector combination have both manual and electrical operation mechanism to realize three control requirement of electric system. Assembled earth switch can bear short circuit current.
FZN25-12D,FZRN25-12D vacuum contactor and assembled electric equipment can be used for three-poles circuit grid and urban terminal power supply distribution and industrial power equipment. Assembled equipment is more reliable, economical than circuit breaker in protection of circuit grid, bi-radial power supply unit and cabinet transformer substation. Manual operation routine is in the right hand of load break switch. We can also supply front or left operation according to customer’s requirement.
Ambient condition
1 Ambient temperature: max +40°C min -25°C(conveyance under -30°C is allowed), average temperature ≤35°C within 24 hours
2 Altitude: ≤1000m
3 Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity≤90%
4 Earthquake intensity: ≤8 degree
5 Air contamination degree: II degree
6 The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution
7 Non-frequent violent vibration.
Order instruction
Complete model and order quantity of the product
Rated current, rated voltage, rated voltage of operation mechanism
Need panel, earth switch, fuse protector or not, what is the rated current and quantity of fuse protector
Required accessory and quantity
Other requirement please contact with us directly
Main Technical Data
Main Technical Data |
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Type |
| FZN25-12D/T630-20 | FZN25-12D/T125-31.5 | ||
Rated voltage | kv | 12 | |||
Rated frequency | Hz | 50 | |||
Rated current | A | 630 | 1250 | ||
Rated short-time power frequency withstand voltage(1 min) | kv | Fructure of vacuum interrupter 30 | |||
Rated short-time power frequency withstand voltage (valid) | kv | Interphase or to ground 42,fructure 48 | |||
Rated lighting impulse withstand voltage | kv | Interphase or to ground 75,fructure 85 | |||
Rated dynamic stability current (peak) | kA | 50 |
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4S thermostability current | kA | 20 |
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Rated breaking current of active load | A | 630 |
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Rated breaking current of close loop | A | 630 |
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Rated breaking current of cable charging current | kA | 10 |
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Rated capacitor volume of breaking non-load | kv | 1600 | |||
Rated transfor current | v |
| 2000 | ||
Model od fuse protector |
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| SDLAJ-12 | ||
Output of energy of collider |
| 2~5 | |||
Rated dynamic stability current of earth switch | kA | 50 | |||
2S dynamic stability current of earth switch | kA | 20 | |||
Rated voltage of assist circuit | v | AC,DC220 AC,DC110 | |||
Mechanical life | times | 10000 | |||
Opening time triggered by fuse protector | ms | 30~40 | |||
Opening time triggered by release | ms | 40~50 | |||
Top seller FZ(R)N25-12D AC high voltage vacuum load break switch