1. FN7 Type 10kv 11kv 12kv High Voltage Indoor Air Load Break Switch

FN7- 12DR Model 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.
 
2. Normal Serviec Condition
 
1,The altitude does not exceed 1000m.2,The ambient air temperatrue : Max:+40oC. Min:-25oC.
2,The relatire humidity of air Daily average ≤95% . Monthly average ≤90%
3,The ambient air should not be obviously polluted by corrosivity or the flammability gas steam.Etc.
4,The working situation without frequent violent.
 
3. Data
 

 
4. Specified parameter
 

Rated parameter of fuse box

 
5. Characteristics
 
small size
light weight
simple & reasonable structure
small operating force
reliable performance & convenient maintenance
 
 
6. Technical detail
 

 

7. Factory