High Voltage Indoor Load Break Switch Fn5-12 (R) D

High Voltage Indoor Load Break Switch Fn5-12 (R) D

Normal Service Conditions:
1.Elevation high under 1000m.
2.The environment temperature is not higher than 95%,and monthly average value not higher than 90%.
3.The earthquake intensity is not over 8degree.

描述.jpg

FN7-12 indoor high voltage load break switch,which can also be,fuse combination switch,and can be amounted with earthing switch.The switch has three station arc distinguishing chambers,separately for connecting,disconnecting and earthing.
FN7-12 can be widely applied to three phases AC power system of 10Kv,50HZ.When there is a current error in
the circuit,it can response in time and protect power system.

Technical Specifications

No.	Item	Unit	Data
No.	Item	Unit
1	Rated voltage	kV	12	12
2	Rated Current	A	400	630
3	Rated Frequency	Hz	50	50
4	Vacuum switch rated short-timewithstand current/rated Short-circuit lasting time	kA/S	12.5/4	20/4
5		kA/S	12.5/4	20/4
6	Rated peaking withstand current and rated short circuit cut-in current	kA	31.5	50
7	Breaking capacity(A)	A	400	630
8	Rated power frequency withstand voltage	kV	42/48	42/48
9	Rated lightning impluse withstand voltage	kV	75/85	75/85
10	Rated transfer current	A	1000	1000