FN5-12 Indoor high voltage load switch. Fuse combination appliance
Usage Environment
◆Altitude not exceeding 1000m;
◆Ambient air temperature: upper limit +40℃, lower limit -25℃ (electric mechanism not lower than -5℃);
◆Relative humidity: daily average value is not more than 95%, monthly average value is not more than 90%1+25℃1;
◆The surrounding air should not be obviously polluted by corrosive or flammable gases, water vapor, etc.;
◆No frequent severe vibration.
Technical Parameters
|
Name |
Unit |
Data |
|
|
Rated voltage |
kV |
12 |
|
|
Rated frequency |
Hz |
50 |
|
|
Rated current |
A |
400 |
630 |
|
Rated short-time withstand current (thermal stability current) |
kV |
12.5(4S) |
20(2S) |
|
Rated peak withstand current (dynamic stability current) |
kA |
31.5 |
50 |
|
Rated closed-loop breaking current |
A |
400 |
630 |
|
Rated active load breaking current |
A |
400 |
630 |
|
5% rated active load breaking current |
A |
20 |
31.5 |
|
Rated cable charging breaking current |
A |
10 |
|
|
Rated breaking capacity of no-load transformer |
|
1250 |
|
|
Rated short-circuit making current |
kA |
31.5 |
50 |
|
Load current breaking times |
Second-rate |
20 (100% load) 35) 60% load) 75 (130% load) 80 (5% load) |
|
|
1min power frequency withstand voltage (effective value) |
kV |
To ground and between phases 42 |
|
|
Power frequency withstand voltage (between isolation gaps) |
kV |
48 |
|
|
Lightning impulse withstand voltage (peak) |
kV |
75 for ground and phase to phase, 85 for isolation |
|
|
Opening and closing operation torque (force) |
N.m(N) |
90(180) |
100(200) |