Customization: | Available |
---|---|
Breaking Capacity: | Low Voltage Circuit Breakers |
Operation: | Electric Type |
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Parameter |
Unit |
Value |
Rated voltage |
kV |
12 |
Rated frequency |
Hz |
50 |
Rated current |
A |
630 |
Rated short-circuit breaking current |
kA |
20 |
Rated peak withstand current (peak) |
kA |
50 |
Rated short-time withstand current |
kA |
20 |
Rated short-circuit making current (peak value) |
kA |
50 |
Mechanical life |
times |
10000 |
Rated short-circuit breaking current breaking |
times |
30 |
Power frequency withstand voltage (1min): (wet) (dry) phase-to-phase, to ground/to fracture |
kV |
42/48 |
Lightning impulse withstand voltage (peak value) phase-to-phase, to ground/ to fracture |
kV |
75/85 |
Secondary circuit 1min power frequency withstand voltage |
kV |
2 |
1. The environment temperature: upper limit +40ºC, lower limit -30ºC
2. Altitude ≤ 2000 meters
3. Wind pressure: no more than 700Pa (corresponding to the wind speed 34m/s)
4. Earthquake intensity: do not exceed 8 degree
5. Pollution grade: III class
6. Maximum daily temperature: less than 25ºC .
Q2:How do you control the quality ?
A2:Professional QC team comply with TQM insure you the quality. Each step is in compliance to the standards,At the same time ,we will take photos or shoot video for you.