| NO. |
Designation |
Unit |
Data |
| 20kA |
25kA |
31.5kA |
40kA |
| 1 |
Rated Volt(KV) |
KV |
|
| 2 |
Rated Current(KA) |
A |
630,1000 |
1250,1600 |
1250,1000 |
1600,1250 |
| 1250 |
|
2000,2500 |
3150 |
| 3 |
Rated short circuit breaking current |
kA |
20 |
25 |
31.5 |
40 |
| 4 |
Rated short circuit opening & closing current(summit) |
kA |
50 |
63 |
80 |
100 |
| 5 |
Rated summit withstand current |
kA |
50 |
63 |
80 |
100 |
| 6 |
4S rated short circuit withstand current |
kA |
20 |
25 |
31.5 |
40 |
| 7 |
Rated insulating level |
Industrial-frequency withstand voltage(Rated breaking around) |
KV |
Frature 48 |
| Industrial withstand voltage(Rated breaking around) |
Frature 48 |
| 8 |
Rated operating seguence |
|
Open-0.3s-close&open-180s&open |
| 9 |
Machanism Life |
Time |
1000 |
| 10 |
Rated short circuit breaking current & times |
Time |
30 |
20 |
| 11 |
Rated closing volt(DC)of operating mechanism |
V |
110,220 |
220 |
| 12 |
Rated closing current(DC)of operating mechanism |
A |
71 |
128 |
| 13 |
Rated opening volt(DC)of operating mechanism |
V |
3.0,1.5 |
| 14 |
Rated opening current(DC)of operating mechanism |
A |
110,220 |
| 15 |
Contactoe Distance |
mm |
11±1 |
| 16 |
Extra-Stroke(contactoe spring length) |
mm |
4±1 |
| 17 |
Un-meaning property of three-phase opening,closing brake |
ms |
≤2 |
| 18 |
Sprang time of contactor closed |
ms |
≤2 |
| 19 |
Average opening brake(6mm height) |
m/s |
1.2±0.3 |
| 20 |
Average opening speed |
m/s |
0.6±0.2 |
| 21 |
Opening time |
Under max opening volt |
s |
≤0.08 |
| Under min opening volt |
≤0.06 |
| 22 |
Closing time |
s |
≤0.02 |
| 23 |
Main circuit resistance if each phase |
μ Ω |
≤40 |
≤0.02 |
| 24 |
Permitted wear thickness of movable and stationary contactor |
mm |
3 |
| 25 |
Buffering strokr of oil butter |
mm |
10 |
