| Item |
Unit |
Data |
| 20kA |
25kA |
31.5kA |
40kA |
| Rated voltage |
kV |
12 |
| Rated current |
A |
630, 1000,1250 |
1250,
1600 |
1250,1600
2000,2500 |
1600,2500
3150 |
| Rated short circuit breaking current |
kA |
20 |
25 |
31.5 |
40 |
| Rated short circuit breaking current(peak value) |
kA |
50 |
63 |
80 |
100 |
| Rated peak withstand current |
kA |
50 |
63 |
80 |
100 |
| 4S rated short time withstand current |
kA |
20 |
25 |
31.5 |
40 |
| Rated insulation level |
Power frequency withstand voltage |
kV |
42 (fracture 48) |
| Impulse withstand voltage |
75 (fracture 85) |
| Rated sequence of operations |
|
O-0.3s-CO-180s-CO |
| Mechanical life |
Time |
10000 |
| Breaking times for rated short circuit breaking current |
Time |
30 |
20 |
| Operating device rated closing voltage (DC) |
V |
110,220 |
220 |
| Operating device rated closing current (DC, electromagnetic operation device) |
A |
71 |
128 |
| Operating device rated closing voltage (DC) |
V |
110.220 |
| Operating device rated closing current (DC) |
A |
3.0,1.5 |
| Clearance between open contacts |
mm |
11±1 |
| Overtravel (contact spring reduction length) |
mm |
4±1 |
| Three-phase, switch-on differ synchroneity |
ms |
≤2 |
| Contact switch-on bounce time |
ms |
≤2 |
