| MAIN TECHNICAL DATA |
Unit |
TJC20-7.2/630 |
| Rated Voltage |
kV |
7,2 |
| Lightning Impulse Withstand Voltage (Peak) |
kV |
60 |
| Short-time (1min) Power-frequency Withstand Voltage |
kV |
32 |
| Rated Frequency |
Hz |
50/60 |
| Rated Current |
A |
630 |
| Rated Short-time Withstand Current |
kA |
6,3 |
| Rated duration of Short-circuit |
s |
4 |
| Rated Breaking Current |
A |
5040 |
| Limiting Breaking Current |
kA |
6,3 |
| Rated Making Current |
kA |
|
| Rated Operating Frequency |
AC-3 |
Operations/h |
|
| AC-4 |
300 |
| Short-time Operating Frequency |
Operations/h |
|
| Utilization Category |
AC |
|
| Electrical Endurance |
AC-3 |
Operations |
2,5x105 |
| AC-4 |
10x104 |
| Mechanical Endurance |
Operations |
3,0x104 |
| Clearance Between Open Contacts |
mm |
4,5~6 |
| Contact Closing Force Due to Bellows and Atmosphere |
N |
70 +/- 10 |
| Counterforce of Contacts at Full Stroke |
N |
120 +/- 10 |
| Circuit Resistance at Min. Rated Contact Force |
µΩ |
≤ 160 |
| Contact Limit Erosion |
mm |
1,5 |
| Mass of Moving Parts |
kg |
0,42 |
| Internal Gas Pressure |
Pa |
≤1,33x10-3 |
| Shelf Life |
Year |
20 |
