Vacuum Chamber TJC20-12/400
Vacuum Chamber TJC20-12/400
Parameter
| No. | MAIN TECHNICAL DATA | Unit | 
 | |
| 1 | Rated Voltage | kV | 12 | |
| 2 | Lightning Impulse Withstand Voltage (Peak) | kV | 75 | |
| 3 | Short-time (1min) Power-frequency Withstand Voltage | kV | 42 | |
| 4 | Rated Frequency | Hz | 50/60 | |
| 5 | Rated Current | A | 400 | |
| 6 | Rated Short-time Withstand Current | kA | 4 | |
| 7 | Rated duration of Short-circuit | s | 4 | |
| 8 | Rated Breaking Current | A | 
 | |
| 9 | Limiting Breaking Current | kA | 4 | |
| 10 | Rated Making Current | kA | 4 | |
| 11 | Rated Operating Frequency | AC-3 | Operations/h | 
 | 
| AC-4 | 300 | |||
| 12 | Short-time Operating Frequency | Operations/h | 
 | |
| 13 | Utilization Category | AC | 
 | |
| 14 | Electrical Endurance | AC-3 | Operations | 2.5*105 | 
| AC-4 | 10*104 | |||
| 15 | Mechanical Endurance | Operations | 3.0*105 | |
| 16 | Clearance Between Open Contacts | N | 5.5~7 | |
| 17 | Contact Closing Force Due to Bellows and Atmosphere | N | 70+ -10 | |
| 18 | Counter force of Contacts at Full Stroke | μΩ | 110+ -10 | |
| 19 | Circuit Resistance at Min. Rated Contact Force | mm | <= 160 | |
| 20 | Contact Limit Erosion | 
 | 1.5 | |
| 21 | Mass of Moving Parts | 
 | 0.37 | |
| 22 | Internal Gas Pressure | Pa | <= 1.33*10-3 | |
| 23 | Shelf Life | Year | 20 | |
Outline Dimension drawing
 








