Main Technical Parameters
| Qauv | KJ20-250 | TSI 20-400 |
| Main Circuit Court ntsuas voltage (V) | 2000 | 2000 |
| Main Circuit Court ntsuas tam sim no (A) | 250 | 400 |
| Kev tsim hluav taws xob tseem ceeb (A / 100 Ops.) | 2500 | 4000 |
| Lub peev xwm ua kom lub zog loj (A/25 Ops.) | 2000 | 3200 |
| Muaj peev xwm tawg siab tshaj plaws (A/3 Ops.) | 3200 | 4000 |
| Hluav taws xob lub neej AC3 (Million zaug) | 600000 | 600000 |
| Hluav taws xob lub neej AC4 (Million zaug) | 60000 | 60000 |
| Mechanical life (Million times) | 1000000 | 1000000 |
| Rated ua haujlwm zaus AC3 (Ops./h) | 600 | 600 |
| Rated ua haujlwm zaus AC4 (Ops./h) | 120 | 120 |
| Lub sijhawm luv luv ua haujlwm zaus Ops./h(20S) | 2000 | 2000 |
| Clearance nruab nrab ntawm kev sib cuag qhib (mm) | 3 ± 0.5 | 3 ± 0.5 |
| Hla mus ncig (mm) | ≥1 | ≥1.2 |
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