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Item | Description | Unit | Data | ||
1 | Rated voltage | KV | 24 | ||
2 | Max. voltage | KV | 24 | ||
3 | Rated current | A | 630/1250/2500 | ||
4 | Rated short circuit breaking current | KA | 20/25/31.5 | ||
5 | Rated short circuit making current | KA | 50/63/80 | ||
6 | Rated peak withstand current | KA | 50/63/80 | ||
7 | 4S Rated withstand current | KA | 20/25/31.5 | ||
8 | Rated insulation level | Power frequency voltage(when losing a circuit) | KV | Dreaker 65 | |
Impulse withstand voltage(when losing a circuit) | Dreaker 125 | ||||
9 | Rated operating sequence | OC-0.3s-CO-180S-CO | |||
10 | Mechanical life | Times | 20000 | ||
11 | Rated short circuit current breaking time | Times | 274 | ||
12 | Rated close brake voltage of operating machnie | V | 110,220 | ||
13 | Rated break brake voltage of operating machnie | V | 110,220 | ||
14 | Contact stroke | mm | 13±1 | ||
15 | Exceed range(the compress length of contact sping) | mm | 3.5±0.5 | ||
16 | Different period of three-phase break and close break | ms | ≤2 | ||
17 | The jump time of contact close break | ms | ≤2 | ||
18 | Average break speed | m/s | 1.1~1.7 | ||
19 | Average closing speed | m/s | 0.6~1.1 | ||
20 | Opening time | Ubder max.operating voltage | S | ≤0.05 | |
Under min.operating voltage | ≤0.08 | ||||
21 | Closing time | s | 0.1 | ||
22 | Resistance of each phase main loop | μΩ | 630≤50 1250≤45/ 1600-2500≤40 | ||
23 | Contacts limit ersion | mm | 3 |