No. | Item | Unit | Data | Data |
1 | Rated voltage | kV | 3.6-12 | 24 |
2 | Rated current | A | 630-3150,4000* | 630-2500 |
3 | Rated short-circuit breaking current | kA | 20-40,50 | 20,25,31.5 |
4 | Rated short-circuit making current | kA | 50-100,125 | 50,63,80 |
5 | Rated peak withstand current of main circuit | kA | 50-100,125 | 50,63,80 |
6 | Rated short-time withstand current of main circuit | kA | 20-40,50 | 20,25,31.5 |
7 | The time for rated short-circuit of main circuit | S | 4 | 4 |
8 | 2s rated short-time withstand current of earth circuit | kA | 20 | 16 |
9 | Rated peak withstand current of earth circuit | kA | 50 | 40 |
10 | 1 min power frequency withstand voltage | Isolation across | kV | 48 | 60 |
Phase-phase and phase-earth | 42 | 50 |
11 | Lighting impulse withstand voltage | Isolation across | kV | 85 | 145 |
Phase-phase and phase-earth | 75 | 125 |
12 | Degree of protection | | IP2X,IP3X,IP4X | IP2X,IP3X |
13 | Dimension(W×H×D) | mm | 800(1000)X2300X1550 | 1000X2300X1750 |