| Customization: | Available |
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| Transport Package: | Wooden Case |
| Specification: | FW1-12/24/36 |
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| NO | Item | Unit | Data | ||
| 1 | Rated Voltage | kV | 12 | 36 | |
| 2 | Rated current | A | 630 | 630 | |
| 3 | Rated power frequency | Hz | 50/60 | 50/60 | |
| 4 | Rated peak withstand current | KA | 50 | 63 | |
| 5 | Rated short-time withstand current | KA | 20 | 25 | |
| 6 | Rated short-time withstand current duration | s | 4 | 4 | |
| 7 | Main loop resistance | μΩ | 12kV≤90 | 36kV≤100 | |
| 8 | 1min(dry) power frequency withstand voltage | Phase to phase/ earth across open contacts |
KV | 42/48 | 95/115 |
| 9 | 1min(wet) power frequency withstand voltage | 30 | 85 | ||
| 10 | Lightning impulse withstand voltage(peak) | 75/85 | 185/215 | ||
| 11 | Mechanical life | Times | 2000 | 2000 | |
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