Customization: | Available |
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Type: | Switch Cabinet |
Current: | AC |
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Main Technical Parameters | |||||
Project | Unit | Gircuit bresker unit | Load switch unit | Fuse assembly electrical unit | |
Rated voltage | KV | 12 | 12 | 12 | |
Rated frequency | Hz | 50 | 50 | 50 | |
Rated current | A | 630/1250 | 630/1250 | Depends on the fuse current rating | |
Rated insulation level |
Power frequency withstand voltage (phase to phase and relative) |
KV | 42 | 42 | 42 |
Power frequency withstand voltage (vacuum fracture, isolation fracture) |
48 | 48 | 48 | ||
Power frequency withstand voltage (control and auxiliary circuits) |
2 | 2 | 2 | ||
Lightning impact withstand voltage (phase to phase and relative) |
75 | 75 | 75 | ||
Lightning impact withstand voltage (vacuum fracture, isolation fracture) |
85 | 85 | 85 | ||
Rated short-time withstand current | kA | 20(25)/4S | 20(25)/4S | ______ | |
Rated peak tolerable current | kA | 50(63) | 50(63) | ______ | |
Rated short-circuit closing current | kA | 50(63) | 50(63) | Limited by the high woltage fuse | |
Rated short-circuit breaking current | kA | 20(25) | 20(25) | Limited by the high woltage fuse | |
Rated transfer current | A | ______ | ______ | 1700 | |
Rated active load breaking current | A | ______ | ______ | ______ | |
Rated closed-loop breaking current | A | 630 | 630 | ______ | |
Internal arc test AFLR class | kA/S | 20(25)/0.5S | 20(25)/0.5S | ______ | |
Partial discharge(1.2Ur) | PC | ≤10 | ≤10 | ______ | |
Protection class (cabinet) | IP4X | IP4X | IP4X | ||
Main circuit resistance | uΩ | ≤120 | ≤120 | ______ | |
Mechanical life | Circuit breaker/load switch | kA | 10000 | 10000 | 10000 |
solation/groundingswitch | 3000 | 3000 | 3000 |
Outline and mounting dimensions drawing: