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Product name： | QDS8 series DC fast circuit breaker | |||||
| specification： |   Zoom in on the image |
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| Category： | low-voltage electrical apparatus -- DC circuit breaker | ||||||
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Price： | factory price | |||||
| Brand： | Shanghai | ||||||
| Place of Origin： | China | ||||||
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Available Quantity： | batch | |||||
| delivery cycle： | Spot goods (or inquire by telephone) | ||||||
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| The QDS8 series DC fast circuit breaker is used as a main circuit short circuit and overload protection in subway and light rail vehicles, industrial and mining electric locomotives, and railway traction locomotives. It can also be used as a protective switch for silicon rectification devices and DC motors in industrial fields such as steel rolling and mining, and as a graded protection circuit breaker for small DC feeding devices | |||
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Rated voltage Ue |
1500V |
mechanical life |
30000 times |
|
Rated current In |
1250A |
Operating voltage |
DC110、50V |
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Maximum operating voltage |
1800V |
Number of auxiliary contacts |
6 normally open, 6 normally closed |
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Maximum breaking capacity |
35KA(T=15ms) |
Auxiliary contact capacity |
AC220V 10A,DC110V 1A |
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Breaking overvoltage |
1.5-2.1Ue |
Overall dimensions |
420*165*485 |
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Inherent action time |
2-3ms |
installation dimensions |
4-φ9，130*145mm |
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Current setting range |
0.6*1.25; 0.9*1.8; 1.25*2.7KA |
weight |
<37kg |
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Electrical lifespan |
1000 times |
twelve | |
QDS8 series DC fast circuit breaker
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