Product Details
205 Embedded Pole
The 205 embedded pole combines a vacuum interruption component with pole insulation for circuit breaker assembly, subject to matching the interrupter and operating mechanism.
Technical Description
The 205 pole is a component for vacuum circuit breaker assembly, combining the interruption element with external insulation. Selection depends on the specified interrupter, upper and lower conductor connections, mounting holes and drive connection. The operating mechanism must provide the required travel, overtravel and contact force. Define whether the supply includes the complete pole, connection pieces and fasteners. Breaking performance must be established for the corresponding assembled configuration rather than inferred from the pole designation.
Technical specifications
| Parameter | Value / conditions |
|---|---|
| Rated voltage | 12 kV |
| Rated current | 1250 A |
| Rated frequency | 50/60 Hz |
| Rated peak withstand current | 80 kA |
| Rated short-time withstand current (4 s) | 31.5 kA |
| Power-frequency withstand voltage (1 min) | 48 kV |
| Lightning impulse withstand voltage (peak) | 85 kV |
| Circuit resistance at rated contact force | ≤25 μΩ |
| Partial discharge | ≤5 pCCatalog test voltage: 13.2 kV. |
| Contact erosion limit | 3 mm |
Values apply to the listed configuration. Use the matching drawing when specifying interfaces.
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