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The NXB is a SF6-insulated pole mounted switch disconnector suitable for both conventional overhead lines and BLX type lines with insulated conductors and specifically designed for use in modern tele-controlled distribution automation systems. The NXB offers reliable maintenance free operation even in the most demanding climatic conditions including salt laden atmospheres, corrosive industrial pollution, snow and ice.
Technical Specification:
| Rated voltage: | 24V |
| Power frequency withstand voltage: | 50kV |
| Lightning impulse withstand voltage: | 125kV |
| Rated current: | 630A |
| Short time current: | 20kA |
| Making current: | 50kAp |
| Electrical endurance (close-open cycle): | 400 |
| Mechanical endurance (close-open cycle): | 5,000 |
| Creeping distance: | 620mm |
| Weight: | 82kg |
| Ambient air temperature: | -40˚C ~ +60˚C |