Vacuum interrupter VI-145-63-A, hermetically sealed, maintenance-free switching component for high-voltage vacuum circuit-breakers and clean-air switchgear

• Listed as the vacuum-interrupter component family under Switching Products > Components in the Grid Technologies product hierarchy
• Arc extinction in a sealed vacuum bottle — no SF6, no toxic decomposition products, no gas handling, per the terminology canon for interrupter units
• Sealed for life and maintenance-free: the interrupter is hermetically sealed against anything that could cause decomposition (per published Blue GIS documentation)
• Technology heritage: 40+ years of vacuum-switching experience, high-voltage applications under development since 2012 (8VN1 Blue GIS flyer)
• The clean-air vacuum switching platform reaches the 145 kV / 63 kA class per published Blue documentation; ratings of this specific component are available on request
• Distinct from the operating mechanism that drives it — the interrupter unit is the current-breaking assembly within the pole (IEC 62271-100 context)