With 15 kV rating, replacement encapsulated poles enable Group CBS' companies to retrofit and upgrade legacy GE Power/Vac® circuit breakers to increase resistance to contaminates, moisture, and other harmful environmental conditions. These hardened, maintenance-free replacement assemblies, tested to applicable ANSI/IEEE standards, feature vacuum interrupter encased within epoxy and can extend life of original equipment by 20 years when combined with proper technical maintenance.