Vacuum switch

single-polemaintenance-freesealed

Siemens vacuum interrupters combine 50+ years of vacuum switching expertise and SF6-free design with unmatched reliability and lowest total cost of ownership. Vacuum interrupters are the engineered heart of all Siemens medium‑voltage switchgear. Having pioneered vacuum switching technology in the early 1970s, we design our vacuum interrupters to deliver the best vacuum switching available on the market. Typical operating performance reaches up to 30.000 cycles in circuit-breakers and up to three million cycles in contactors — maintenance‑free across the whole lifecycle. For utilities, OEMs and industrial operators who demand uptime, safety and long-term economy, Siemens vacuum interrupters deliver proven German engineering, environmental responsibility, and market‑leading quality — a clear choice when performance and reliability matter most. Key benefits Engineered reliability Hermetically sealed contacts ensure consistent switching performance throughout the entire lifecycle. Designed with F-gas-free insulation technology Innovative vacuum technology for an F-gas-free ecological energy transition. Expert partnership Highly qualified R&D team to support with the integration into your gear.