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Why SION 3AE8 vacuum circuit-breakers?

SION 3AE8 vacuum circuit-breakers bring Siemens’ 40 years of expertise in vacuum switching technology to your critical power installations. Designed for up to 40.5 kV, the 3AE8 combines compact dimensions and configurable pole-center distances to fit diverse switchgear layouts while delivering industry-leading performance. The fully embedded epoxy resin pole architecture increases insulation strength for a safer, all-insulation operation in demanding environments. SION 3AE8 vacuum circuit-breakers meet both GB1984 and IEC 62271-100 standards and comply with circuit-breaker classes C2, E2, M2 and S1. With that, the SION 3AE8 is your clear choice when you need a compact, high-performance, low-maintenance breaker that protects assets, reduces operating costs and gives you confidence in continuous power delivery.

  • 12, 24 and 40.5 kV
  • up to 50 kA
  • up to 5000 A
  • up to 30,000 operations

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Maximum protection

High insulating strength and robust vacuum interrupters protect equipment and reduce fault risk.

Compact fit

Configurable pole-spacing and compact design simplify integration into diverse switchgear layouts.

Lower downtime

Up to 30,000 switching operations (with maintenance every 10,000) reduces unplanned outages and operational interruptions.

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