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Why SION 3AE2 vacuum circuit-breakers?

Generators are the critical heart of power generation within our electric systems. Being able to safely handle short-circuit currents in that area is absolutely crucial and one of the most demanding tasks in medium-voltage networks. The Siemens SION 3AE2 vacuum circuit-breaker is designed precisely for these exceptional demands: a solution that combines technical excellence with clear customer benefits - making it an indispensable part of your infrastructure.

  • up to 17.5 kV
  • up to 31.5 kA
  • up to 4000 A

As part of the globally established SION product platform, the 3AE2 stands for proven quality and forward-looking technology. Its type testing according to the stringent generator standard IEC/IEEE 62271-37-013 is a clear promise of performance, as the 3AE2 confidently handles the extreme switching duties that appear in generator-near networks.

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Key benefits

Ultimate protection

Masters generator loads and safeguards your assets.

Seamless integration

Compact design with fixed or withdrawable options brings easy integration into standard switchgear.

Certified excellence

Type-tested to generator standards for long-term reliability and efficiency.

Works with all SION accessories

Despite its superior performance, the SION 3AE2 is astonishingly compact and flexible. It is as slim as circuit-breakers for standard applications and due to its affiliation with the SION family, it can be effortlessly combined with our other SION products within the same compact switchgear types.

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Sustainable energy distribution with SION

Innovative vacuum technology makes SION circuit breakers robust, compact and sustainable. Siemens Product Manager Daniel Pröhl provides insights into SION circuit-breaker technology.

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