SION vacuum circuit breakers

SION vacuum circuit breakers

Flexible use in industry and infrastructure

SION vacuum circuit breakers control all standard switching tasks in medium-voltage distribution systems and are suited for installation in all air-insulated medium-voltage switchgear. These compact vacuum circuit breakers are easy to install, and they stand out for their long service life.

Find the right vacuum circuit breakers for your needs

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Consistent portfolio – for voltage levels up to 24 kV

The extensive SION vacuum circuit breaker portfolio includes a wide variety of pole-center distances and vertical distance between terminals in the 7.2 - to 24-kV range, as well as a number of specifications from standard circuit breakers for fixed mounting to complete plug-in modules. Identical compact dimensions and connection dimensions across several voltage levels reduce planning costs and the number of switchgear panel versions. All SION vacuum circuit breakers are highly reliable, and available. They are maintenance-free for up to 10,000 operating cycles.

SION vacuum circuit breakers – your benefits

  • Easy to install in air-insulated medium-voltage switchgears
  • High reliability
  • Compact design
  • Remote switching via remote control unit
  • Low planning costs
  • Maintenance-free design
  • Long service life

Fast, reliable, and efficient

SION 3AE5 vacuum circuit breakers are suited for all standard switching applications in medium-voltage power distribution and industrial networks: from switching load and short-circuit currents to connecting network or busbar sections. Retrofitting into existing switchgears is also easy, thanks to the wide variety of distances between pole centers and vertical distance between terminals, as well as an extensive range of mounting accessories. Their compact structure, with minimal depth and width dimensions, helps reduce the variety of panels needed. The wide range of panel versions also makes planning easier. The SION 3AE5 vacuum circuit breakers are available with an optional grounding switch for fixed mounting and plug-in versions.

Space-saving and flexible

The SION Lateral 3AE6 vacuum circuit breakers are specifically designed for low apparent power ratings in secondary medium-voltage power distribution. They reliably switch arcing faults and can be flexibly used in ring main units and transformer stations, and for retrofitting in transformer substations, wind turbines, and photovoltaic plants. The circuit breakers are available for different pole distances and for left-mounted or right-mounted drives. They are much more compact and lightweight than any comparable product. Therefore it saves space and is much easier to transport and install. Panel builders can choose from a variety of connection options to the high voltage contacts for an optimal busbar.

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Ordering vacuum circuit breakers

The right solution for all standard medium-voltage switching tasks

Learn, configure, then order: Detailed technical information on the SION vacuum circuit breakers is available in the Industry Mall. You’re just a few clicks away from the right device for your air-insulated medium-voltage switchgear.