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Sustainability for electrification and automation

Discover how Siemens can help you make a positive environmental impact through concrete measures to reduce Scope 1, 2 or 3 greenhouse gas emissions. Drive your sustainability goals with Siemens solutions for electrification and automation. Discover sustainability stories and unlock solutions today.

Technology for a better tomorrow

Siemens is committed to reducing CO₂ emissions through sustainable electrification solutions. The SION vacuum circuit breaker combines advanced vacuum technology with energy-efficient manufacturing and lightweight design to provide a more sustainable product.

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Lowered energy losses with pure copper

SION vacuum circuit breakers feature pure copper pole terminals — upgraded from previous copper alloys — to reduce electrical resistance, lower power losses and cut CO₂ emissions over the product’s lifecycle.

Built with energy-efficient manufacturing

SION breakers are produced using a forging process with pure copper instead of gravity-cast copper alloys, reducing energy use and emissions during manufacturing for a more sustainable product.

Reduced transport impact with lighter design

SION breakers feature a lighter housing and optimised secondary equipment, lowering weight and emissions during logistics while maintaining high reliability and performance.

Discover the SION breaker family

Discover how the improved SION circuit breaker helps you to reduce your carbon footprint and Scope 3 emissions, save energy and contribute to a sustainable future.

SION vacuum circuit breakers

With a compact design and high modularity, SION vacuum circuit breakers are a sustainable medium-voltage solution. They support general distribution to generator switching with flexible connections and maintenance-free operation.

Siemens SION vacuum circuit breaker 3AE.

Scaling sustainability impact

We combine the real and the digital worlds to empower our customers to become more competitive, resilient and sustainable. Discover Siemens’ global sustainability approach and how our commitment to greener technologies shapes products, processes and partnerships.

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Case study

Lamel, Poland

To support Poland’s energy transition, Siemens worked with a leading medium-voltage manufacturer to install SION vacuum circuit breakers in substations, enabling reliable delivery of climate-neutral electricity to the grid.

Lamel substation, installed with SION vacuum circuit-breakers from Siemens, at the edge of a solar field in Gdańsk, Poland.

Want your SION in less than 60 seconds?

Try our intuitive configuration tool, building your perfect product in just a few clicks.

Screenshot of Siemens SION vacuum circuit breaker configurator.

Get your journey started