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Siemens offers new compact vacuum circuit breakers

The picture shows the new compact vacuum circuit breakers.

The switches are used in secondary medium-voltage power distribution, for example in ring main units, transformer stations, industrial plants as well as in wind turbines and photovoltaic plants. Thanks to the low volume and special design of the devices, switchgear rooms can have narrower dimensions, making them smaller and more cost-efficient. A wide range of connection options to the high voltage contacts gives plant manufacturers optimum busbar mounting options. The circuit breakers are available for different pole distances as well as for left-mounted or right-mounted drives. The single-phase, encapsulated breakers can conduct rated currents of up to 1250 amperes (A) and manage a rated short-circuit breaking current of up to 25 kA. They require no maintenance up to 10,000 electrical switching cycles under normal ambient conditions between -5°C and 55°C.

For further information on Division Energy Management, please see
For further information on vacuum circuit breakers, please see
Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 165 years. The company is active in more than 200 countries, focusing on the areas of electrification, automation and digitalization. One of the world's largest producers of energy-efficient, resource-saving technologies, Siemens is a leading supplier of efficient power generation and power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. The company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2016, which ended on September 30, 2016, Siemens generated revenue of €79.6 billion and net income of €5.6 billion. At the end of September 2016, the company had around 351,000 employees worldwide. Further information is available on the Internet at
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Heiko Jahr

Siemens AG

Freyeslebenstr. 1
91058 Erlangen

+49 (9131) 7-29575