Why Are Vacuum Circuit Breakers Important?

A circuit breaker is an essential component of all electrical machinery. There are many types of circuit breakers, but the vacuum circuit breaker is the most recent and efficient. Vacuum circuits were first introduced in the 1960s and have improved over time. These circuits have been improved over the years to be more efficient, sleeker, and more reliable than ever before. They are also much cheaper! What exactly are vacuum circuit breakers? What are their advantages? Which are their top manufacturers? Continue reading to learn more.

What is the Secret to Their Success?

The vacuum circuit breaker's primary function is to use a vacuum as an arc quenching medium. The vacuum circuit breaker has the highest level of insulation, making them much more capable of quenching arcs than other breakers. When a vacuum is applied to a breaker's contacts, the current zero voltage causes the interruption to begin. From there, the dielectric force between the breakers increases at a rate that is thousands of times faster than other circuit breakers.

The Key Advantages

Vacuum circuit breakers offer several key benefits, including

No Maintenance

Vacuum circuit breakers are more reliable than other types of circuit breakers and require less maintenance. They are ideal for large-scale operations, but also for general convenience.

Life expectancy

The service life of a vacuum circuit breaker is much longer than other circuit breakers. This reduces the need to replace and reinvest.

There is no oil nor gas

Vacuum breakers are more efficient than other circuit breakers in that they don't need to be refilled with oil or gas as often as other circuit breakers. This reduces costs and helps to improve health standards.


Vacuum circuit breakers offer safety advantages over the rest. There is no danger of explosions or fire hazards, making them the best choice for safety-conscious operators.

It is important to remember that vacuum circuit breakers only work at low to moderate voltages. Multiple circuit breaker connections are required for voltages above 38 kV. This makes them expensive and inefficient.


Vacuum circuit breakers have many key advantages over conventional, oil-based varieties like gas and oil. They are the best choice for medium-range voltages and should be considered. Becker/SMC is the best recommendation if you're looking to purchase equipment for your company or viewing options. Becker/SMC has been a leader in producing safety-enhancing equipment and has always been ahead of its peers. It is the name of most electrical mining equipment in the world. It is a top-of-the-line choice due to its trusted reliability and compliance with numerous safety standards.

This post was written by Justin Tidd, Director at Becker/SMC. For nearly a half a century, Becker Mining has been at the forefront of safety, producing the best Electrical Supply House in the industry. Becker/SMC is the industry’s leader in increasingly more sophisticated electrical control systems. Most of the major innovations, design features, and specialized electrical components have been developed by Becker/SMC.


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    27 Aug 2019
    Tomas Mandy

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      27 Aug 2019
      Britney Millner

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