Mitsubishi Electric Produces 30,000th Gas Circuit Breaker in Japan

  Mitsubishi Electric Produces 30,000th Gas Circuit Breaker in Japan

Business Wire

TOKYO -- March 18, 2013

Mitsubishi Electric Corporation (TOKYO:6503) announced today that it produced
its milestone 30,000th gas circuit breaker (GCB) in the 72kV and higher class
in Japan. GCBs protect electric facilities by cutting off irregular current in
the case of accidents, such as lightning strikes to power grids.

Mitsubishi Electric's global shipments of GCB units now exceed 47,000 units,
including those that have been manufactured by its U.S. affiliate Mitsubishi
Electric Power Products, Inc. since 1986. Going forward, Mitsubishi Electric
intends to contribute to electricity infrastructure worldwide through further
improvements in product performance, reliability and maintenance.

Mitsubishi Electric has produced switchgear for the last half-century. Since
its first 84/72kV GCB in 1965, the company has steadily enhanced performance
to meet growing high-voltage and large-current power infrastructure needs
around the world.

Milestones in Mitsubishi Electric's GCB Production

• 1965   Japan's first 84/72kV GCB
• 1973     World's first 550kV hydraulic operating, four-break GCB for
           gas-insulated switchgear
• 1991     GCB cumulative production reaches 20,000 units
• 1995     550kV hydraulic operating, one-break GCB
• 2010     Japan's first 550kV spring operating, two-break GCB
• 2013     GCB cumulative production reaches 30,000 units in Japan

About Mitsubishi Electric

With over 90 years of experience in providing reliable, high-quality products,
Mitsubishi Electric Corporation (TOKYO:6503) is a recognized world leader in
the manufacture, marketing and sales of electrical and electronic equipment
used in information processing and communications, space development and
satellite communications, consumer electronics, industrial technology, energy,
transportation and building equipment. Embracing the spirit of its corporate
statement, Changes for the Better, and its environmental statement, Eco
Changes, Mitsubishi Electric endeavors to be a global, leading green company,
enriching society with technology. The company recorded consolidated group
sales of 3,639.4 billion yen (US$ 44.4 billion*) in the fiscal year ended
March 31, 2012. For more information visit

*At an exchange rate of 82 yen to the US dollar, the rate given by the Tokyo
Foreign Exchange Market on March 31, 2012


Mitsubishi Electric Corporation
Customer Inquiries
Power Systems
Media Inquiries
Yurika Fujimoto, +81-3-3218-3380
Public Relations Division
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