Cooper Bussmann
About Cooper Bussmann

Cooper Bussmann is a wholly owned division of Cooper Industries, Inc (NYSE: CBE) and is headquartered in St. Louis, Missouri. With a more than 90-year history of innovation, the company has set the standard for circuit protection in the global market. 

Cooper Bussmann manufactures a wide variety of North American and European-styled fuses for the electrical, electronics and transportation industries, plus inductors and transformers for power quality in electronic applications. Cooper Bussmann also offers engineering, training and testing services focused on downtime reduction, workplace safety and Code compliance.

Markets Served
Cooper Bussmann serves four basic markets:
  • Electrical
    • Industrial MRO
    • OEM
    • Construction/Contractor
  • Electronics
  • Transportation
  • Consumer/Aftermarket


The company manufactures more than 50,000 SKUs (Stock Keeping Units) to provide customers with greater selection:

  • Low Voltage, Branch Circuit Rated Fuses
  • Low Voltage Supplementary Fuses
  • Electronic - Printed Circuit Board and Small Dimension Fuses
  • Medium Voltage Fuses
  • High Speed Fuses
  • IEC & British Standard Fuses
  • Fuse Holders and Blocks
  • Power Distribution Blocks
  • Wire Connection Products
  • Disconnects
  • Telecom Protection Devices
  • Surge Suppression Devices
  • Magnetics
  • Overvoltage Products
  • Supercapacitors
  • Accessories
Cooper Bussmann® Services

Cooper Bussmann® engineering, training and testing services were introduced in 2005.


You'll find Cooper Bussmann® fuses throughout industry, but also in the:

  • Gateway Arch, St. Louis
  • Sears Tower & John Hancock Building, Chicago
  • World's largest hydroelectric plant located between Brazil and Paraguay
  • New York Transit Authority subway trains
  • Walt Disney World monorail trains
  • NASA space shuttle and Mars lander
  • AOL/Time Warner Building, New York City
Cooper Bussmann VEC

The Cooper Bussmann® Vehicle Electrical Center (VEC) power distribution module uses a patented programmable3D matrix technology.

Manufacturing Facilities

Globally, Cooper Bussmann operates 12 manufacturing facilities. They include:


  • Dongguan, China
  • Hong Kong, China
  • Shanghai, China
  • Pondicherry, India
  • Seoul, South Korea

  • Burton-on-the-Wolds, England, UK
  • Copenhagen, Denmark

    North America
  • Dublin, California, USA
  • El Paso, Texas, USA
  • Goldsboro, North Carolina, USA
  • St. Louis, Missouri, USA

    South America
  • Ito, Brazil
Cooper Bussmann° Coiltronics®

Juarez, Mexico Facility

  • 1914 — Bussmann founded by brothers Al, Frank, Joe, Harry and Lee Bussmann in St. Louis, Missouri.
  • 1929 — Bussmann acquired by Max McGraw, (later McGraw Edison). The Bussmann family remains active.
  • 1979 — The Company moves its headquarters and manufacturing to its current location in Ellisville, Missouri, a St. Louis suburb.
  • 1985 — McGraw Edison acquired by Cooper Industries, Inc.
  • 1993 — Cooper Bussmann opens the Paul Gubany Center for High Power Technology.
Founders:  Bussmann Brothers

Founders:  Al, Frank, Joe, Harry and Lee Bussmann.

Cooper Bussmann Patent History

In its more than 90-year history, Cooper Bussmann has received more than 3000 utility and design patents, with more than 150 patents currently active.

  • 1923 — Harry is awarded the first two patents for cartridge and electric fuses.
  • 1924 — Frank receives a portable electric lamp patent.
  • 1929 — Fusetron® fuse technology patented.
  • 1963 — Bussmann receives a patent for its Class J time-delay fuse design.
  • 1967 — The patented Low-Peak® fuse product line is introduced.
  • 1992 — The patented LPCC midget time-delay fuse is introduced.
  • 1993 — Cooper Bussmann introduces and receives a patent for surface-mount chip fuses used on printed circuit boards.
  • 2000 — The finger-safe CUBEFuse® device receives five patents.
Cooper Bussmann® CUBEFuse®

The Cooper Bussmann® IP20 finger-safe CUBEFuse® is now available up to 100A.