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Molded Case Circuit Breakers

Molded case circuit breakers (MCCBs) used in aerospace electrical systems incorporate thermomagnetic trip mechanisms within glass-reinforced polyester or thermoset moulded housings, providing overcurrent and short-circuit protection across defined current ratings. These devices integrate calibrated bimetallic thermal elements alongside electromagnetic instantaneous-trip assemblies, and must comply with qualification standards such as MIL-PRF-39019 for airborne distribution and load-centre applications.

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Molded Case Circuit Breakers suppliers linked to most aircraft programs in our database.

Global design and manufacturer of components and systems to the aerospace & defense industry for over 90 years.
AMETEK PDS
Quintus Technologies is a global leading provider of high pressure fluid cell presses and hydroform deep-draw presses for sheet metal forming
Quintus Technologies
USA Borescopes is a global provider of quality borescopes and videoscopes.
USA Borescopes
A global solutions leader in aerospace peelable coatings technology.
AC Products, Inc.
Highly accurate torque sensors and transducers for the Aerospace & Defense industry since 1960.
S. Himmelstein and Co.
Reduce the time spent on current projects by using ESDU – engineering data and software that has been approved and endorsed by professional institutions.
Accuris: ESDU Aircraft Design
Innovative sealing solutions that facilitate energy transfer, maintain fluid integrity, & exclude contaminants, ensuring components endurance.
CDI Products
CWST, leaders in surface treatment. Protecting and life extension of your critical components throughout any crisis!
Curtiss-Wright Surface Technologies
Elaire Corporation is a global supplier for airtool collets and various drill holding collets. All parts are made in the USA.
Elaire Corporation
Toray Advanced Composites provides advanced composite tooling materials including a comprehensive series of epoxy tooling prepregs.
Toray Advanced Composites
Global design and manufacturer of components and systems to the aerospace & defense industry for over 90 years.
AMETEK PDS
Quintus Technologies is a global leading provider of high pressure fluid cell presses and hydroform deep-draw presses for sheet metal forming
Quintus Technologies
USA Borescopes is a global provider of quality borescopes and videoscopes.
USA Borescopes
A global solutions leader in aerospace peelable coatings technology.
AC Products, Inc.
Highly accurate torque sensors and transducers for the Aerospace & Defense industry since 1960.
S. Himmelstein and Co.
Reduce the time spent on current projects by using ESDU – engineering data and software that has been approved and endorsed by professional institutions.
Accuris: ESDU Aircraft Design
Innovative sealing solutions that facilitate energy transfer, maintain fluid integrity, & exclude contaminants, ensuring components endurance.
CDI Products
CWST, leaders in surface treatment. Protecting and life extension of your critical components throughout any crisis!
Curtiss-Wright Surface Technologies
Elaire Corporation is a global supplier for airtool collets and various drill holding collets. All parts are made in the USA.
Elaire Corporation
Toray Advanced Composites provides advanced composite tooling materials including a comprehensive series of epoxy tooling prepregs.
Toray Advanced Composites
Global design and manufacturer of components and systems to the aerospace & defense industry for over 90 years.
AMETEK PDS
Quintus Technologies is a global leading provider of high pressure fluid cell presses and hydroform deep-draw presses for sheet metal forming
Quintus Technologies
USA Borescopes is a global provider of quality borescopes and videoscopes.
USA Borescopes
A global solutions leader in aerospace peelable coatings technology.
AC Products, Inc.
Highly accurate torque sensors and transducers for the Aerospace & Defense industry since 1960.
S. Himmelstein and Co.
Reduce the time spent on current projects by using ESDU – engineering data and software that has been approved and endorsed by professional institutions.
Accuris: ESDU Aircraft Design
Innovative sealing solutions that facilitate energy transfer, maintain fluid integrity, & exclude contaminants, ensuring components endurance.
CDI Products
CWST, leaders in surface treatment. Protecting and life extension of your critical components throughout any crisis!
Curtiss-Wright Surface Technologies
Elaire Corporation is a global supplier for airtool collets and various drill holding collets. All parts are made in the USA.
Elaire Corporation
Toray Advanced Composites provides advanced composite tooling materials including a comprehensive series of epoxy tooling prepregs.
Toray Advanced Composites

Supply chain relationships

Sectors serving Circuit Protection companies:
Passive Electronic Components  •  Active Electronic Components  •  Plastics  •  Metals  •  Non-metal Materials

Circuit Protection

Sectors purchasing from Circuit Protection companies:
Electrical Power Systems  •  Airframer  •  Turbine Engines  •  Electric Propulsion  •  Flight & Data Management  •  Fluid Power  •  Active Electronic Components  •  Airframe Assemblies  •  Piston & Rotary Engines  •  Auxiliary Power  •  Engine Rotating & Gas-Path Parts

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