76 Circuit Breaker Manufacturers in 2024
This section provides an overview for circuit breakers as well as their applications and principles. Also, please take a look at the list of 76 circuit breaker manufacturers and their company rankings. Here are the top-ranked circuit breaker companies as of November, 2024: 1.COAST BREAKER, 2.Bay Power Inc., 3.Qsonica, LLC.
Table of Contents
What Is a Circuit Breaker?
A circuit breaker is an electrical device capable of interrupting a circuit where an accidental current flows.
Circuit breakers for low voltage include wiring circuit breakers to detect overcurrents and ground leakage circuit breakers to detect leakage currents. Circuit breakers for high voltage are used in conjunction with protective relays because they are not equipped with accidental current detection functions.
Uses of Circuit Breakers
Wiring circuit breakers are also used as safety breakers in ordinary homes. Circuit Breaker is a device that interrupts a circuit in general, but the wiring circuit breaker installed in a home switchboard is called a safety circuit breaker.
The purpose of installing circuit breakers is to protect circuits and people from accidental currents, such as short circuits and ground faults. Since these can cause electric shock or fire, they are always installed in electrical products and switchboards.
Principle of Circuit Breaker
Wiring circuit breakers are generally of the thermodynamic electromagnetic type, utilizing the deformation of bimetal caused by overcurrents. When an overcurrent flows, the bimetal generates heat and deforms to release the latch, thereby breaking the circuit.
Thermodynamic electromagnetic wiring circuit breakers can be restored by manually returning the latch after the bimetal has cooled and returned to its original shape. RCD circuit breakers monitor the current in a circuit and interrupt it if there is a difference in traffic. If the circuit is properly insulated, the outgoing and incoming current values will be equal.
The difference between the outgoing and incoming currents is called leakage current, which is detected by the magnetic field of the zero-phase current transformer built into the RCD circuit breaker. Vacuum circuit breakers are mainly used for high-voltage circuits. Vacuumcircuit breakers are circuit breakers that turn off the arc by creating a vacuum at the opening and closing points of contact.
When a circuit with a current flowing through it is opened, a discharge phenomenon called an arc is generated. At high voltages, the arc discharge cannot be broken, and the contact point will burn up. Extinguishing the arc discharge is called quenching, and every high-voltage Circuit Breaker has a function that can quench high-voltage arc discharges.
Types of Circuit Breakers
Circuit breakers that protect against short-circuit currents of high-voltage or extra-high-voltage voltages have the function of quenching arcs, as mentioned above. Based on the arc quenching mechanism, the following types of circuit breakers are available.
1. Aerial Circuit Breaker (ACB)
Low-voltage circuit breakers are generally used because they can be arc-quenched in the air without any problem. General low-voltage circuit breakers, such as safety breakers, are applicable to air circuit breakers .
2. Gas Circuit Breaker (GCB)
A circuit breaker that quenches the arc by spraying an inert gas on the contacts when opening the circuit. Sulfur hexafluoride (SF6) gas is used as an inert gas, but because SF6 is a greenhouse gas, it is a circuit breaker that should be used with caution.
3. Oil Circuit Breaker (OCB)
A circuit breaker that quenches the arc using insulating oil. Since its dielectric strength is inferior to that of a vacuum, this type of circuit breaker is rarely used today. In the past, polychlorinated biphenyls (PCBs) were used as insulating oil, but the production of PCBs is now prohibited.
4. Vacuum Circuit Breaker (VCB)
A circuit breaker that extinguishes an arc by creating a vacuum at the open/close contact point. Vacuum circuit breakers are the most common type of compact high-voltage circuit breaker. They have few actuators and are easy to maintain.
Other Information on Circuit Breakers
Difference Between Circuit Breakers and Breakers
There is no difference between circuit breakers and breakers. Breaker is an abbreviation for circuit breaker.
List of 76 Circuit Breaker Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- China
- France
- Germany
- Italy
- Japan
- Slovenia
- Switzerland
- Taiwan
- Turkey
- United Kingdom
-
-
-
ifm efector, inc.
Electronic circuit breaker
Manufacturer Overview
ifm efector (ifm) is a subsidiary of ifm electronic, founded in Germany in 1969. ifm has developed, manufactured and marketed sensors and controls technology to industries that include assembly and robotics, automotive, material handling, metal forming, mobile equipment, plastics, and food and beverage. Ifm produces sensors, condition monitoring equipment, image processing, safety technology, industrial communication, IO-link, systems for mobile machines, displays, software, connection technology, voltage supplies, as well as other accessories.
-
-
-
-
-
Omega Engineering, Inc.
Circuit Breakers for Branch Circuit Protection
Manufacturer Overview
OMEGA Engineering Inc., founded in Norwalk, CT, in 1962 is a manufacturer of products used to measure temperature and humidity, flow and level, and pressure. The company's product portfolio includes thermocouple probes and assemblies, pressure gauges and switches, and air velocity measurement systems, wireless systems and portable optic sensors. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. The company also offers customer services that include support, custom research projects and customized services.
-
-
-
-
-
Qsonica, LLC
DC CIRCUIT BREAKER MANUFACTURER
Manufacturer Overview
Qsonica, LLC is a Newtown, Connecticut-based manufacturer and developer of ultrasonic liquid processors founded in 2009 as a division of Misonix, Inc. The company primarily produces various Sonicator models such as the Q55, Q125, Q500, and Q800R. These are devices designed to create cavitation in liquids using ultrasound for industrial processes like dispersion, sonochemistry, and extraction. Qsonica also offers a range of flow cells, reactors and other accessories for their Sonicator line, which is used by client companies like Genentech, Pfizer, and IBM.
-
-
-
-
-
Tower Optical Corporation
Breakers
Manufacturer Overview
Tower Optical Corporation is a provider and manufacturer of Precision optics, optical components and systems. The company is based in Florida, United States and was founded in 1978. The company products include Crystal Quartz Waveplates, Achromatic Waveplates (retarders), lenses, filters, and optical flats. The company stock and "build to spec" custom products are used in photonics technology, electro-optics, lasers, telecommunications, medical instruments, optical imaging and optical computing, and military systems. The company serves industries like aerospace, defense, medical, telecommunications, and more.
-
-
-
-
-
Qualtek Electronics Corporation
THERMAL CIRCUIT BREAKERS
Manufacturer Overview
Qualtek Electronics Corporation, established in 1980, is a manufacturer of fans & fan accessories, power supplies, cable assemblies, primary power components, and heat shrink products. The fan accessories include farm guards, aluminum or plastic fan filters, and fan power cords for the primary power components, including inlets, multi-function assemblies, outlets, and powerline filters used in electronics industries. The company in Mentor, OH, is ISO 9001 and provides thermal circuit breakers, NEMA & IEC wiring devices, and sleeving processes, including automotive sleeving, coated and uncoated sleeving, and expandable sleeving.
-
-
-
-
-
Dry Coolers, Inc.
Sensing Modules
Manufacturer Overview
Dry Coolers, Inc., established in 1985 is a manufacturer of industrial cooling solutions headquartered in Oxford, Michigan, USA. The company, which has on-site engineering and fabrication departments offers various cooling technologies and custom solutions such as evaporative cooling towers, mechanical chillers, pump stations, air-cooled heat exchangers, and accessories such as plate heat exchangers, bag filters, controls, sensors, and centrifugal separators. It has passed the ASME, CSA, CE, and UL standards and is ISO 9001:2015 certified to offer products to various industries including aerospace, canning, energy, data centers, and metal treatment.
-
-
-
-
-
Littelfuse, Inc
Circuit Breakers
Manufacturer Overview
Littlefuse was founded in 1927 and headquartered in the United States. Littlefuse is a diversified industrial technology manufacturing company with customers globally. Littlefuse has products segments which are electronic, industrial, and transportation. Electronic segment products include fuses and fuse accessories, positive temperature coefficient resettable fuses, polymer electrostatic discharge suppressors, and varistors. Transportation products include blade, resettable, and high-current and high-voltage fuses, as well as battery cable protectors; fuses, switches, relays, circuit breakers, and power distribution modules. The Industrial segment offerings include contactors, transformers, and temperature sensors for use in renewable energy and energy storage systems, electric vehicle infrastructure, HVAC systems.
-
-
-
-
-
Sensata Technologies, Inc.
Circuit Breakers
Manufacturer Overview
Sensata Technologies was originally founded in 1916 as General Plate Company and is now headquartered in Attleboro, Massachusetts. The company is a developer, manufacturer, and seller of sensors and sensor-rich solutions, electrical protection components, and other products used in automotive, industrial, energy, telecom, and construction industries. The company has 20 product categories including force sensors, tire management solutions, inverters & charges, and pressure sensors.The company’s next generation of products are designed to improve the efficiency of industrial pumps, fuel efficiency in ICE cars and energy efficiency in TVs, and facilitate usage of IoT devices.
-
-
-
-
-
IBOCO
Circuit Breaker
Manufacturer Overview
IBOCO, a wholly owned subsidiary of Hager Group, is a manufacturer and supplier of a wire management system that handles most panel wiring challenges based in New Jersey. The company offers a wide range of products including the I-Flex Flexible Liquid-Tight PVC Tubing that provides protection for electrical wiring and helps to reduce problems caused by vibration, flexing, and movement as well as the I-Flex Liquid-Tight Connectors that facilitate leak-free connections between tubing and motors, processing equipment, and pumps.
-
-
-
-
Manufacturer Overview
BLOCK, over its 80-year history, has evolved into a global manufacturer of transformers, power supplies, reactors, and EMI filters. Its aim of controlled, rapid, and precise in-house production ensures the highest quality standards. A pivotal development center, featuring over 80 engineers and technicians, manages an extensive standard product portfolio while facilitating customization and product development. This allows the company to certify and deliver custom-made products within three weeks from its Verden production sites, ensuring quality across all stages of the development and manufacturing process.
-
-
-
-
-
Littelfuse
Circuit Breakers
Manufacturer Overview
Littelfuse founded in 1927, is an industrial manufacturing company empowering a sustainable, connected, and safer world, headquartered in Chicago, Illinois, United States. The company's product portfolio includes the solutions for both individual and entire systems, as a global manufacturer of technologies in circuit protection, power control, and sensing. Across more than 20 countries, and with approximately 18,000 global associates, partner with customers to design and deliver advanced solutions. Serving over 100,000 end customers, their products are found in industrial, transportation, and electronics end markets.
-
-
-
-
-
Automation Systems Interconnect
Circuit and Surge Protection
Manufacturer Overview
Automation Systems Interconnect (ASI), founded in 1999, is a manufacturer and supplier of electrical and electronic components, universal printing systems, and custom-assembled products based in Mechanicsburg, Pennsylvania. The company’s product portfolio includes cables, cords and connectors, CAM and disconnect switches, and more. Their wide range of industrial components cater to various applications such as automation and control, power distribution and generation, and printed board assembly. The company’s suppliers and partners hold ISO, UL and ATEX certifications to ensure their industrial electrical and electronic components meet industry standards.
-
-
-
-
-
c3controls
MINIATURE CIRCUIT BREAKERS
Manufacturer Overview
c3controls, founded in 1976 and based in Pennsylvania, is a leading manufacturer and supplier of electrical control products. Specializing in a wide array of offerings, c3controls delivers an extensive selection of push buttons, pilot lights, circuit breakers, motor starters, and control relays, encompassing crucial components for electrical control systems. Their product portfolio also encompasses switches, sensors, terminal blocks, and power supplies, catering to diverse applications within industrial environments such as machine control, motor control, power distribution, panel building, and industrial automation systems. Notably, c3controls holds certifications from the International Organization for Standardization (ISO) and Underwriters Laboratories (UL).
-
-
-
-
-
Bay Power Inc.
Circuit Breakers
Manufacturer Overview
Bay Power Inc., is a supplier of electrical products and solutions since 1992, and a manufacturer providing the ability to build custom parts to meet the stringent standards for industrial control panels as a UL 508A-certified panel shop. Their range of products includes circuit breakers, transformers, motor controls, and electrical panels. Their product lineup includes molded case circuit breakers (MCCBs) and miniature circuit breakers (MCBs) for residential and commercial use, and air circuit breakers (ACBs) for larger industrial installations. They also provide specialized circuit breakers such as ground fault circuit interrupters (GFCIs), arc fault circuit interrupters (AFCIs), and more.
-
-
-
-
-
COAST BREAKER
CIRCUIT BREAKER
Distributor Overview
COAST BREAKER, founded in 1987 and located in Sparks, Nevada, is a supplier of circuit breakers and motor control products. The company offers a diverse range of products, including square D switches, starters, enclosures, and control buckets. These products are utilized in diverse applications across residential, commercial, and industrial settings. The company’s breakers and motor control products are used for the safety, efficiency, and effective operation of electrical systems, motor control, and industrial automation processes.
-
-
-
-
-
Automation4less
Miniature Circuit Breakers / UL Listed Manual Motor Controllers
Distributor Overview
Automation4less, founded in 1998 and located in Salisbury, North Carolina, is a supplier of basic electrical, pneumatic, and automation components. The company’s range of products includes Linear Bearings, Stack Lights, Signal Lights, Linear Motion Guides, and Fuse Holders. These products find use in industrial automation and machinery applications. The company’s electrical, pneumatic, and automation components are used for precise linear motion, visual status communication, motion guidance, and electrical safety in industrial processes.
-
-
-
-
-
E-T-A Elektrotechnische Apparate GmbH
HIGH PERFORMANCE CIRCUIT BREAKERS
Manufacturer Overview
E-T-A, founded in Bayern, Germany, in 1948 is a manufacturer of overcurrent protection, power distribution, relays and intelligent systems. The company's product portfolio includes thermal-magnetic devices as well as magnetic and hydraulic-magnetic circuit breakers, battery isolation switches, power entry modules, and solid state relays and intelligent systems. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. They have 4 production sites and operate in more than 60 countries.
-
-
-
-
-
IMO Precision Controls
UB10D3060A
Manufacturer Overview
IMO Precision Controls, a company founded in 1972 and headquartered in Hertfordshire, United Kingdom, is a manufacturer and supplier of industrial automation and control products. The company offers a wide range of products and solutions, including automation products, circuit protection, control and switch gears, and solar products. Their products find application in diverse industries such as manufacturing, energy, and transportation. The company also offers customer services that include technical support, value-added assembly, training courses, and tailored solutions to meet clients’ requirements.
-
-
-
-
-
SCHURTER
Thermal-magnetic circuit breakers
Manufacturer Overview
The SCHURTER Company was founded in 1933 and operates out of Lucerne, Switzerland. SCHURTER is an innovator and producer of electronic components for many markets including industrial equipment, medical equipment, automotive, avionics and space, data and communication, and energy. SCHURTER products and solutions include: circuit protection, connectors, switches, EMC, custom components, HMI solutions, PCAP touchscreens, resistive touchscreens, capacitive switches, membrane switches, and a series of smart products including Smart Connector DS11 PEM, Smart Connector DT31 external, and Smart Ecosystem.
-
-
-
-
-
Federal Electric
Circuit Breaker
Manufacturer Overview
Federal Electric, established in 1990 and based in Adapazar, is a manufacturer of marble, natural gas metres, lighting, and low-voltage equipment. The company was founded with all national capital on 40,000 square metres of land, of which 25,000 square metres are covered. The company was the 70th organisation in Turkey to be awarded an ISO 9000 quality certificate, and it was also honoured with a quality award in Belgium. The company offers 3250 items, including current transformers, automated transfer switches, small circuit breaker boxes, surge protection devices, and moulded-case circuit breakers.
-
-
-
-
-
BARTEC Top Holding GmbH
EFSC218 breakers and switches
Manufacturer Overview
BARTEC Top Holding GmbH, founded in 1975, is a manufacturer headquartered in Bad Mergentheim, Germany, developing explosion-proof technology. The company offers explosion-proof access points and sensors for smart factories and the Industrial Internet of Things (IIoT). It also develops wireless connectivity solutions for potentially explosive atmospheres. The company further provides mobile devices for communication and collaboration in hazardous areas. Other offerings include trace heating solutions to protect production processes, supply lines, and transportation methods in various industries, such as thermal engineering.
-
-
-
-
-
Sigma Elektrik
Circuit Breakers
Manufacturer Overview
Sigma Elektrik, established in 1993 and headquartered in Istanbul, Italy, is a manufacturer and supplier of electrical systems equipment and devices. The company's products include molded-case circuit breakers, miniature circuit breakers, and low-voltage current transformers. These products are used for the management and safety protection of users of residential, industrial, and commercial electrical systems. Although it supplies its products to wholesale buyers, it works primarily with original equipment and private label manufacturers.
-
-
-
-
-
Yueqing Hean Electrical Co., Ltd.
Miniature Circuit Breaker
Manufacturer Overview
Yueqing Hean Electrical Co. Ltd. is a manufacturer of low- and high-voltage electrical equipment and appliances that was established in Zhejiang, China, in 2006. The company’s product lineup includes din-rail modular kilowatt-hour meters for measuring energy consumption, surge protectors for insulating electrical equipment from spikes or surges, and circuit breakers for protecting electrical circuits from shorts or overloads. The company’s products are used mainly by clients in China’s construction, infrastructure, and electrical industries.
-
-
-
-
-
Meba Electric Co.,Ltd
Miniature Circuit Breaker
Manufacturer Overview
Meba Electric Co.,Ltd is a Chinese manufacturer of low-voltage electrical equipment that was established in Yueqing City, Zhejiang Province in 2006. The company produces various relays such as electronic and thermal overload relays, circuit breakers, AC contactors, and AC drivers. It also offers human machine interfaces (HMIs) such as MT4000/6000/8000 series touch panels, as well as programmable logic controller (PLC) and expansion modules. The company’s products are used mainly by clients in the construction, aerospace, energy, and petrochemical industries.
-
-
-
-
-
GEWISS
Circuit breakers
Manufacturer Overview
GEWISS S.p.A., founded in 1970 and currently a subsidiary of Unifind S.p.A., is an Italian manufacturer headquartered in Bergamo, Lombardy, providing solutions for building automation, energy protection and distribution systems, as well as smart lighting and e-mobility. The company manufactures over 20,000 products, including industrial socket outlets with interlocks, plug and socket outlets, and wall- and flush-mounting enclosures. It also undertakes electrical installations for urban landscapes and provides lighting and/or electrical solutions for machinery in logistical areas. The company also engages in building automation for main functions, such as air conditioning, lighting, and motorized systems, primarily for retail applications.
-
-
-
-
-
Sieyuan Electric Co., Ltd.
Live Tank SF6 Circuit breakers LW36
Manufacturer Overview
Sieyuan Electric Co., Ltd., founded in 1993 and headquartered in Shanghai, China, is a manufacturer of electrical equipment. The company specializes in electric power technology, equipment manufacturing, and engineering services. It provides mainstream power system operators as well as industrial and power-generating companies from more than 60 countries with products, solutions, and EPC projects. Its product portfolio includes high-voltage switch gears, power transformers, and automation systems. The company provides various case studies of its projects of railway, coal, power grid, as well as EPC cases.
-
-
-
-
-
LOVATO Electric S.p.A.
Motor protection circuit breakers
Manufacturer Overview
LOVATO Electric S.p.A., founded in 1922 and based in Bergamo, Italy, is a manufacturer and designer of low-voltage electrical devices for industrial applications. The company offers a wide range of products such as Motor Protection circuit breakers, Contractors, electromechanical starters and relays, variable speed drives, and soft starters among others. The company holds UNI ISO 45001: 2018, ISO 1400: 2015, and ISO 50001: 2018 certificates. The company’s laboratories are certified to conduct type testing under ACAE control to issue ACAE certifications which are recognized by the European Union and valid across the wold.
-
-
-
-
-
ITALWEBER S.p.A.
MOTOR CIRCUIT BREAKERS
Manufacturer Overview
Italweber S.p.A., founded in 1960, is an Italian manufacturer based in Assago, Milan, providing electrical fuses and components. The company's product portfolio includes over 5,000 fuses and fuse holders tailored for low and medium-voltage applications, including those for photovoltaic (PV) systems. It also develops specialized fuses and fuse holders for various sectors such as automotive, railway, and telecommunications. The company further offers motor-protective circuit breakers, modular boxes for switchboards and industrial plants, as well as copper bars and related accessories.
-
-
-
-
-
Shihlin Electric&Engineering Corp
Molded Case Circuit Breaker
Manufacturer Overview
Shihlin Electric and Engineering Corp, founded in 1955 and headquartered in Taipei, Taiwan, is a manufacturer of heavy electrical systems, electrical equipment, machinery, and automation. The company offers a diverse product catalog, including miniature circuit breakers, magnetic contactor switches, molded case circuit breakers, oil-immersed distribution transformers, and Shihlin SDC-A servo - economic pulse type. These products have applications in domestic electrical distribution, factory automation, laboratory power supply, aeronautics and defense, and renewable energy.
-
-
-
-
-
ETI Elektroelement d.o.o.
Circuit breakers
Manufacturer Overview
ETI is a manufacturer of electrical protection and control products based in Slovenia, Central Europe where it was established in 1950. The company deals in circuit breakers and switches along with enclosures, distribution boards, and equipment ETIBOX. The company is also known for manufacturing transformers, contractors, fuses, and control devices. These products are installed as integral solutions for the protection of electrical equipment and components in residential and commercial buildings, in the field of electric power and industry electrical installations.
-
-
-
-
-
Blue Jay Technology Co. Ltd.
Miniature Circuit Breaker
Manufacturer Overview
Blue Jay Technology Co. Ltd., established in 2013 and headquartered in Chongqing City, China, is a manufacturer of power automation monitoring products and energy meters. The company's product includes DIN rail energy meters and insulation monitoring devices for electric vehicles. It also offers OEM/ODM services such as replacement of UI design (type OEM-I), changes on existing products (type OEM-II), and new designs available on demand (ODM). Its product can display power usage in real-time, helping users understand their power quality and usage, and optimize power usage. It serves industries such as power automation monitoring, mechanical contracting, transportation, and manufacturing.
-
-
-
-
-
Mitsubishi Electric Corporation
Air Circuit Breakers
Manufacturer Overview
Mitsubishi Electric was established in Japan in 1921 and headquartered in Tokyo. The company’s Semiconductors & Devices division is a manufacturer of products serving several industries ranging from home appliances and automotive to renewable energy and optical fiber communication. The company’s products are divided into 4 product segments: power devices, high-frequency devices, optical devices, and infrared sensors. Power devices encompass motion controls, most home appliances, and SiC applications. High-frequency devices include satellite communications systems, radios, and base transceiver stations. Optical devices include projector light sources and optical fiber communication. Infrared sensing systems include MeIDIR thermal sensors.
-
-
-
-
-
Siemens AG
3WA air circuit breakers
Manufacturer Overview
Siemens began in 1847 and is headquartered in Munich, Germany. Siemens focuses in automation and digitalization technology and operates globally. Siemens’s 5 operating segments are digital industries, smart infrastructure, mobility, Siemens Healthineers, and Siemens Financial Services. Siemens Financial Services provides debt and equity investment as well as financing solutions. Siemens Healthineers is a medical devices company that provides products and consulting. Mobility includes passenger and freight transportation. Smart infrastructure includes full solutions for electrification. Digital industries offer both software and hardware for industries and production efficiency.
-
-
-
-
-
TERASAKI ELECTRIC CO.,LTD.
Circuit breakers
Manufacturer Overview
Terasaki Electric Co., Ltd., established in 1923, and headquartered in Osaka, Japan, is a manufacturer and a supplier of motor control systems, circuit breakers, and electronic devices. The company offers a diverse range of products such as marine systems like power distribution systems, control and monitoring systems, and more. It also provides circuit breakers including molded case and air circuit breakers, as well as medical devices and engineering & lifecycle services. The company adheres to ISO13485 certification for medical devices and complies with other industry standards such as JIS and IEC for its products.
-
-
-
-
Manufacturer Overview
Geya is an electrical equipment manufacturer established in China in 2007. It produces electrical control devices, low voltage protection devices, solar energy equipment, and circuit breaker SKDs in compliance with CE, UL, and other international certification standards. The company's ISO 9001-certified factory has a production capacity of over 100,000 parts per month, it offers OEM and ODM services for the development of custom solutions, and it exports to over 30 countries.
-
-
-
-
-
Hitachi, Ltd.
Switches & Breakers
Manufacturer Overview
Hitachi, Ltd was established in 2002 and headquartered in Chiyoda-ku, Tokyo is a manufacturer of industrial electrical equipment and system solutions. The company offers an extensive and diversified product portfolio including industrial drive systems, power electronics, energy-related equipment, power distribution systems, and various other industrial solutions. These products serve as integral components that drive advancements in industrial capabilities across diverse sectors by playing a pivotal role in promoting energy conservation and storage, automating robot systems in large factories, enabling smarter manufacturing through digital solutions, and facilitating efficient transportation within industrial facilities.
-
-
-
-
-
Schneider Electric SE
Circuit Breakers
Manufacturer Overview
Schneider Electric S.E. is headquartered in Rueil-Malmaison, France, and has been operating since 1836. Schneider Electric provides a number of products and services including electrical car charging, energy management software, surge protection devices, load banks, servers and HMIs, valve and valve actuators, feeder automation, grid automation, and SCADA software products, data center cooling and software, home automation and security, light switches, motion control and robotics, signaling units, solar and energy storage, RFID systems, as well as other hardware, services, and software.
-
-
-
-
-
SOCOMEC
LOAD BREAK SWITCHING
Manufacturer Overview
Socomec is based in Gurgaon, Haryana, India, and is a manufacturer of power safety and control products that was established in 2007 as a subsidiary of the Socomec Group. The company’s product lineup includes uninterruptible power supply (UPS) systems for protecting important electronic installations, power meters for monitoring applications, and automatic as well as manual transfer switches for managing or protecting the supply of power. The company is ISO 14001 and ISO 45001-certified, and mainly serves clients in the commercial and industrial sectors.
-
-
-
-
-
Colibrys
Thermal Circuit Breaker
Manufacturer Overview
Colibrys, a joint company established in 2001 and headquartered in Yverdon-les-Bains, Switzerland, is a manufacturer, designer and supplier of micro-electro-mechanical systems sensors and electronic machines. The company offers a wide range of products including mechanical power transmissions, power generation systems, and seismic sensors. These products are used in industries such as aerospace, defense, energy, and transportation. Their products are utilized for various applications including measuring acceleration, inclination, and seismic activity, enabling data collection for various critical applications. The company also offers services such as aerial refueling and air delivery systems.
-
-
-
-
-
Advanced Optics, Inc.
Circuit Breakers
Manufacturer Overview
Advanced Optics, Inc., established in 1966 and based in Pewaukee, Wisconsin, is a manufacturer of optical mirrors, optical flats, and windows. Some of its products include precision optical mirrors, commercial-grade optical windows, custom optical flats, dichroic optical filters, and optical lenses. The products are useful in several industries, including astronomy, aerospace, commercial avionics, security/defense, and life sciences. The company manufactures all its products in the United States and can custom-make them and assist with prototyping for large and small projects. No product leaves the company unless it has 100% passed the quality assurance process.
-
-
-
-
-
OptiFuse
Circuit Breakers
Manufacturer Overview
OptiFuse is an ISO 9001:2015-certified manufacturer of over-voltage and overcurrent protection products established in El Cajon, California, USA, in 2000. The company’s products include various fuses for circuits and devices such as electronic glass and surface mount fuses, as well as fuses for vehicular applications such as bolt-on and automotive blade fuses. It also offers telecom fuses, UL standard fuses, and resettable fuses for heavy duty applications. The company chiefly serves client manufacturers of heavy machinery, recreational vehicles, and consumer electronics.
-
-
-
-
-
Interpower Corporation
Circuit Breaker
Manufacturer Overview
Interpower Corporation established in 1975, and has headquarters located in the USA, and the UK, is a manufacturer of international power cords and related products to customers worldwide. The company’s North American stock of products centralized in Iowa include international power cords and cord sets, plugs and sockets, hospital-grade products, and IEC 60320 accessory power distribution units. The UK division of the company serves mainly the European market. Interpower Corporation is also ISO 9001:2015 certified.
-
-
-
-
-
Emerson Electric Co
Circuit Breakers and Enclosures
Manufacturer Overview
Appleton is a manufacturer of industrial-grade electrical products for hazardous environments that was established in Illinois, USA, in 1903 before becoming a subsidiary of Emerson Electric Co. in 1982. The company’s products include corrosion resistant, explosion proof, and dust ignition proof plugs and receptacles. It also offers lighting products such as LED luminaires and floodlights, motor starters, and junction boxes in metallic as well as non-metallic varieties for protecting electrical devices. The company chiefly serves clients in the oil and gas, industrial processing, and power generation sectors.
-
-
-
-
-
R. STAHL AG
MOTOR PROTECTION CIRCUIT BREAKERS
Manufacturer Overview
R. STAHL AG, established in 1876 and based in Waldenburg, Germany, is a manufacturer and supplier of electrical components, equipment, and systems used in hazardous areas. Some of its products include luminaires, control boxes, CCTV systems, distribution boards, and signaling devices. The products have several applications, including explosion protection for LNG and machine building. The company has subsidiaries in 21 countries and has applied an integrated management system for all its production sites, which brings together three ISO standards for quality management (9001), safety and health (45001), and environmental protection (14001).
-
-
-
-
-
Carling Technologies Inc.
Equipment Leakage Circuit Interrupters
Manufacturer Overview
Carling Technologies, founded in 1920 in Connecticut, USA, is a circuit breaker and switch manufacturer. The company specializes in the design, development, and manufacturing of advanced switches and control products. Their comprehensive product line comprises of toggle switches, rocker switches, push-button switches, rotary switches, and circuit breakers. These products are crucial for managing electrical systems, keeping operations secure, and regulating power distribution. They are used in various industries, such as automotive, marine, aerospace, industrial, and telecommunications. The company also offers customized, advanced solutions for marine technology, including power regulations for vessels of any size and circuit protection.
-
-
-
-
-
Langir Electric
DC Circuit Breaker
Manufacturer Overview
Langir Electric, founded in 2009 and based in Wenzhou, China, is a manufacturer of switch solutions, including piezo, anti-vandal, and capacitive switches. The company also sells electronic design solutions, control panels, and accessories like flexible light pipes, stainless steel cable ties, and anti-vandal pilot indicators. It also provides custom services and solutions and has over 10,000 customers. The company sells 80% of its products to over 50 countries in regions such as Canada, Europe, and South America. It is ISO 9001certified, and all its products have a one-year major parts warranty.
-
-
-
-
-
BENEDICT GmbH
Circuit Breaker
Manufacturer Overview
Benedict GmbH, established in 1920 and headquartered in Vienna, Austria, is a manufacturer of low-voltage switchgear and related products. The company is a supplier in the power factor correction industry. Its products include general and short-form catalogs, encompassing contactors, motor starters, and variable resistors. Its Austrian operations produce essential electrical components such as thermal overload relays, load disconnectors, and auxiliary contact blocks. The company also provides 3D models for micro contactors, auxiliary contact blocks for mini contactors, and DC isolators for photovoltaics.
-
-
-
-
-
Werner Electric Pvt Ltd.
Minature Circuit Breaker
Manufacturer Overview
Werner Electric Pvt Ltd., founded in India in 2011, is a manufacturer of switches, relays, mosaic mimics, and panels. The company's product portfolio includes terminal blocks, relay interface modules, CNC interface modules, mosaic panels and accessories, and operator workstations and consoles. The company has offices in Turkey and Malaysia and serves markets such as medical and healthcare, robotics and automation, industrial machinery, energy and renewable energy, and aerospace and defense.
-
-
-
-
-
Hillesheim GmbH
Fuse protection circuit breaker
Manufacturer Overview
Hillesheim GmbH, a company founded in 1979 and headquartered in Waghäusel, Germany, is a manufacturer of heating hoses and tracer heating systems. Specializing in precision engineering, the company produces flexible tracer heaters, temperature controllers, and surface heating element parts utilized in various sectors, including automotive, aerospace, and manufacturing. The company is ISO 9001 certified, ensuring quality control and adherence to industrial quality standards in its production processes. It also adds fire prevention features to its products to ensure fire safety.
-
-
-
-
-
Tianshui 213 Electrical Apparatus Group Co., Ltd.
Mininature Circuit Breaker
Manufacturer Overview
Tianshui 213 Electrical Apparatus Group Co. Ltd., established in 1969 and headquartered in Tianshu, China, is a manufacturer and supplier of electrical appliances and components. The company's products include reverse contact controllers, switch capacitor controllers, and Watt-hour meters. These products are used in the manufacture of various electronic devices, such as personal electronics and home appliances, as well as electrical systems. It has three research and development and manufacturing bases in China, including Xiamen, Tianshu, and Shanghai, and exports to over 36 countries.
-
-
-
-
-
People Electric Appliance Group Co., Ltd.
Air circuit breaker
Manufacturer Overview
People Electric Appliance Group Co., Ltd., headquartered in Yueqing, Zhejiang, China, is a manufacturer of electrical equipment. Its diverse product range includes circuit breakers, contactors, disconnectors, switchgear, and control panels. These products find applications in power generation and transmission, industrial automation, and commercial and residential construction industries. The company's equipment is designed to safeguard and regulate electrical circuits, ensuring safe and efficient operations. The company also holds certifications such as ISO 14001 Environmental Management System, ISO 45001 Occupational Health & Safety Management System, and ISO 9001 Quality Management.
-
-
-
-
-
ABBEY ELECTRONIC CONTROLS LTD
RESETABLE THERMAL CIRCUIT BREAKER
Manufacturer Overview
ABBEY ELECTRONIC CONTROLS LTD, founded in 1990 and located in Wigan, United Kingdom, is a manufacturer providing electronic control solutions. The company manufactures a wide range of electronic and gas products, including snow and rain sensors, ignition controllers, and air pressure switches. It also offers related accessories, such as conversion kits, edge connectors, and controller knobs. The company serves original equipment manufacturers (OEMs) across diverse industries, providing electronic solutions to meet their specific needs.
-
-
-
-
-
Britec Electric Wenzhou Co., Ltd.
Surge Protection
Manufacturer Overview
Britec Electric Wenzhou Co., Ltd., established in 2003 and headquartered in Wenzhou, Zhejiang, China, is a designer and manufacturer of power surge protective devices. The company's products include surge arresters for TNS, PV surge protection devices, and LED lightning protectors. These products are used in data centers, lightning and surge protection for cellular base stations, and lightning protection for wind power farms. It serves sectors that include mass transit railways, solar power generation plants, and lightning protection for low-voltage power distribution systems in commercial buildings.
-
-
-
-
-
WEG Electric Corp.
Air Circuit Breakers
Manufacturer Overview
WEG, founded on 16 September 1961, is the world’s largest manufacturer of commercial and industrial electric motors, gearboxes, automation technologies, power generation equipment, and related equipment. Such products are used in the manufacturing of pumps, compressors, fans, and more. The company started with the motive of manufacturing electric motors, but soon it expanded its services to the manufacturing of electric and electronic components, industrial automation technologies, power and distribution transforms, etc. The company has been awarded various ISO certifications. Different companies, including PAUMAR, GEREMIA and 16 more, are affiliated with the WEG group.
-
-
-
-
Manufacturer Overview
WEG S.A. is an ISO 9001-certified manufacturer of industrial engineering products founded in 1961 and based in Jaraguá do Sul, Brazil. The company produces equipment and products for power generation, control, and coating metal or wood. These include powder coatings for decorative or protective purposes, gas turbines, and dry-type transformers. The company primarily serves clients in the oil and gas, wastewater processing, and mining industries. It also offers maintenance, engineering, and automation services to its customers.
-
-
-
-
Sécheron
DC circuit breakers
Company Overview
Sécheron, with its establishment in 1989, operates as a manufacturer and supplier in the field of railway and transportation electrification. The company has its headquarters located in Geneva, Switzerland and it specializes in providing cutting-edge products and services that cater to the railway industry's needs, including circuit breakers, switchgear, and traction converters. It serves the railway and transportation industries, where its solutions are used in ensuring the efficient electrification of rail systems, helping to enhance the overall performance and safety of these critical modes of transportation.
-
-
-
-
-
PHOENIX CONTACT
Electronic circuit breakers
Company Overview
Phoenix Contact is headquartered in Blomberg, Germany, originally founded in 1923. Phoenix Contact’s Israeli subsidiary was founded in 2006 and located in Quadima Tzoran. Phoenix Contact provides tools and components for e-mobility, power, infrastructure, process industry, production manufacturing, system manufacturing, and others. Phoenix Contact’s product lines include automate including cloud computing, connect including PCB terminal blocks, “mark, assemble, and install” including hand tools, “supply, charge, and protect” including power distributors, and “switch, measure, and monitor” including relays and optocouplers.
-
-
-
-
-
anxele Co., Ltd.
Air Circuit Breaker
Company Overview
Anxele Co., Ltd., established in 2003 and headquartered in Zhejiang, China, is a manufacturer and distributor of a wide variety of electrical products. The company offers a range of electrical products, including photovoltaic new energy systems, electrical protections, and distribution boxes. It also provides industrial plugs, sockets, and terminal blocks. Its products are designed for high and low-voltage power transmission and distribution, as well as solar energy systems. The company has also won TUV, CE, CB, S-Memko, UKCA, ISO9000, and CQC certifications. It serves industries such as manufacturing, solar energy, industrial control, and power transmission.
-
-
-
-
-
Rockwell Automation
Thermal-magnetic Circuit Breakers
Company Overview
Rockwell Automation, Inc. was founded in 1903 and is headquartered in Milwakee, WI. Rockwell Automation provides industrial automation and digital transformation solutions around the world. Rockwell Automation operates through their intelligent devices, software & control, and lifecycle services segments with both hardware and software products and services. The Intelligent Devices segment offers drives, motion, safety, sensing, industrial components, and configured-to-order products. The Software & Control segment provides control and visualization software and hardware, information software, and network and security infrastructure solutions. The Lifecycle Services segment provides consulting, professional services and solutions, and connected and maintenance services through independent distributors.
-
-
-
-
Company Overview
ABB is a manufacturer and supplier of robotics and process automation products that was established in Zurich, Switzerland, in 1988 following the merger of BBC of Switzerland and ASEA of Sweden. The company specializes in products for electrification and motion control applications. These products include sensors, motors, and drives for in-facility delivery rovers. It also offers transformers, circuit breakers, and inverters for maintaining operational efficiency in automated lines. The company chiefly serves clients in the mining, oil and gas, and food and beverage industries.
-
-
-
-
Fuji Electric Equipment Control
Molded case circuit breaker
Company Overview
Fuji Electric Equipment Control was established in 2008 in Saitama-ken, Japan is a manufacturer of power distribution and control equipment. The company boasts an extensive and diversified product portfolio including motor controls, MV distributors, energy control equipment, LV distributors, and industrial control relays. These products find applications in construction as magnetic contactors, automotive as manual motor starters, home appliances as air circuit breakers, health care devices as sensors and switches, and in environmental management for quality assurance and protection of high-voltage electric power and management of low-voltage consumption rate.
-
-
-
-
-
DAICEL CORPORATION
Pyro-Fuse
Company Overview
Daicel Corporation, established in 1919 with its headquarters in Osaka, Japan, is a manufacturer and distributor of specialty chemicals and related products. The company specializes in organic chemicals, plastics, and pyrotechnic devices. Notable offerings include Cellulose Acetate, widely used in filters and photographic film production, as well as Engineering Plastics, encompassing liquid crystal polymers (LPCs) and resin compounds. The company also produces automotive airbag inflators, crucial safety components for vehicles.
-
-
-
-
-
Aggreko
Circuit Breakers
Company Overview
Aggreko, founded in 1962, is a global provider of temporary power, energy, and temperature control solutions. The company has over 60 years of experience and 6,000+ employees worldwide, It provides flexible, eco-friendly power options to industries like businesses, governments, utilities, pharmaceuticals, construction, shipping, mining, and petrochemical, among others. With a vast global presence of 60 locations, Aggreko is ISO 45001, ISO 9001, ISO 9001 (Canada), ISO 14001, and OHSAS 18001 certified. Their product line includes solutions like power generation, gas generators, diesel generators, industrial air conditioners, temperature control, cooling towers, rental power, and more.
-
-
-
-
-
-
YaoHua Electric Apparatus Group
CIRCUIT BREAKING
Company Overview
YaoHua Electric Apparatus Group, established in 1986 and based in Zhejiang, China, is a manufacturer and supplier of machinery and electric equipment. The company's product portfolio includes AC contactor series, voltage regulators, and portable power distribution boards. These products are applied in various industries, including telecommunications, energy and power generation, and mining and resource extraction. The company exports its products globally to various countries, including the United States, Brazil, and South Africa, while also being ISO 9001 certified.
-
-
-
-
-
Richardson RFPD
Circuit Breaker Device
Company Overview
Richardson RFPD, based in Geneva, Illinois, is an electronic component distributor that became a subsidiary of Arrow Electronics in 2011. The company stocks products such as antennas, power supplies, and ICs, and its engineering team brings together over 600 years of combined design experience in IoT product development, wireless, and RF, making it competent from conception to production. The company is ISO 9001 certified and has three international distribution hubs in Asia, Europe, and North America. It sells products from several brands, including Advanced Thermal Solutions, Empower RF Systems Inc., and Carlisle Interconnect Technologies.
-
-
-
-
-
Waytek, Inc.
Circuit Breakers
Company Overview
Waytek Inc., founded in 1970 and headquartered in Chanhassen, Minnesota, is a distributor of automotive wire and DC electrical components across North America. The company offers a broad line of products, including circuit breakers, cable ties, and connectors, serving wire harness manufacturers, OEMs, and upfitters. It sources the products from manufacturers such as GEP Power Products, Lovato Electric Inc., and East Penn Manufacturing. In 1980, the company stopped producing wire harnesses and started concentrating on distribution. In 2021, CIT Relay and Switch awarded it the Blast-Off Growth Award for being among the growing distributors of Picker Components products.
-
-
-
-
-
Altech Corporation
Circuit Protection Devices
Company Overview
Altech Corporation, founded in 1984 and headquartered in Flemington, New Jersey, is a supplier and distributor of electronic and control components and is ISO 9001 certified. The company provides a broad line of products, including programmable controllers, monitoring relays, and terminal blocks, used in instrumentation, industrial control, and automation applications. The company’s enclosed disconnect switches are available in different materials like stainless steel, plastic, and aluminum and have a use rating of 16A to 150A/600V AC. The products are all RoHS and REACH compliant and meet diverse national and international standards like IEC, CSA, and UL.
-
-
-
-
-
Alstom
switchgear components
-
-
-
-
-
ELMARK Store
MINIATURE CIRCUIT BREAKER
-
-
-
-
-
ENTEC Electric & Electronic
High-Speed Circuit BreakerHSCB
-
-
-
-
-
Zhejiang VeKON Technology Co., Ltd.
VB10-63 MCB
-
-
-
-
-
Advanced Safety Solutions
EFD3 series explosion-proof breaker
Distributor Overview
Advanced Safety Solutions was founded in 2010 and is a supplier of ATEX and industrial safety equipment for harsh environments based in Aix en Provence, Provence Alpes Cote d'Azur, France. The company offers various products such as high gain sounders warning siren, ATEX industrial telephones, ex-proof visual signalling warning signals, process heaters, and explosion proof floodlights. The products have been used in various applications such as oil refineries, offshore platforms, coal mines, pharmaceutical industries, and explosives storage facilities.
-
-
-
-
-
Hitachi Energy Ltd.
Generator circuit-breakers
Distributor Overview
Hitachi Energy Ltd., established in 2018, based in Zurich, Switzerland, is a global technology supplier that is advancing a sustainable energy future. The company manufactures and supplies a comprehensive range of capacitors and filter solutions that improves the power quality of electrical networks. They serve customers in the utility, industry and infrastructure sectors with solutions and services across the chain. The company has a proven track record and unparalleled installed base in more than 140 countries. They employ around 38,000 people in 90 countries.
-
-
-
-
-
Grid Solutions
Live tank circuit breaker
Distributor Overview
Grid Solutions, established in 1892, is a global producer and distributor of GE Renewable Energy solutions headquartered in Boulogne-Billancourt, France. The company is a part of GE Vernova with over 12,000 employees offering equipment, systems, and services to power utilities and industries, ensuring efficient power delivery from generation to consumers. These include Power Electronics, High Voltage Equipment, Automation & Protection, Software Solutions, and Projects & Services. Addressing the challenges of the energy transition, Grid Solutions provides safe integration of renewable and distributed energy into the grid using HV/MV equipment, gas-insulated substations, and more.
-
-
-
-
-
Ace Hardware
Circuit Breakers
Distributor Overview
Ace Hardware, established in 1924 under the name Ace Stores, is an American hardware distributor with its headquarters located in Oak Brook, Illinois. The company offers a diverse selection of hardware and home improvement products, including building materials, electrical items, power tools, plumbing and garden equipment, and housewares. Ace Hardware operates as a retailer-owned cooperative which allows each store to customize its inventory and services to suit the specific needs of its local community. Ace Hardware received the J.D. Power award for "Highest in Customer Satisfaction with Home Improvement Retail Stores" for the 15th time in 16 years as of 2022.
-
-
Circuit Breaker Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | COAST BREAKER |
5.3%
|
| 2 | Bay Power Inc. |
4.7%
|
| 3 | Qsonica, LLC |
4.1%
|
| 4 | ifm efector, inc. |
4.1%
|
| 5 | c3controls |
3.9%
|
| 6 | Automation Systems Interconnect |
2.9%
|
| 7 | Omega Engineering, Inc. |
2.9%
|
| 8 | Littelfuse, Inc |
2.7%
|
| 9 | Automation4less |
2.5%
|
| 10 | IBOCO |
2.3%
|
Derivation Method
The ranking is calculated based on the click share within the circuit breaker page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- Siemens AG: 311,000
- Mitsubishi Electric Corporation: 145,696
- Hitachi, Ltd.: 29,485
Newly Established Company
- Blue Jay Technology Co. Ltd.: 2013 (11 years ago)
- Meba Electric Co.,Ltd: 2006 (18 years ago)
- anxele Co., Ltd.: 2003 (21 years ago)
Company with a History
- Hitachi, Ltd.: 1910 (114 years ago)
- Mitsubishi Electric Corporation: 1921 (103 years ago)
- Mitsubishi Electric Corporation: 1921 (103 years ago)
Circuit Breaker Manufacturers in United States
*Including some distributors, etc.
- ifm efector, inc.
- Omega Engineering, Inc.
- Qsonica, LLC
- Tower Optical Corporation
- Qualtek Electronics Corporation
- Dry Coolers, Inc.
- Littelfuse, Inc
- Sensata Technologies, Inc.
- IBOCO
- BLOCK
- Littelfuse
- Automation Systems Interconnect
- c3controls
- Bay Power Inc.
- COAST BREAKER
- Automation4less
Global Distribution of Circuit Breaker Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
United States of America
|
16 | 37.2% |
China
|
6 | 14.0% |
Germany
|
4 | 9.3% |
Japan
|
4 | 9.3% |
Switzerland
|
3 | 7.0% |
Italy
|
3 | 7.0% |
Turkey
|
2 | 4.7% |
France
|
2 | 4.7% |
United Kingdom
|
1 | 2.3% |
Taiwan
|
1 | 2.3% |
Slovenia
|
1 | 2.3% |
