WIN SOURCE ELECTRONICS
Wenzhou DAQUAN Electric
Twittlebit.com
Thermik Gerätebau GmbH
TE Connectivity
Sweeta Products Corporation
Siemens AG
Shamrock Controls div. of Burns Controls Company
SEKI CONTROLS CO., LTD.
SCHURTER
Sang Mao Enterprise Co. Ltd
Rockwell Automation

33 Circuit Protector Manufacturers in 2024

This section provides an overview for circuit protectors as well as their applications and principles. Also, please take a look at the list of 33 circuit protector manufacturers and their company rankings. Here are the top-ranked circuit protector companies as of December, 2024: 1.WIN SOURCE ELECTRONICS, 2.Erickson Electrical Equipment Co., 3.E-T-A Elektrotechnische Apparate GmbH.

Table of Contents

List of 33 Circuit Protector Manufacturers

*Including some distributors, etc.

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  • Company Size: largest first
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  • United States of America
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  • Germany
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  • Republic of Korea
  • Slovenia
  • Switzerland
  • Taiwan
WIN SOURCE ELECTRONICS 's Circuit Protectors
- 2-pin, 5V bidirectional ESD protection diode from ON Semiconductor.
- Designed to protect voltage sensitive components from electrostatic discharge (ESD).
- Excellent clamping capability, low leakage, and fast response time.


    • WIN SOURCE ELECTRONICS
      China

      Company Overview

      Win Source Electronics is an AS9120B-certified business-to-business (B2B) distributor of electronic products, accessories and components that was established in Shenzhen, China, in 1999. The company stocks products from over 3,000 manufacturers, including C&K Components, Fujitsu Electronics America, and American Zettler, Inc. These products include power supplies and converters, memory modules, and RFID devices for wireless communication. The company primarily markets its products to clients in Asia's consumer electronics, energy, and industrial manufacturing sectors.

    • Excellent clamping capability (12.5V) Low leakage current (1uA) Fast response time (less than 1ns)

    • ABB Motors and Mechanical Inc
      • United States of America Address: 5711 R.S. Boreham Jr Street Fort Smith, Arkansas, United States of America

      Manufacturer Overview

      ABB Motors and Mechanical Inc., founded in 1920 and with headquarters in the USA, is a custom manufacturer and marketer of industrial electric motors, drives, and mechanical power transmission products. The company's products include AC/DC, gear, synchronous, variable speed servo motors, and permanent magnet motors produced in over 20 plants across North America, China, and Mexico for the HVAC, chemical, food and beverage, oil and gas, and wastewater industries, among others. ABB Motors and Mechanical Inc. also holds an ISO 9001:2015 certification.

    • Erickson Electrical Equipment Co.
      • United States of America Address: 475 Bonnie Lane Elk Grove Village, Illinois, United States of America

      Manufacturer Overview

      Erickson Electrical Equipment Co. is a manufacturer of utility metering products, founded in 1932, and headquartered in Elk Grove Village, Illinois. They offer type CM group metering (modular) in both 240V and 480V, current transformer section with the disconnect in both 240V and 480V and current transformer cabinets. They also offer ground detectors, termination boxes, and accessories. Their products are used for accurate metering of electrical services, serving several sectors, including commercial, industrial, and residential.

    • Addison Building Materials
      • United States of America Address: 3201 S. Busse Road, Arlington Heights, Illinois, United States of America

      Company Overview

      Addison Building Materials was founded in 1947in Arlington Heights, Illinois. Addison has over 38,000 items in stock across departments including lumber, building materials, hand tools, power tools, electrical, fastener, paper products, SOG Knives, janitorial, clothing, ice & snow, automotive, and audio-visual departments. In addition, Addison offers various services including custom orders, local delivery, rental program for contractor and industrial tools and equipment, lumber cutting, pipe threading, and paint color matching.

    • Pollak
      • United States of America Address: 37-18 Northern Blvd, Long Island City, New York, United States of America

      Company Overview

      Pollak Corporation was established in 1909 as a tool and die shop in Boston, Massachusetts. In 2019, Pollak Joined Standard Motor Products and expanded its product offerings. Today, Pollak provides custom design, test, and manufacturing for automotive, agricultural, construction, and marine-related industries. In the company’s ISO 9001/QS9000 certified facilities, the company advances customer requests from the concept stage through testing, initial production, and all the way to volume production. The company’s existing customers include Ford, General Motors, PACCAR, John Deere, and Caterpillar.

    • Federal Electronics Inc.
      • United States of America Address: 75 Stamp Farm Road, Cranston, Rhode Island, United States of America

      Distributor Overview

      Federal Radio and Television, now known as Federal Electronics, was founded in Providence, Rhode Island, in 1948. They were established by Romolo Evangelista and initially sold and maintained electric machinery and appliances. Federal Electronics is now an Electronic Manufacturing Services (EMS) supplier with offices in Rhode Island and Mexico. They engage in electronic contract manufacturing that is adaptable and configurable. Their services include but are not limited to, fiber optic interconnects, box builds, and systems integration.

    • Twittlebit.com
      • United States of America Address: 1024 EAST NEW CIRCLE ROAD, LEXINGTON, Kentucky, United States of America

      Distributor Overview

      Twittlebit.com is located in Lexington, Kentucky. Twittlebit is a distributor of industrial equipment and components divided into 8 sub-stores including: sensors, HMI & PLC, visual & audio , panel components, and pneumatic & vacuum. The company offers next day delivery to Kentucky and neighboring states, and 2-to-3-day delivery to most other states of in-stock products. The company offers in-stock selection of many top brands such as Autonics, EEControls, Panasonic, and Cembre. The company can also in-source many hard to find products directly from Japan from companies such as IDEC, Canon, Omron, and Fuji Electric in 7-to-10-days.

    • Marshall DC Lighting
      • United States of America Address: 329 W Lone Cactus Dr., Ste 1, Phoenix, Arizona, United States of America

      Distributor Overview

      Marshall DC Lighting (MDL) is an American supplier of LED lighting solutions established in 2017 and based in Phoenix, Arizona. The company stocks various direct current (DC) LED light products, including standard, remote and off-grid lighting, as well as fixtures and utility items like exit signs. They operate as a partner to Nextek Power Systems, which is a national pioneer of DC-powered systems and technologies. MDL serves the lighting needs of in-state public utility companies, as well as client companies like Cox Communications, DuPont, and Lowe's.

    • Dietz Electric Co., Inc.
      • United States of America Address: 4329 W Lincoln Ave, Milwaukee, Wisconsin, United States of America

      Distributor Overview

      Dietz Electric was founded in 1974 and is based in Milwaukee, Wisconsin. Dietz Electric is a broad-line stocking distributor offering electric motors, drives, and power transmission products. Dietz Electric also offers customization options to test, manufacture, modify, and repair all product offerings. Product offerings include electric motors, hazardous locations motors, custom electric motors, variable frequency drives, motor controls, power transmission solutions, and specialty items such as purge systems, Uras vibrators, disc brakes, transformers, and AC line reactors.

    • Shamrock Controls div. of Burns Controls Company
      • United States of America Address: 13735 Beta Rd. Dallas, Texas, United States of America

      Distributor Overview

      Shamrock Controls is a division of Burns Controls Company, an industrial distributor of hydraulic, pneumatic, and automation products. Burns Controls Company was established in 1971 in Dallas Texas. Shamrock Controls is a global distributor of IEC electrical motor controls and factor automation solutions. Shamrock Controls product listings include contractors, overload relays, DP contractors, relays, push buttons, pilot lights, control stations, motor starters, circuit breakers, disconnect switches, cam switches, power supplies, terminal blocks, cable glands, lock nuts, din rails, ducts, wire accessories, and various pneumatic components.

    • SEKI CONTROLS CO., LTD.
      • Republic of Korea Address: 134, MTV 1-ro, Danwon-gu, Ansan-si, Gyeonggi-do, Republic of Korea

      Manufacturer Overview

      Seki Controls Co., Ltd., established in 1980 and based in Gyeonggi-do, South Korea is a manufacturer of Bimetallic Thermal Protector, Motor Protector and Thermostat that export to all over the world. The company’s products regulate temperatures at any extremely high degrees while shielding domestic and industrial equipment from the harm that high temperatures can do internally and outside. Seki Controls has been certified with electric safety certificates and environmental regulations, and complies with ISO9001 and ISO14001.

    • Thermik Gerätebau GmbH
      • Germany Address: Salzstraße 11, Sondershausen, Germany

      Manufacturer Overview

      Thermik Corporation was founded in 1968 in Pforzheim, Germany opened its American subsidiary in 1984 in New Bern, North Carolina. The company is a manufacturer of thermal regulation products used in electronics and appliance manufacturing industries by companies worldwide. The company’s two primary product lines are thermal protectors and thermistors. Thermal protectors limit the maximum temperature reached in devices while thermistors, also referred to as motor protector sensors or PTCs, work by increasing resistance at certain temperatures. They are commonly used in fire detectors, ovens, refrigerators, and in the aviation industry.

    • Hollyland  Electronic Technology Co.
      • China Address: No. 829, Fangshan Second Road, Xiang'an District, Xiamen City, Fujian, China

      Manufacturer Overview

      Hollyland, established in Shenzhen, China, in 1992 is a manufacturer of circuit protection products that are used in communications, new energy resource, computers, transportation, and other electronic power system protection. The company's production plant is accredited with BSI ISO9001, ISO/TS16949 and CQC ISO14001 system certifications and their product range include miniature fuses, micro and SMD fuses, and PTC resettable fuses as well as other circuit protection devices and the company also provides customer support.

    • Wenzhou DAQUAN Electric
      • China Address: Xinguang industrial zone, liushi of Wenzhou, Zhejiang, China

      Manufacturer Overview

      Wenzhou DAQUAN Electric Co., Ltd was founded in 1996 in Wenzhou, China. The company is an electrical products manufacturer of relays, relay sockets, timers, meters, and related components to customers both in and outside of China and serves both home appliance customers as well as industrial customers in manufacturing and other industries. The company has 5 major product segments including relays, timers, meters, circuit breakers, and switches. The company also sells various tools, alarm devices, and product accessories.

    • Siemens AG
      • Germany Address: Siemens Aktiengesellschaft, Werner-von-Siemens-Straße 1, Munich, Freistaat Bayern, Germany

      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.

    • Mitsubishi Electric Corporation
      • Japan Address: Tokyo Building,2-7-3, Marunouchi, Chiyoda-ku, Tokyo, Japan

      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.

    • ETI Elektroelement d.o.o.
      • Slovenia Address: Obrezija 5, 1411, Izlake, Slovenia

      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.

    • Hosiden Corporation
      • Japan Address: 4-33, Kitakyuhoji 1-Chome, Yao-City, Osaka, Japan

      Manufacturer Overview

      Hoisden Corporation, founded in 1950, is a manufacturer and retailer of electronic components based in Kitakyuhoji, Japan. The products include transducers, electromechanical components, acoustic components, and wireless components. The transducers are speakers, receivers, microphones, and touch sensors, whereas the electro-mechanical components include HDMI connectors, USB connectors, miniature jacks, detector switches, and remote control units used in telecommunication, healthcare, home, and amusement industries. The company runs an OEM, ODM, and EMS contract and production service department, collaborating with the customer to plan, design and produce products according to their desired design or specifications.

    • Sweeta Products Corporation
      • Taiwan Address: 23552 1F, No.799 Chung Cheng Road, Chung Ho Dist, New Taipei City, Taiwan

      Manufacturer Overview

      SWEETA was established in 1995 and is headquartered in New Taipei City, Taiwan. SWEETA is a manufacturer of switches, AC sockets, and circuit breakers globally. Most products have been certified to meet international safety standards such as UL, CSA, VDE, and others. SWEETA has an extensive product line. A few listings include AC sockets, plug adapters, switches, thermostats, and test tweezers.

    • E-T-A Elektrotechnische Apparate GmbH
      • Germany Address: Industriestraße 2-8, Altdorf, Freistaat Bayern, Germany

      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.

    • Sang Mao Enterprise Co. Ltd
      • Taiwan Address: No. 27, Yongke 7th Rd., Yongkang Dist., Tainan City, Taiwan

      Manufacturer Overview

      Sang Mao Enterprise, since 1984, is a manufacturer of circuit overload protection components including temperature switches & control fuses, circuit breakers, and leak-proof temperature sensors based in Tainan City, Taiwan. Their circuit breakers are square, round, or toothless fixed heads or fixed frames with automatic return, manual reset, and shaking return types. The company also manufactures 1-inch and ¾ inch single and three-phase motor protectors. Sang Mao has passed ISO 9001:2015 certification and is UL, CCC, CSA, TUV, and VDE-approved. Their products are used in household appliances, automotive equipment, pumps & motors, and business machinery, including medical equipment, transformers, and industrial instruments.

    • SCHURTER
      • Switzerland Address: Werkhofstrasse 8 Lucerne, Lucerne, Switzerland

      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.

    • Carling Technologies Inc.

      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.

    • TE Connectivity

      Manufacturer Overview

      TE Connectivity Ltd., started in 2007 and headquartered in Schaffhausen, Switzerland, is a designer and manufacturer of sensor and connectivity solutions for harsh conditions. It operates three primary segments, namely transport, industrial, and communication solutions, and its product portfolio includes automotive connectors, fiber optic connectors, analog power meters, RTD sensors, and circuit breakers. It serves customers in approximately 140 countries and several industries, including aerospace, automotive, rail, IoT connectivity, and E-mobility. The company manufactures 192 billion products annually and has invested over 610 million USD in research development and engineering.

    • Crouzet

      Manufacturer Overview

      Crouzet was founded in 1921 and is headquartered in France. The company is an independent manufacturer of mechatronic components for applications in the aerospace, energy, building, and machinery industries. The company offers four primary product categories: Switches & Sensors, Aerospace, Motion, and Automation & Control. Aerospace includes cockpit controls, electrical protection, and various position sensors. These are designed to increase pilot comfort and improve flight safety. Motion includes motors, actuators, and external control electronics. Automation & Control includes both hardware and software solutions.

    • NOARK Electric North America

      Manufacturer Overview

      NOARK is based in Pomona, California, and is a global manufacturer of low-voltage electrical components for industrial applications. NOARK specializes in motor controls and protection for original equipment and manufacturers with products covered by five-year limited warranties. NOARK parts are used in numerous solutions such as HVAC and refrigeration, industrial food equipment, panel builders, digital storage, and engine generators. NOARK’s main product lines include low-voltage power circuit breakers, molded case circuit breakers, miniature circuit breakers, overload relays, and circuit control devices.

    • Fuji Electric Equipment Control

      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.

    • Rockwell Automation

      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.

    • American Electrical, Inc.

      Company Overview

      American Electrical was founded in 1997 and is based out of Richmond, Virginia. The company is a distributor of DIN rail-mounted components and electrical equipment to customers in the US as well as overseas. The company offers 3 product segments: Connection, Protection, and Wire Preparation. The connection segment includes terminal blocks, PCB terminal blocks, IR modules, and DIN rails. The Protection segment includes products such as circuit breakers and surge arrestors. Wire Preparation offerings include wiring ducts, wire ferrules, and tools.

    • Hybrid Electronics Corporation

      Distributor Overview

      Hybrid Electronics is a global distribution specialist of electronic components, with access to over 50 million unique components. Among the markets HE serves are the aerospace, automotive, communications, defense, industrial, medical, national security, and test & measurement industries. In addition to components, HE also provides quality and compliance testing, counterfeit detection, upscreening, and other forms of quality control. Examples of component subtypes that HE offers include ICs, batteries, capacitors, semiconductor products, sensors, circuit protection, interconnectors, filters, optoelectronics, relays, switches, power supplies, and cables and cable assemblies.

    • AutomationDirect Inc.

      Distributor Overview

      AutomationDirect.com was founded in 1994 to provide solutions for the industrial automation market and has been growing its list of offerings ever since. AutomationDirects’ extensive catalog includes individual components such as cables, various controls, I/O devices, relays, gauges, fittings, and sensors to complete systems. Many parts and devices, especially PLC units are customizable. AutomationDirect.com also provides support via video instructions, online manuals, a learning library, an active community forum to further assist customers.

Circuit Protector Manufacturer Ranking

*Including some distributors, etc.

Derivation Method

The ranking is calculated based on the click share within the circuit protector page as of December 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

  1. Siemens AG: 311,000
  2. Mitsubishi Electric Corporation: 145,696
  3. Hosiden Corporation: 590

Newly Established Company

  1. WIN SOURCE ELECTRONICS: 1999 (25 years ago)
  2. Wenzhou DAQUAN Electric: 1996 (28 years ago)
  3. Sweeta Products Corporation: 1995 (29 years ago)

Company with a History

  1. Pollak: 1909 (115 years ago)
  2. Mitsubishi Electric Corporation: 1921 (103 years ago)
  3. SCHURTER: 1933 (91 years ago)

Circuit Protector Manufacturers in United States

*Including some distributors, etc.

Global Distribution of Circuit Protector Manufacturers by Country

*Including some distributors, etc.

Country Number of Companies Share (%)
United States of America United States of America 9 39.1%
China China 3 13.0%
Germany Germany 3 13.0%
Japan Japan 3 13.0%
Taiwan Taiwan 2 8.7%
Republic of Korea Republic of Korea 1 4.3%
Slovenia Slovenia 1 4.3%
Switzerland Switzerland 1 4.3%

List of Circuit Protector Products

2 products are listed.

Hoshiden Co., Ltd.

Circuit protector TBC5000 / 6000

40+ people viewing

■ Use Vending machine, electric tools, etc.


2 models listed

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