We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Circuit breaker.
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Circuit breaker Product List and Ranking from 31 Manufacturers, Suppliers and Companies

Last Updated: Aggregation Period:Sep 17, 2025~Oct 14, 2025
This ranking is based on the number of page views on our site.

Circuit breaker Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Sep 17, 2025~Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. 日幸電機 日幸電機サテライト ★ アキバ( 東京都/秋葉原/神田/岩本町) Tokyo//Industrial Electrical Equipment
  2. 藤川伝導機 Tokyo//Industrial Machinery
  3. 日本高圧電気 Aichi//Energy
  4. 4 ABBジャパン Tokyo//Industrial Electrical Equipment
  5. 5 日本スピードショア Osaka//Service Industry

Circuit breaker Product ranking

Last Updated: Aggregation Period:Sep 17, 2025~Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. High Voltage Vacuum Circuit Breaker "VF-8D/13D Series" 藤川伝導機
  2. Nichiyu Electric Manufacturing Co., Ltd. New FM Circuit Breaker Leakage Current Protector Catalog 日幸電機 日幸電機サテライト ★ アキバ( 東京都/秋葉原/神田/岩本町)
  3. Nihon Kōdenki Seisakusho Circuit Protector Equipment Protection Circuit Breaker Comprehensive Catalog 日幸電機 日幸電機サテライト ★ アキバ( 東京都/秋葉原/神田/岩本町)
  4. 4 CF circuit breaker (cylindrical type) 日本高圧電気
  5. 5 ■New Product■ Ultra-Fast Semiconductor Circuit Breaker 'SACE Infinitus' ABBジャパン

Circuit breaker Product List

16~30 item / All 55 items

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Nichiyu Electric Manufacturing Co., Ltd. New FM Circuit Breaker Leakage Current Protector Catalog

Standardization and miniaturization of wiring circuit breakers and residual current devices! We are pursuing ease of use!

This catalog features the circuit breakers and residual current devices 'New-FM' with ratings from 30 to 225AF (2-pole and 3-pole types). Our product employs a fully electromagnetic mechanism for the overcurrent release device, which does not use thermal elements such as bimetals, offering superior principles. It has many features. We introduce features, operating principles, characteristics, and more, so please use this information for product selection. [Contents] ■1. Overview ■2. Characteristics ■3. Installation and Connection ■4. Accessories ■5. Specifications by Type, Outer Dimensions ■6. Appendix *For more details, please refer to the PDF document or feel free to contact us.

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Nichiyu Electric Manufacturing Co., Ltd. Complete Electromagnetic Type FM Leakage Circuit Breaker Product Catalog

Also featuring auxiliary devices and related products! Introducing the leakage circuit breakers handled by our company!

This catalog introduces the "Leakage Circuit Breakers" handled by Nikkou Electric. It includes a list of ratings, auxiliary devices, related products, specifications by type, characteristics, and dimensional drawings. Please feel free to download and take a look. 【Contents (partial)】 ■ List of ratings ■ Auxiliary devices ■ Introduction of products related to leakage circuit breakers ■ Specifications by type, characteristics, dimensional drawings ■ Series for welding machines *For more details, please refer to the PDF document or feel free to contact us.

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Nihon Kōdenki Seisakusho Circuit Protector Equipment Protection Circuit Breaker Comprehensive Catalog

For the protection of various devices! Introducing a reliable compact circuit breaker that uses a fully electromagnetic design.

This catalog is a comprehensive catalog featuring the "Circuit Protectors" handled by Nikkō Electric. It includes various products such as the "IB Series," which is panel-mounted and can be manufactured with a rated current of up to 25A despite its ultra-compact size, as well as the "IMN Series" and "ICS Series," which standardly include an inertial delay. Please make use of this for selecting products. [Contents] ■ Operating Instructions ■ Rated Current List ■ Circuit Protectors ■ Overcurrent Protectors ■ Introduction of Related Products *For more details, please refer to the PDF materials or feel free to contact us.

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Next-generation circuit breaker that instantly limits overcurrent.

Minimizing overcurrent, it automatically enters current limiting and interruption operation, completing the interruption in a short time.

This technology is a power circuit breaker that adopts a completely new operating principle, not an extension of conventional technology. By highly integrating fuses and semiconductor switches, it enables the realization of a "next-generation circuit breaker" that can instantly limit overcurrent. - It can reliably prevent and completely interrupt abnormal large currents every time. - It allows for instant current limiting and interruption (AC, DC, overcurrent). - High-speed re-energization is possible. - High versatility (operating voltage 0.1 to 10 kV). - Due to high design flexibility, optimization for specific applications is easy. Comparison with existing circuit breakers for railways: - Interrupt time (approximately 40% reduction). - Device size (approximately 95% miniaturization). - Price (approximately 90% reduction). By dramatically reducing the risk of electrical equipment failure and improving current resistance, benefits such as miniaturization and cost reduction of electrical systems can be anticipated.

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Circuit breaker

Excellent convenience and durability, with options available to suit various applications! We have pursued ease of use.

We would like to introduce the "Circuit Breaker" handled by Miho Electric Co., Ltd. It features an aluminum frame plywood box type that excels in versatility and durability, making installation, removal, and relocation easy. The input and output sections use terminals and cam locks, while the switch section allows for the selection of circuit breakers such as ELCB, MCCB, or knife switches depending on the usage. Additionally, we can provide types equipped with parallel or C-30A outlets for service use. 【Features】 ■ Selectable circuit breakers such as ELCB, MCCB, and knife switches based on usage ■ Supports current values from 50A to 600A ■ Input and output compatible with terminals and cam locks ■ Aluminum frame plywood box focused on versatility and durability ■ Capable of designing, manufacturing, and selling equipment tailored to customer requests *For more details, please refer to the PDF document or feel free to contact us.

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Hydrogen gas alarm interlocking power cut-off device (Kichin to Miharu-kun)

This device is linked to a combustible gas detector and is used to cut off the power supply to the hydrogen gas generator when hydrogen gas leaks into the room.

The gas detector manufactured by RIKEN Keiki will cut off the power supply to the hydrogen gas generation device in conjunction with it. ■ Depending on the specifications, it is also possible to light up the patrol light or drive the valve when the gas detector issues an alarm. ■ Custom designs are available to meet customer requests. Please feel free to consult us. *This product is sold by our group company, Kinryo Electric, Analysis Sales Department. Kinryo Electric Co., Ltd., Analysis Sales Department: https://kinryo-electric.co.jp/analys/

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  • Analytical Equipment and Devices

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Explosion isolation device

Providing customized solutions for achieving dust-free and safe production!

The explosion isolation device is a passive one-way explosion-proof valve used in piping that contains combustible dust, allowing dust and gas to pass through the piping in only one direction, thereby preventing the reverse propagation of explosions. Proper use of the explosion isolation device can prevent the spread of dust explosions from downstream piping to upstream piping, effectively avoiding secondary explosions and multiple explosions, preventing the escalation of dust explosion accidents, and protecting the safety of people and property.

  • Other dust collectors and related products

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Circuit breaker "Explosion-proof wiring circuit breaker"

Circuit breaker with explosion-proof performance d2G4!

The "Explosion-proof Circuit Breaker" is a circuit breaker applicable to Class I and Class II hazardous locations. We offer various case shapes, including the NZB type with upper and lower terminal boxes, the NZR type with a lower terminal box, and the multi-unit NZL type. Please choose according to your application. 【Features】 ■ Maintains explosion-proof performance d2G4 ■ Applicable to Class I and Class II hazardous locations *For more details, please refer to the catalog or feel free to contact us.

  • Instrumentation and Control Systems

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Soil barrier device "Speed Guard" for depths of less than 1.5 meters.

Preventing labor accidents in small-scale trench work! New protective measures to reduce the risk of worker injury.

"Speed Guard" is a soil and sand barrier device designed for depths of less than 1.5 meters. Installation is completed automatically by simply lowering it into the trench. It efficiently and economically secures a safe working space for operators. Additionally, it can be lifted and moved by a single worker even within the excavation trench, and it can be folded or disassembled, making storage and transportation in small spaces easy. 【Features】 ■ Focused on preventing accidents at depths of less than 1.5m ■ Ensures a safe space even in the event of a collapse ■ New technology to protect workers from disasters ■ Lightweight and compact equipment ■ Easy to transport due to foldability *For more details, please refer to the PDF document or feel free to contact us.

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Used breaker, wiring circuit breaker, circuit breaker

Used breaker, wiring circuit breaker, circuit breaker

We are selling used breakers. They have the same functionality as new ones and are about half the price. This is a tested sale.

  • others

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Low Voltage Air Circuit Breaker IZM6 Series (CCC, IEC Certified)

Powerful protection, high reliability, compact. A new standard in power management where security and efficiency come together.

Main Features: - Newly designed decoupler: Achieves advanced functionality such as health checks, fault logging, and programmable relays with a new interface design. - Dedicated software: The PTM software, specifically for the PT decoupler, enables parameter settings, testing, event logging, waveform capture, and report generation. - Added 1600A housing, supporting compact and high-performance applications. - New secondary terminal design: Easy installation with plug-in secondary terminals. - More secondary circuit voltages: 24VAC/DC, 110AC/DC, 230AC/220DC, 400VAC, meeting industry requirements.

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  • Circuit breakers and switches

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Circuit breaker for distribution boards and control panels <spring clamp terminal specification>

Protection level IP20, no terminal cover required! Lineup up to rated current of 50A.

We have added a spring clamp terminal specification to our lineup of circuit breakers for distribution boards and control panels, the "KC Series (NF50-KC, NV50-KC)." This specification eliminates the need for skills in screw tightening work, reducing the risk of terminal screw loosening due to vibration, impact, and long-term use. There is no need for re-tightening work during the delivery and inspection of panels and machinery. The spring clamp terminal specification contributes to "reduced construction work," "stable quality," and "improved maintenance." 【Features】 ■ Possible reduction in wiring work time ■ No terminal cover required ■ No need for re-tightening work during the delivery and inspection of panels and machinery ■ Spring clamp terminal specifications can be accommodated for one side only, such as primary side screw terminals and secondary side spring clamp terminals ■ Specifications for spring clamp terminals can also be accommodated for only the included terminal blocks *For more details, please download the PDF or feel free to contact us.

  • Distribution Board
  • Circuit breakers and switches

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High Voltage Vacuum Circuit Breaker "VF-8D/13D Series"

Improved design efficiency of distribution boards and enhanced maintainability! It is also possible to reduce the capacity of the control power supply.

The high-voltage vacuum circuit breaker "VF-8D/13D series" is an environmentally friendly VCB that prioritizes ease of use and safety. It uses chromium-free steel plates that contain no hexavalent chromium, a soil contaminant, and applies hexavalent chromium-free rust prevention treatment to small parts such as pins and screws. Additionally, it adopts an all-center design that aligns the faceplate center with the operating mechanism frame to the main circuit center, further improving the design efficiency of the panel. 【Features】 ■ Future-oriented VCB with consideration for environmental conservation ■ Improved design efficiency of distribution boards and enhanced maintainability ■ Ensured safety during operation and improved environmental resistance ■ Energy-saving (motor current reduced to about 1/4 of conventional levels) *For more details, please download the PDF or feel free to contact us.

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  • Circuit breakers and switches

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[Data] Case Studies of Upgraded High Voltage Distribution Control Equipment, Transformers, and Power Factor Correction Capacitor Systems

Early updates to enhance the reliability of electrical equipment! We will also introduce factors that can shorten equipment lifespan.

This document explains examples of updates for high-voltage distribution control equipment, transformers, and power factor correction capacitor systems. It describes what happens when equipment deteriorates and the timing for updating equipment due to aging, along with examples of equipment degradation incidents in distribution and receiving facilities, including accident photos and their impacts. Additionally, it introduces the updating procedures for vacuum circuit breakers (VCB), the time required for replacements, applicable cases, and points to consider during updates. Please feel free to download and take a look. 【Contents (partial)】 ■ Examples of equipment degradation incidents in distribution and receiving facilities ■ Vacuum Circuit Breaker (VCB) ■ Vacuum Magnetic Contactor (VMC) ■ Air Magnetic Contactor (AMC) ■ Protection Relays *For more details, please download the PDF or feel free to contact us.

  • Transformers
  • Capacitor

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[Information] Shirutoku Report No. 68 # Types and Roles of Breakers

The breakers lined up in the distribution board are of different types according to their purposes!

★★Shirutoku Report: Useful Information You Should Know★★ The Power Supply Design Department designs various types of switching power supplies, such as AC-DC converters and DC-AC inverters, and conducts various evaluations and tests specific to power supplies. Among these tests, there are rigorous assessments known as "abnormal tests," which evaluate safety in the event of component failures. One of the important devices that protects evaluation equipment during such harsh tests is the "circuit breaker." Many may be more familiar with the term "breaker." In this report, we will introduce this breaker. [Contents] ■ Ampere Breaker: Maintains the current value contracted with the power company ■ Leakage Breaker: Protects commercial systems held by households and power companies from accidents ■ Safety Breaker: Maintains the current value for each circuit (each room) *For more details, please refer to the PDF document or feel free to contact us.

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