Last Updated： Aggregation Period:Oct 07, 2026～Nov 03, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Oct 07, 2026～Nov 03, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Oct 07, 2026～Nov 03, 2026
This ranking is based on the number of page views on our site.
31～60 item / All 64 items
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.
EATON provides suitable solutions for PV and energy storage systems with years of development and manufacturing experience.
We offer a lineup of MCCB breakers compatible with DC 1500V, suitable for larger industrial and public solar power generation systems and mega power plants. These can be utilized in junction boxes, DC cabinets, inverters, and energy storage inverters.
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.
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.
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.
![[Data] Case Studies of Upgraded High Voltage Distribution Control Equipment, Transformers, and Power Factor Correction Capacitor Systems](https://image.mono.ipros.com/public/product/image/e9e/2001521437/IPROS14144945281090289729.png?w=280&h=280)
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.
![[Information] Shirutoku Report No. 68 # Types and Roles of Breakers](https://image.mono.ipros.com/public/product/image/f65/2000703526/IPROS03996327890363340716.jpeg?w=280&h=280)
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.
Cylindrical cutouts suitable for snow damage and vibration measures!
The "CF Circuit Breaker (Cylindrical)" is a cutout that can be used in combination with high-voltage fuses for transformer protection. We offer models such as the "Salt-resistant Type," which has a sealed structure and excellent salt resistance, and the "HC Type," which can handle a large capacity interruption of 12,500A. 【Features】 ■ Can be used for transformer protection in combination with high-voltage fuses ■ Suitable for snow damage and vibration countermeasures ■ Extensive lineup available *For more details, please download the PDF or feel free to contact us.
Cutout with built-in ZnO elements to protect equipment from salt damage and lightning damage!
The "HCZ" is a cylindrical CF circuit breaker equipped with ZnO elements that provides surge protection for transformers and fuses through the incorporation of ZnO elements. It is a double fuse type designed for salt damage areas and heavy salt damage areas, capable of protecting equipment from salt damage and lightning damage. 【Features】 - More space-saving and economical than using surge protectors and cutouts separately - No fuse blowout due to lightning surges - Excellent non-linearity, suppressing lightning surges with no continuous current, and performs well against multiple lightning responsibilities - Smaller cross-sectional area with greater discharge withstand capability compared to SiC elements, allowing for miniaturization - High performance and high reliability exceeding JIS standard values *For more details, please download the PDF or feel free to contact us.
It is possible to instantly and safely disconnect the high voltage and current circuits of electric vehicles such as BEVs, PHEVs, HEVs, and FCVs equipped with large-capacity batteries!
Our company, as a world-leading fuse manufacturer, produces highly reliable and high-quality products with unparalleled specialized technology. We manufacture pyro fuses that can instantaneously and safely interrupt high-voltage and current circuits in electric vehicles such as BEVs, PHEVs, HEVs, and FCVs equipped with large-capacity batteries, as well as in stationary power sources, responding to the needs of the electric vehicle market. 【Features】 ■ Capable of instantaneously interrupting high-voltage and current circuits in electric vehicles such as BEVs, PHEVs, HEVs, and FCVs equipped with large-capacity batteries. ■ To meet diverse needs, PEC is developing not only conventional fuses but also pyro switches.
Safety of electricity, as a standard.
Tower Manufacturing Corporation is a specialized manufacturer of electrical safety devices that designs and produces high-reliability GFCI (Ground Fault Circuit Interrupter) products for industrial, construction, commercial, and residential applications. All GFCIs are designed based on UL safety standards, providing reliable protection that minimizes the risk of electric shock and electrical fires even in harsh job site environments. The company's engineering team has over 100 years of design and development experience and offers optimized GFCI solutions for power tools and portable equipment used in industrial and construction settings.
![[Division Introduction] Electrical Division (Marugame Factory)](https://image.mono.ipros.com/public/product/image/f87/2000358217/IPROS2194853667317348927.PNG?w=280&h=280)
From insulating material board processing to circuit breaker production! We also engage in network operation and software development.
Meikō Industry's "Electrical Division" handles the processing of insulating boards made from materials such as PVC, acrylic, and polycarbonate, as well as the production and maintenance of circuit breakers. We also engage in the processing of thermosetting laminated boards, machining, bending, and adhesive processing of thermoplastic resin boards, production of power circuit breakers, and manufacturing of units for distribution boards. Additionally, we have established the Marugame Information Systems Department, which manages and repairs networks, and handles software development and equipment sales. 【Product Examples】 ■ Circuit Breaker Assembly ■ Distribution Board Handle Assembly ■ Processed Products of Bakelite Boards, PVC, and Acrylic ■ Processed Products of Epoxy and Carbon ■ Processed Products of Glass Epoxy and BMC *For more details, please refer to the PDF materials or feel free to contact us.
![Manual Barrier [Vertical]](https://image.mono.ipros.com/public/product/image/098/2000132621/IPROS78897452356626125923.jpeg?w=280&h=280)
Various uses such as traffic regulations and simple gates!
The "Manual Barrier [Vertical]" is a product that is highly effective not only for safety measures but also for cost reduction strategies. It excels in operability and visibility as a simple gate, and its flexible design allows for installation in various environments, creating safety. It can also be installed for traffic regulation and as a simple gate.
Since it is a completely electromagnetic circuit breaker, it has operating characteristics that are not affected by surrounding temperature! Immediate re-energization after tripping is possible! Fine ratings can be selected from low currents!
1. Applications suitable for DM30 (30AF) Small capacity power branching in control panels and operation panels Small current branching circuits for instrumentation equipment, PLC power supplies, DC power units, indicator lamp circuits, etc. Protection just before low ampere devices Even in circuits around 1A to 10A, which are less commonly provided by general MCCBs, it can be installed as a panel breaker with a sense similar to that of a circuit protector. Space-saving branching within panels Due to its compact shape, it is suitable for cases where space-saving is desired in panels with many branching circuits. 2. Applications suitable for DM50 (50AF) Power panels and power branching circuits Branching circuits for small three-phase induction motors (pumps, fans, compressors, etc.) and heater loads at 200V class. Main receiving section of distribution boards and medium capacity main line branching The main breaker of a small panel when DM30 is used as a branching circuit, or medium capacity feeder circuits of power distribution boards. Systems with slightly larger inrush current and short-circuit capacity Busbar direct connection circuits where the power capacity is large, and there is a risk that the rated interrupting capacity (kA) may be insufficient with 30AF.
Because it's the fully electromagnetic breaker New-FM from Nichi-Ko Electric Works, it is 【not affected by ambient temperature!】【immediate re-energization is possible!】
Common strengths of New-FM (completely electromagnetic) Both series are completely electromagnetic with an oil dashpot type that does not use bimetal. Not affected by ambient temperature: Even in environments where the control panel is sealed and high-temperature (over 40°C to 50°C), there is no concern about the rated current value shifting and causing erroneous trips. Immediate re-engagement is possible: After tripping due to overcurrent, you can immediately turn the lever ON after removing the cause without waiting for the bimetal to cool down.
50AF (Ampere Frame) circuit breaker for wiring in the New-FM series of fully electromagnetic breakers by Nichiyu Electric Manufacturing Co., Ltd.
NS50A Series (NS52A / NS53A) [General Wiring Protection - Standard Breaker Type] A versatile 50AF model with standard breaking capacity. Due to its fully electromagnetic design, it does not experience false tripping due to ambient temperature even in high-temperature environments such as sealed control panels in summer, and it can be reset immediately after tripping. NS50AH Series (NS52AH / NS53AH) [General Wiring Protection - High Breaking Type] An advanced model with significantly enhanced rated breaking capacity (kA value) compared to the standard type (NS50A). It prevents damage to the breaker itself even in the event of a short circuit accident and safely interrupts large currents reliably. MNS50A Series (MNS53A) [Motor Protection Compatible - Standard Breaker Type] Equipped with a "motor-specific delay characteristic" that allows inrush currents of 5 to 8 times the rated current generated during motor startup to pass without tripping. It trips quickly during constraints, steady overloads, or short circuits. MNS50AH Series (MNS53AH) [Motor Protection Compatible - High Breaking Type] A heavy-duty model that combines "large inrush current delay specifically for motor protection" with "high rated breaking capacity (H specification)." It provides reliable motor protection even in harsh power supply environments.
The New-FM series from Nichiko Electric is a fully electromagnetic circuit breaker that uses an electromagnetic coil and a cylinder (dashpot) filled with silicone oil.
Since it does not have a thermal element like a bimetal that does not change its operating characteristics with ambient temperature, the trip current is not affected by the internal temperature of the panel or the outside air temperature (temperature difference), allowing for stable continuous current flow up to 100% of the rated value. Immediate re-energization after tripping is possible; after an overload trip, there is no need to wait for the bimetal to cool down. If the cause is removed, the handle can be reset immediately to restore power (reducing recovery time). Both overcurrent and short circuit are protected with high precision; for mild overcurrent, a delay due to the viscosity resistance of the oil is applied (time delay operation), while for large short circuit currents, the armature is immediately attracted without waiting for the core to retract in the oil, resulting in instantaneous disconnection.
[2023 Discontinued Product] [Replacement] Fully Electromagnetic Circuit Breaker 'New-FM Series NY60A / MNY60A'
[Recommended alternative models: We recommend 100A frame circuit breakers with a rated current of 60A for each circuit breaker.] If you have any questions or concerns, please contact the Sales Department of Nikkou Electric Manufacturing Co., Ltd. at 044-455-1211. Nikkou Electric Manufacturing's "New-FM Series NY60A / MNY60A" is a 60AF wiring circuit breaker that employs a fully electromagnetic (oil dashpot type) mechanism for the tripping function. It features stable tripping characteristics that are not affected by temperature changes within the panel, and allows for immediate re-energization after tripping. We offer two models: the "NY type" for wiring protection and the "MNY type" for motor protection.
No malfunction even at high temperatures inside the panel. Fully electromagnetic 100AF wiring circuit breaker 'New-FM Series NS100A / MNS100A'.
The "New-FM Series NS100A / MNS100A" from Nichiko Electric Manufacturing Co., Ltd. is a 100AF circuit breaker that adopts a fully electromagnetic design with an oil dashpot mechanism. It provides high-precision overcurrent protection that is unaffected by ambient temperature and enables immediate re-engagement right after tripping. It is available in two types: the "NS100A" for wiring protection of main and branch circuits, and the "MNS100A" for motor protection.
A detailed explanation of the high-quality electrical components provided by Albright Japan Co., Ltd.!
Recently, as the adoption of electric vehicles has progressed, the safety and reliability of electrical equipment have become increasingly important. In particular, the circuit breakers installed in electric vehicles play a crucial role in preventing accidents and failures. This article will provide a detailed explanation of the high-quality electrical components offered by Albright Japan Co., Ltd., and convey the importance of circuit-breaking technology in electric vehicles. *For more details on the column, please refer to the related links. Feel free to contact us for more information.*
![[Leakage Circuit Breaker Assembly Example] Assembly of Paircom Components](https://image.mono.ipros.com/public/product/image/2001668506/IPROS856669450317405120.jpg?w=280&h=280)
No defects with 200 cameras and 50 craftsmen! A case study on the assembly of leakage circuit breakers.
We will introduce a case where a major electrical manufacturer has continuously received orders for over 40 years. Residual current devices pose a risk of causing large-scale damage, such as fires, in the event of a defect, which necessitates extremely strict quality control with no tolerance for any issues. However, the assembly of a wide variety of parts, which is difficult to automate, requires manual handling, making it a challenge to balance quality maintenance and production responsiveness. In this case, a "defect monitoring system" utilizing approximately 200 video cameras was implemented. By recording and managing the assembly and visual inspection processes through video, we ensure reliable traceability. On-site, a team of about 50 people is always in place to carefully carry out all processes, including delicate soldering work, by hand. [Challenges] ■ There is a risk of causing large-scale damage, such as fires, in the event of a defect, which necessitates extremely strict quality control with no tolerance for any issues. ■ The assembly of a wide variety of parts, which is difficult to automate, requires manual handling, making it a challenge to balance quality maintenance and production responsiveness. *For more details, please download the PDF or feel free to contact us.
Leakage Current Circuit Breaker 【LCB 15mA 100V 15A PSC AAM A】
The LCB15mA100V15A PSC AAM A is a high-performance leakage circuit breaker for warm water toilet seats that combines safety and security. Additionally, it is wall-mounted, making installation easier. ■ Rated input current: AC15A ■ Sensitivity current: 15mA ■ Dimensions: 35.0 × 30.0 × 80.0 mm *For more details, please refer to the PDF document or feel free to contact us.*
Guide the opening and closing arc to the arc extinguishing chamber! Designed to meet strict arc extinction conditions.
We would like to introduce our "Deterministic Control Device Series," which features five types of functions in the same ultra-compact DIN rail size that we handle. The DIN rail mounting is equipped with a two-stage snap mechanism that allows for easy and secure attachment to a 35mm DIN rail. It offers a simple and efficient installation. It complies with the standards IEC60898-1995 and IS/IEC60898-1:2002, ensuring quality for optimal performance. 【Product Lineup】 ■ Ultra-compact Circuit Breaker ■ DC Ultra-compact Circuit Breaker ■ Isolator ■ Bidirectional Circuit Switch ■ Earth Leakage Circuit Breaker *For more details, please refer to the PDF document or feel free to contact us.
Introducing a product that sets a new standard for user-friendly, top-class electrical circuit protection.
This catalog features a series of definitive control devices handled by our company. We provide a detailed introduction to the characteristics, structure, technical data, and product descriptions of the "ultra-compact circuit breakers" using photos and tables. The content is designed to be easily referenced when selecting products. Please feel free to download and take a look. [Contents] ■ WINTRIP-MCB Ultra-compact Circuit Breaker ■ MCB Type Circuit Switching Switch ■ WiNtrip 2 - Ultra-compact Circuit Breaker ■ Product Description: Disconnectors and DC MCBs ■ WiNtrip Ground Fault Detection Circuit Breaker *For more details, please refer to the PDF document or feel free to contact us.
"Free samples" are currently being offered! Please check the application method from the [PDF download] button, or apply directly through the related links.
The global residual current circuit breaker (RCCB) market is projected to grow from 2.11 billion USD in 2022 to 2.29 billion USD in 2023, with a CAGR of 8.3%. The war between Russia and Ukraine has disrupted the potential for global economic recovery from the COVID-19 pandemic. This conflict has led to economic sanctions on multiple countries, soaring commodity prices, and supply chain disruptions, causing inflation across goods and services and impacting many markets worldwide. The residual current circuit breaker (RCCB) market is expected to reach 3.01 billion USD by 2027, growing at a CAGR of 7.1%. In 2022, North America was the largest region in the residual current circuit breaker (RCCB) market. The regions covered in the RCCB report include Asia-Pacific, Western Europe, Eastern Europe, North America, South America, and the Middle East & Africa.
In the midst of the fervent atmosphere, unwavering calmness. A completely electromagnetic breaker that is not swayed by the surrounding temperature!
NS30A / NS30AB (General Wiring Protection) This is a 30AF circuit breaker designed to reliably protect electric heating, lighting, and various control power circuits within industrial machinery and control panels. Thanks to its fully electromagnetic design, it does not malfunction even when the internal temperature rises due to high-density mounting. In addition to the standard surface wiring model "NS30A (NS32A/NS33A)," we offer the "NS30AB (NS32AB/NS33AB)" which allows for stud wiring from the back of the panel. This enables optimal layout design tailored to the panel structure, achieving a smart panel configuration that minimizes wiring exposure on the surface and saves space. 3. MNS30A / MNS30AB (Motor Protection Compatible) This is a motor protection compatible model designed to handle the transient high inrush currents that occur during the startup of three-phase and single-phase induction motors (such as pumps, fans, compressors, etc.). It features a motor-specific delay characteristic using an oil dashpot, ensuring that unnecessary trips during startup are reliably prevented, while also providing rapid disconnection in milliseconds during abnormal conditions such as binding or short circuits. We offer both the standard wiring model "MNS30A" and the back wiring model "MNS30AB," achieving toughness for immediate re-engagement even in environments with heavy startup loads, along with flexible internal panel mounting capabilities.
![[University Seed Special] Technology Collection for Open Innovation Vol. 3](https://image.mono.ipros.com/public/product/image/ad5/2000805012/IPROS67882411067914618985.png?w=280&h=280)
This is a collection of university-developed patented technologies that hold the potential to solve your company's challenges! We have numerous achievements in industry-academia collaboration. If you are interested in any technologies, please feel free to contact us.
★Iron-based Plating Electrode★ - This is a technology for "platinum alternative materials" that achieves high cost performance. (Application) Alkaline water electrolysis devices / Hydrogen production ★Efficient Control of Enzymatic Browning (Water-soluble Tyrosinase Inhibitor)★ - This leads to prevention of skin photoaging, suppression of food browning, and prevention of microbial infections. (Application) Functional cosmetics, food browning inhibitors ★Power Circuit Breaker that Instantly Limits Overcurrent★ - It automatically enters current limiting and tripping operations while minimizing overcurrent, completing the trip in a short time. (Application) Power distribution systems, electric vehicles, data centers, etc. ★Evaluation Method for "Deformation Characteristics and Stability" of Rock Structures★ - Essential evaluations for rock structures can be assessed through "deformation anisotropy" and "simple shear." (Application) Foundation work, seismic design, maintenance management ★High-Efficiency Buck DC-DC Converter★ - Improved load response of existing buck DC-DC converters, increasing efficiency for high buck and large current applications. (Application) Many-core processors, non-volatile memory storage, etc. ★Photocatalysts and Photoelectrodes for Water Splitting★ - This is a technology for photocatalysts aimed at achieving high efficiency in "artificial photosynthesis." (Application) High-efficiency solar hydrogen production, decomposition of organic substances.
【電子部品の調達支援】生産中止品（EOL品）や入手困難な電子部品・半導体の緊急調達をサポート！徹底的な検査体制を整備。
【こちらの型番製品をお探しですか？】 ■メーカー名：Siemens ■型番名：3RV2021-4BA25 オーエン株式会社は、生産中止や納期トラブルにより入手困難になった電子部品を 世界中のネットワークからスピーディーに緊急調達いたします。 必ずお見積書を発行いたしますので、発注前に詳細を確認できて安心です。 市場流通在庫を20年にも渡り見続けてきたベテラン検査員が検査を行い、 合格品のみを出荷します。全ての納品物には検査報告書を同封します。 【当社の検査体制】 ■X線検査 非破壊検査で内部構造を確認し、模造品や粗悪品を検出します。 ■マイクロスコープ リード曲がりや、印字フォントの違和感も細かく確認します。 ■デジタルノギス 100分の1mm単位の寸法測定で、巧妙に作られた模造品を検出します。 ■カーブトレーサー 端子間の電圧・電流の特性波形を画面上に表示し、不良品を検出します。 ★下記のリンクから当社ウェブサイトをご覧ください。 ★下記のダウンロードボタンからは、当社の会社案内をご覧いただけます。 ▼その他お問い合わせ可能な型番は、下記ラインナップをご参照ください。
This report systematically organizes the medium to long-term growth trends of the hydraulic magnetic circuit breaker market through both quantitative and qualitative analyses.
This document provides an explanation of the global market size for hydraulic magnetic circuit breakers. It covers an overview of hydraulic magnetic circuit breakers, analysis by product type, analysis by application, analysis by company, analysis by region, technological innovations, and future market outlook. Our company, based in Tokyo, integrates industrial information from around the world and provides reports to support corporate decision-making. *For more details, please download the PDF or feel free to contact us.*
