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This section provides an overview for power breakers as well as their applications and principles. Also, please take a look at the list of 2 power breaker manufacturers and their company rankings.
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A power breaker, commonly referred to simply as a breaker, is an essential component in electrical systems. It is used to connect power lines to electrical machinery, typically through a power distribution or control panel. The connection from the breaker to the machinery is often made using components like electromagnetic contactors.
Power breakers are vital not only in industrial settings but also in residential environments.
Power breakers are crucial for protecting equipment and preventing fires by interrupting the power supply in cases of overcurrent. This function is essential when connecting devices like plugs or operating power-driven machinery.
There are two main types of power breakers: wiring breakers and leakage breakers. Wiring breakers, also known as safety breakers, cut off the power supply when the current exceeds a set limit. Leakage breakers perform a similar function but also detect and interrupt power leakage from equipment or wiring.
The capacity of a breaker is indicated by its Ampere Frame (AF), which also determines the size and interrupting capacity. The rated current is represented by Ampere Trip (AT), denoting the current level at which the breaker will trip. AF indicates the maximum current a breaker can handle, while AT specifies the tripping threshold.
Breakers can trip based on three different mechanisms. The first is thermal-magnetic, utilizing a bimetal strip that bends when heated by overcurrent, triggering a trip. The second is electromagnetic, where an electromagnetic force generated by overcurrent overcomes a spring, causing the breaker to trip. The third type is electronic, employing circuitry to detect overcurrent and activate the tripping mechanism.
*Including some distributors, etc.
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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.
Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
Japan
|
1 | 50.0% |
|
Germany
|
1 | 50.0% |
131 products found
131 products
Tomocombi Co., Ltd.
210+ people viewing
Last viewed: 1 minute ago
Fast Response
■Features ・Ex9BP-JX dc breaker ・Voltage 180V to 1,000VDC ・Rated current 1A to 63A ・Non-polar connection ・AX AL SHT UVT OVT ・TUV CE CB certified
Tomocombi Co., Ltd.
200+ people viewing
Last viewed: 1 minute ago
Fast Response
■Features ・Ex9BP dc breaker ・Voltage 180V to 1000VDC ・Rated current 1A to 63A ・2P width 36mm ・AX AL SHT UVT OVT ・TUV CE CB certified
JEL SYSTEM CO,LTD.
110+ people viewing
Last viewed: 53 minutes ago
Standard Response
JCS (Gel Control System)" targets consumers who receive low-voltage power, and changes the low-voltage power contract from a "load equipment contra...
2 models listed
Esco Co., Ltd.
50+ people viewing
Last viewed: 20 hours ago
Standard Response
■A “safe, secure, and reliable brand” achieved by the industry’s No.1 As a manufacturer, Esco independently develops high-performance electronic br...
Otowa Electric Industry Co., Ltd.
380+ people viewing
Last viewed: 55 minutes ago
■Features 1. Determine whether it is lightning surge or load abnormality The "reset breaker" is an automatic power breaker restart device that will...
10 models listed
Kyushu Kiden Co., Ltd.
440+ people viewing
Last viewed: 50 seconds ago
5.0 Company Review
■Features ・Economic form ・Small and inexpensive, saving equipment costs There are other model numbers as well.
10 models listed
Kyushu Kiden Co., Ltd.
650+ people viewing
Last viewed: 49 seconds ago
5.0 Company Review
■Features ・Standard type ・A wide variety of models available and can be used in a wide range of applications There are other model numbers as well.
10 models listed
Kyushu Kiden Co., Ltd.
390+ people viewing
Last viewed: 1 hour ago
5.0 Company Review
■Features ・High cut-off type ・High breaking capacity model There are other model numbers as well.
10 models listed
Kyushu Kiden Co., Ltd.
490+ people viewing
Last viewed: 38 minutes ago
5.0 Company Review
■Features Circuit breaker for distribution board
7 models listed
Kyushu Kiden Co., Ltd.
100+ people viewing
Last viewed: 22 minutes ago
5.0 Company Review
■Summary A circuit breaker that combines the functions of a fuse-free circuit breaker and an earth leakage relay. ■Features In addition to overloa...
Kyushu Kiden Co., Ltd.
120+ people viewing
Last viewed: 54 minutes ago
5.0 Company Review
■Summary A circuit breaker designed to protect single-phase three-wire circuits from phase loss. ■Features Single-phase 3-wire system (AC100/200V)...
Kyushu Kiden Co., Ltd.
110+ people viewing
Last viewed: 54 minutes ago
5.0 Company Review
■Summary By combining with a low voltage insulation monitoring unit, early detection of equipment insulation deterioration and preventive maintenan...
Kyushu Kiden Co., Ltd.
120+ people viewing
Last viewed: 54 minutes ago
5.0 Company Review
■Summary A circuit breaker that protects the motor and wiring
3 models listed
Kyushu Kiden Co., Ltd.
400+ people viewing
Last viewed: 1 hour ago
5.0 Company Review
■Summary Emergency power circuit breaker (class 1/class 2 heat resistant type)
7 models listed
Kyushu Kiden Co., Ltd.
790+ people viewing
Last viewed: 49 minutes ago
5.0 Company Review
■Features ・Standard type ・Small and inexpensive, saving equipment costs There are other model numbers as well.
10 models listed
