What is the difference between Miniature circuit breakers and other products of the same type?
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What is the difference between Miniature circuit breakers and other products of the same type?

Views: 0     Author: Site Editor     Publish Time: 2022-08-05      Origin: Site

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The Miniature circuit breaker can be used to distribute electrical energy, rarely start asynchronous motors, and protect power lines and motors. In case of severe overload or short circuit and undervoltage errors, they can automatically switch off the circuit. Its function is equivalent to a backup type. Combination of switch and overheating relay, etc. In addition, it is generally not necessary to replace the components after the residual current is interrupted. At present, the miniature power switch is widely used.



What is the difference between Miniature circuit breakers and other products of the same type?

What is the difference between Molded case circuit breaker and Miniature circuit breaker in application?

What is the working process of the Miniature circuit breaker?



What is the difference between Miniature circuit breakers and other products of the same type?

A Miniature circuit breaker with a rated current of 1~63A is called MCB, i.e. a Miniature circuit breaker or micro-break for short.

The Miniature circuit breaker of 63 A.800 A is referred to as MCCB, that is, as a plastic housing Miniature circuit breaker, which is referred to as plastic housing.

The 800A.6300A Miniature circuit breaker is called ACB,which is the universal frame breaker.

When the current rises, it is a vacuum Miniature circuit breaker, which is a high voltage Miniature circuit breaker. The first three belong to low voltage Miniature circuit breakers.



What is the difference between Molded case circuit breaker and Miniature circuit breaker in application?

The main function of the molded case circuit breaker (called MCCB) is to provide overload and short circuit protection in the low voltage power distribution system and motor protection circuit. Due to its reliability and stability, it has become a widely used product in the industry. Miniature circuit breakers (called MCBs) are also Miniature circuit breaker products with a wide selection and quantity. The main function is to provide protection for building power distribution devices for electrical terminals. Since both belong to circuit breakers and Miniature circuit breakers are mainly used for switching small capacities, it is very realistic and important to understand the difference between the two and choose the right product.


What is the working process of the Miniature circuit breaker?

When a short circuit occurs, the magnetic field generated by the large current (generally 10–12 times) overcomes the reaction force spring, the release of the Miniature circuit breaker pulls the actuation mechanism to act, and the switch immediately triggers.

When overloaded, the current becomes larger, heat generation increases, and the bimetal sheet deforms to a certain degree to promote the action of the mechanism (the greater the current, the shorter the action time).

The main contacts of the Miniature circuit breaker are operated manually or electrically closed. After the main contact is closed, the free release mechanism locks the main contact in the closed position. The coil of the overcurrent trigger and the thermocouple of the thermal trigger are connected in series with the main circuit, and the coil of the undervoltage trigger is connected in parallel with the power supply.



The selection of the most suitable among the many providers also requires careful consideration. Zhejiang Shilong Electric Technology Co., Ltd. has been a Chinese pioneer in the field of Miniature circuit breakers for several years. You can provide all the connections you need. At the same time, their after-sales service is also very considerate.


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