0900139

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Circuit Breakers

A 0900139 circuit breaker, also known as a miniature circuit breaker (MCB) or micro-circuit breaker, is a device designed to protect electrical systems from overload and short-circuit damage. In short, they serve to detect when the flow of electricity from source to a protected area has exceeded an acceptable level, and then disconnect that area to prevent further damage. Such circuit breakers are commonly found in large buildings, industrial facilities, and ships.

Application field and Working Principle

The 0900139 circuit breaker is designed to be used in residential and light commercial applications. It is most commonly used to protect small electrical systems such as those found in homes or apartments from overload and short-circuit damage. This type of protection is necessary to prevent the costly damage that can occur when an overload or short-circuit occurs.

The 0900139 circuit breaker uses a thermal-magnetic tripping system to detect fault current flow and detect an overload. This system uses a thermal element that is heated by the current flow and a magnetic element that is activated by the current flow. When the current is higher than the rated limit, the thermal element warms up causing the bimetal strip within the breaker to flex. This causes the breaker to trip and open the circuit. Similarly, if the current becomes too high, the magnetic element within the breaker is also activated causing the bimetal strip to flex and trip the circuit breaker. The combination of both elements ensures a fast response time to protect both the device and the system.

In addition, the 0900139 provides adjustable overload protection. This feature allows the circuit breaker to be adjusted to fit the exact needs of the application. This allows the user to easily adjust the trip level to a level that will protect their system from damage caused by an overload or short circuit. The adjustable overload protection also prevents nuisance trips which can cause costly outages and possible equipment damage.

The 0900139 also features a rated interrupting capacity (RIC) of 100 times the rated current of the circuit breaker. This ensures adequate protection against short circuits, providing superior system protection.

Lastly, the 0900139 provides an enhanced level of safety. Its design ensures it will safely trip even in the event of a power surge or an overvoltage condition. This improved level of safety also ensures the breaker will trip and keep the system safe even in the event of an unexpected power failure.

Overall, the 0900139 circuit breaker is an ideal solution for small electrical systems, providing protection from both overload and short-circuit damage. With adjustable overload protection and an enhanced level of safety, the 0900139 is an excellent choice for both residential and light commercial applications.

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