CB1911-20

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Circuit breakers are essential components in electrical control systems. They are used to control and protect electrical current and it is important to make sure they are in good working condition and properly maintained. The CB1911-20 is a type of circuit breaker used in many industries for a variety of applications. This article will describe the application field and working principle of the CB1911-20 circuit breaker.

The CB1911-20 is designed to be used in both low-voltage and high-voltage applications and is suitable for both residential and commercial systems. It is rated at 1000VAC, 50/60Hz with a 10amp current rating. This circuit breaker is primarily used for over-current protection in residential, commercial, industrial and other applications. It is also used for disconnection, short-circuit protection, or motor circuit protection as required.

The primary application of the CB1911-20 is for over-current protection. This type of circuit breaker is designed to automatically disconnect the power in the event of overload or short circuit conditions. It does this by interrupting the electrical current when the current exceeds a predetermined level. This is done by the use of magnetic fields and multi-point contacts within the breaker. The magnetic force created by the current pulls the contacts apart, interrupting the flow of current and preventing further damage to the system.

The CB1911-20 also has a temperature response feature that helps protect the device in the event of overheating. This feature senses the temperature of the circuit breaker and increases its trip time if the device becomes too hot. This reduces the risk of the circuit breaker tripping prematurely due to overheating. In addition, the CB1911-20 is designed to reduce the risk of false tripping due to line transients or surges.

Another application of the CB1911-20 is for disconnection. This type of breaker can be used to safely disconnect power from a system as quickly as possible. This can be done by reaching the minimum pole current threshold, which will trip the breaker and de-energize the circuit from the power source. The design of the breaker also allows for manual reset after the fault has been cleared.

The working principle of the CB1911-20 circuit breaker is based on the use of current, magnetic fields, and pressure. The device is designed with a spring loaded armature that is driven by an electromagnet. When the current flowing through the breaker exceeds the rated value, the electromagnet causes the armature to move, opening the contacts and interrupting the flow of current. This interrupts the power supply and prevents any further damage to the system.

In summary, the CB1911-20 circuit breaker is designed for a variety of applications, including over-current protection, disconnection, short-circuit protection, and motor circuit protection. It is important to make sure the device is properly maintained in order to ensure its proper functioning. The working principle of the device is based on the use of current, magnetic fields, and pressure to automatically interrupt the flow of current when an overload occurs.

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