UPL21-30477-1 Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Circuit breakers are an important part of the electrical system in any industry or home. A circuit breaker is a device that can open and close an electrical circuit in order to protect it from damage caused by overcurrent or short circuiting. UPL21-30477-1 is one type of circuit breaker, and it has a number of specific applications and working principles.

The main application for UPL21-30477-1 is in the high-voltage distribution network, where it is used to protect the network from serious damage caused by overcurrents. It is capable of detecting both short-term and long-term overcurrents, and can cut off the current before it becomes too intense. The UPL21-30477-1 is also often used in industrial settings to protect high-powered systems from overloads, as well as in residential settings to protect house wiring.

The working principle of the UPL21-30477-1 is simple and effective. In its normal state, the breaker is closed and electrical current flows normally through it. When the breaker detects an overcurrent, it will open, interrupting the current flow and protecting the circuit from damage. This is done by a combination of a thermal and magnetic element. The thermal element is responsible for detecting short-term overcurrents and cutting off the current as soon as it reaches a certain level, while the magnetic element triggers the breaker to open when a larger, sustained overcurrent is detected.

In order to ensure that the UPL21-30477-1 is effective, it must be carefully calibrated. During installation, the breaker must be set to the correct value of trip current, i.e. the level of current above which the breaker will trip and interrupt the current. Once correctly calibrated, the breaker can provide reliable protection for the circuit it protects.

UPL21-30477-1 is an important safety device, preventing serious damage to the electrical system by protecting it from overcurrents. It has a simple working principle and a number of specific applications, and is reliable when correctly calibrated. For these reasons, it is one of the most important circuit breakers available today.

The specific data is subject to PDF, and the above content is for reference