LY3F-AC120

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Power Relays, Over 2 Amps use devices such as LY3F-AC120 to control the flow of power in electrical circuits. This type of relay works by breaking or making a connection between two contacts when a specific current or voltage is applied. In this article, we will discuss the application field and working principle of LY3F-AC120.

LY3F-AC120 is a highly reliable three-phase power contactor. It is designed for cabinet or terminal type mounting, and it is mainly used for AC motor control. The LY3F-AC120 has six contact points, three normally open and three normally closed. It is equipped with a coil voltage of 220V/50Hz and three sets of independent insulated silver-nickel contact points that are resistant to short-circuits. The contact point is rated up to 2 A, and the continuous operating current is 20A.

The application field of LY3F-AC120 includes power distribution, such as circuit opening and closing in residential and commercial buildings. It is also used for controlling AC motor operation in manufacturing plants, such as controlling motors for material handling or industrial systems. In addition, LY3F-AC120 can be used in automatic control systems, such as automatic doors, windows, lighting, air conditioning and heaters.

The working principle of LY3F-AC120 is based on the electromagnetism. When the specified voltage is applied to the coil, an electromagnetic field is generated. Then, the electromagnetic field produces a force that causes the contact points to be attracted to each other, making them connect. When the voltage is removed, the electromagnetic force is also removed and the contact points are released, allowing them to open the connection.

In order to ensure the safety of the electrical system, it is important to know the characteristics of the device used. LY3F-AC120 has a contact force of 120N, insulation resistance of 500MΩ, and dielectric strength of 4500V. Additionally, the rated current for the contact points can range from 0.1A to 2A. It is also resistant to short-circuit currents of up to 10kA.

The LY3F-AC120 has many advantages, such as high reliability, high-performance contact force, and low energy consumption. It is also easy to install and maintain. It is an ideal solution for controlling the power flow in large commercial and residential buildings. It is also suitable for controlling the AC motor in industrial applications.

In conclusion, LY3F-AC120 is a 3-phase contactor designed for cabinet or terminal mounting. It is mainly used for AC motor control in large commercial and residential buildings. Its working principle is based on the electromagnetism and it has a high contact force, insulation resistance, and dielectric strength. Additionally, it is also resistant to short-circuit currents of up to 10kA. The combination of features makes it perfect for controlling the power flow in almost any application.

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