SFY4-DC21V

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The SFY4-DC21V is a type of power relay that can be used in a wide range of applications. It is a non-polarized relays, meaning that it can be used with a variety of electrical and other components without any loss of functionality or reliability. It is a typical mid-power relay, designed to handle loads up to 2 amps.

The key advantage of the SFY4-DC21V is its ability to switch heavy currents and its low cost. It is one of the few non-polarized relays designed to handle loads up to 2 amps, making it suitable for a variety of applications. Additionally, the SFY4-DC21V has a wide range of operating voltages, from 12VDC to 250VDC.

In terms of the working principle of the SFY4-DC21V, it is essentially an electromechanical switch, controlled by an electromagnetic coil. When the coil is energized, a magnetic field is generated, which acts on a mobile contact to open or close the relay. This process is repeated when the current stops or the voltage changes. When the power is turned off, the contact opens and the relay is activated.

The SFY4-DC21V has a wide application field and can be used in a variety of applications, such as automotive and industrial control, lighting, telecommunications, sound and industrial process. In addition, it can also be used in devices such as electronic timers, motion sensors, relays and PLCs. These devices will benefit from the low power draw, high switching capacity, and reliable operation of the SFY4-DC21V.

The SFY4-DC21V is a versatile, mid-power relay, capable of providing reliable and efficient operation in a variety of applications. Its low cost, wide operating voltage range, and ability to handle up to 2 amps make it ideal for a variety of applications. It is a reliable and cost-effective solution for a large variety of switching applications.

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