UB2-5NE

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Signal relays are electronic components designed to switch electrical signals between two points. The UB2-5NE is a signal relay designed to switch up to 2 Amps of current. In this article, we’ll discuss the application field and working principle of the UB2-5NE.

Application Field

The UB2-5NE relay is designed for general-purpose switching applications in electrical and electronic systems. It is often used to control typical household lighting and appliance circuits. Additionally, it can be used in industrial and commercial applications, such as motor control, machine control, and other power switching applications.

Working Principle

The UB2-5NE relay works by using an electromagnet to open and close an electrical circuit. When the relay coil is energized, the electromagnet creates a magnetic field which moves a lever and opens the electrical circuit. When the relay coil is de-energized, the electromagnet\'s field collapses, allowing a spring to move the lever back and close the electrical circuit.

In order to move the lever and open the electrical circuit, a certain amount of current is required to be applied to the relay coil. This amount is known as the pick-up current. The UB2-5NE relay has a pick-up current of 0.7–1.2 Amps. Once the pick-up current is exceeded, the electromagnet will create a strong enough magnetic field to move the lever and open the circuit.

When the relay is in the open state, a certain amount of current known as the drop-out current will be required to de-energize the relay coil and collapse the field. This drop-out current is typically lower than the pick-up current, allowing the relay to de-energize at a lower current level. The UB2-5NE relay has a drop-out current of 0.35–0.5 Amps.

In order to protect the relay from damage, the UB2-5NE is equipped with a built-in fuse. This fuse will blow if the pick-up or drop-out currents are exceeded. This prevents the relay from overheating and reduces the risk of fire.

In addition to the pick-up and drop-out currents, the UB2-5NE also has a maximum switching current rating of 2 Amps. This is the maximum current that the relay can safely switch without any damage or overheating. Exceeding this current rating can cause permanent damage to the relay.

Conclusion

The UB2-5NE is a signal relay designed for general-purpose switching applications up to 2 Amps. It works by using an electromagnet to open and close the electrical circuit. It has a pick-up current of 0.7–1.2 Amps and a drop-out current of 0.35–0.5 Amps, as well as a maximum switching current of 2 Amps. Additionally, it is equipped with a built-in fuse to protect it from overheating and damage.

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