2981842

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Part Status:	Active

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Introduction of Power Relays, Over 2 Amps

Power relays are electromechanical devices which are used for controlling and managing electrical power. They are used within a variety of industrial, commercial, and residential applications to switch electrical power on and off, as well as for protection against surges and overloads. They are also used for controlling the location of a device in a power system, and for controlling temperature and humidity.

The 2981842 Power Relay

The 2981842 power relay is a double pole, double throw (DPDT) power relay with a rated current up to 2 ampere. It has a plastic housing and can be mounted on DIN rail or on horizontal and vertical mounting surfaces. It can be used in combination with switches or relays with the same standard spacing.The 2981842 power relay has two operating coils and two sets of contacts. One of the contact sets is a normally open contact and the other is a normally closed contact. When the relay is energized, the normally open contact will close and the normally closed contact will open. When the relay is de-energized, the normally open contact will open and the normally closed contact will close. The 2981842 power relay has a set of external terminals for the coils and a set of foot-mounted terminals for the normally open contacts and the normally closed contacts. The relay also has a green LED which is illuminated while the relay is energized.

Application of the 2981842 Power Relay

The 2981842 power relay can be used in a variety of applications, including:• Industrial applications such as automated manufacturing processes. • Motor control applications.• Building automation systems.• Security systems.• Heating, ventilating, and air conditioning (HVAC) systems.• Lighting control systems.• Fire alarm systems.

Working Principle of the 2981842 Power Relay

The working principle of the 2981842 power relay is simple. The relay is energized by applying a voltage across the relays’ coil terminals. When the voltage is applied, the coil is energized and a magnetic field is created. This magnetic field attracts the armature which closes the normally open contact and opens the normally closed contact. When the voltage is removed, the magnetic field is destroyed and the armature is released. This causes the normally open contact to open and the normally closed contact to close. The LED will also turn on or off depending on the status of the relay.

Conclusion

The 2981842 power relay is a versatile and reliable device for controlling and managing electrical power. It has a two pole, double throw (DPDT) switch configuration and can be used in a variety of applications including industrial, commercial, and residential applications. The 2981842 power relay is easy to install and has a low power consumption making it suitable for battery operated systems. It has a simple working principle and the contacts can be externally wired to create a variety of control schemes.

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