CC50LA220

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Contactors (Electromechanical): CC50LA220 Application Field and Working Principle

Contactors are electromechanical devices that are used to open or close an electrical circuit. They are designed to control higher power circuits that are not suitable for relays or switches. In this article, we will explore the application field and working principle of the CC50LA220 contactor.

Application Field

The CC50LA220 contactor is a sister product of the CC50LA210 contactor. It is designed to be used mainly in the field of high voltage switching. It is able to switch loads of as high as 2700V AC-3. Typical applications for this contactor include lighting, heating, motor circuits as well as power electronic equipment.

Working Principle

The CC50LA220 contactor consists of an electromagnet that is wired to a control circuit. This electromagnet is a complex combination of an iron core and windings. When current is passed through the windings, it creates a magnetic field in the iron core. The iron core then pulls down a trip armature connected to a set of contact-points. The contact-points then close, creating an electrical path that allows current to flow through the circuit.

When the control circuit is switched off, the magnetic field in the iron core is reduced, and the trip armature returns to its original open position. This opens up the contact-points, breaking the electrical path and interrupting the current flow.

The CC50LA220 contactor also features an anti-surge coil wired to the contactor that protects the circuit from surges of current. The anti-surge coil also extends the life of the contactor by dissipating any electrical energy not used in the contactor itself.

Conclusion

The CC50LA220 contactor is an electromechanical device designed to control a high voltage switching circuit. This contactor utilizes an electromagnet to open and close the contacts to the circuit, as well as an anti-surge coil to protect it from surges of current. This contactor is typically used in lighting, heating and motor circuits as well as in power electronic equipment.

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