CC85LA220

Contactor (Electromechanical)

CC85LA220 Application Field and Working Principle

CC85LA220 contactor is a tool used to control and make/break electric circuits. It makes or breaks the connection between two terminals in electrical systems under the control of lower power. For applications involving AC, the contactor structure includes a main contact, an auxiliary contact and an electromagnetic coil. It is widely used in industrial automation, motor starters, heaters, lighting and other HVAC systems.

The working principle of a CC85LA220 contactor is based on the principle of electromagnetic induction. A coil is used to induce an electromagnetic field when the power supply is connected. When an electric current is turned on, the electric field forms a bridge between the current loop and the two terminals. This bridge is responsible for the opening or closing of a switch.

The contactor contains two sets of contacts. When the contacts are opened, they are where the AC line voltage enters the contactor. When the contacts are closed, the two sets of contacts become the current loop, and the contactor carries the current of the power supply.

The design characteristics of the CC85LA220 contactor are able to handle three-phase circuits up to 600VAC, 60 Hz. It supports a maximum current of 220 amps and a maximum rating of 10.5KW. It also provides protection against electromagnetic interference to ensure the stability of the device.

The mechanism of a contactor is based on an electromagnet with an inductive coil. It is made up of three components: the armature, the electrode and the core. The armature and the core are magnetically engaged while they are not in contact. When the power supply is activated, an electric current flows through the coil and induces a magnetic field. This magnetic field is responsible for the opening and closing of the switch.

The electrodes of a contactor are composed of magnetic material and act as contact points for AC and DC currents. The magnetic material helps control the size of the electric arc when the main contact opens and closes. The gap between the contact points is adjustable and can be adjusted to handle different current ratings.

The structure of the CC85LA220 contactor is designed for protection against short-circuiting and overload. Overload protectors are designed to disconnect the power supply when a fault occurs. The contactor also monitors the current flowing through it. If the current exceeds the rated value, the contactor will automatically shut off the supply.

The CC85LA220 contactor is designed to be reliable, efficient and secure. It is an effective way of controlling a circuit and providing protection from overloads. Its features make it suitable for a variety of applications such as industrial automation, motor starters, heaters, lighting and other HVAC systems.