CDC22-24

Contactors (electromechanical) are used for switching heavy electrical loads like motors and lighting fixtures. They are also used to control multiple circuits, which makes them suitable for industrial applications. CDC22-24 are high-power contactors designed for three-phase applications from 10A to 250A at 600V AC. The contactors are designed with inherent safety features like over voltage, under voltage and short circuit protection.

CDC22-24 Application Field

CDC22-24 contactors are suitable for all types of general purpose applications including lighting loads, switchgear and motor starters. It is used for controlling AC motors, connecting or disconnecting lighting circuits, pilot devices, air conditioners, and other AC loads. The contactors are used for AC3 duty, and they can control, switch and protect AC motors and other loads.

CDC22-24 Working Principle

The operating principle of a contactor is based on the interaction between two magnetic fields. Inside the contactor, an electrical coil is used to create a magnetic field when energized. This magnetic field interacts with another magnetic field inside the contactor. The contactor has a spring loaded armature that is positioned and held when a magnetic field is applied. When the coil is energized, the armature moves towards the contacts and closes the circuit.

CDC22-24 contactors are designed with several components including an electrical coil, two sets of contacts, an armature, and a set of springs. When the electrical coil is energized, the electromagnetic field generates a current that interacts with the second magnetic field inside the contactor. This interaction causes the armature to move and the contacts to close, allowing current to flow. The armature is held in position by springs, and when the current is turned off, the springs reset the armature to the original position and the contacts open, inhibiting current flow.

Conclusion

CDC22-24 is a high-power contactor suitable for controlling AC motors, connecting or disconnecting lighting circuits, air conditioners, and other AC loads. It is designed with inherent safety features like over voltage, under voltage and short circuit protection. The contactor works on the principle of two magnetic fields interacting with each other, where the armature moves to close the contacts and enabling current to flow. When the current is turned off, the springs reset the armature to the original position and the contacts open, inhibiting current flow.