CC85SA24

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Part Status:	Active

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Introduction

Contactors (Electromechanical) are devices which are used to control the flow of electrical current in electrical power systems. They are most commonly used to switch high voltage electrical systems on and off. The CC85SA24 model is a type of contactor which is manufactured by ABB and is utilised in a wide range of industries for a variety of applications. This article will explore the application field and working principle of the CC85SA24 contactor.

Application Field

The CC85SA24 contactor is designed for switching and controlling a small motor or a semiconductor device. It is suitable for many types of induction motors, such as asynchronous and synchronous motors, and for applications which demand frequent starting, stopping and reversing of the motor.The contactor can be used in wide range of industries from the automotive sector through to HVAC and hazardous location installations. It is suitable for switching currents up to 85A (AC and DC) and have been tested to IEC 60947-5-1 and can be used in applications up to 50kW.

Working Principle

The CC85SA24 contactor consists of an electromagnet, a set of electrical contacts, and a control coil connected to the electromagnet. When an electrical current is applied to the coil, the electromagnet creates a magnetic field which then attracts the contacts and brings them together, thus closing the circuit and allowing the current to flow. When the current is removed from the coil, the electromagnet turns off and the contacts are released, thus opening the circuit and stopping the flow of current.The contactor is designed with an adjustable spring operating mechanism, which helps to adjust the contact force to ensure that the contacts open and close reliably. To optimise the functionality of the contactor, ABB offers accessories such as auxiliary isolation contacts, and surge protectors.

Conclusion

The CC85SA24 contactor is a reliable and efficient electromechanical device which is used widely across a variety of industries to control the flow of electrical current in electrical power systems. It can handle switching currents of up to 85A and is suitable for applications up to 50kW. The contactor is designed with an adjustable spring operating mechanism to optimise the contact force and ensure reliable operation. ABB also offers a range of accessories to enhance the functionality of the contactor.

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