CC185/4SA500

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Contactors (electromechanical) play a critical role in controlling and switching electrical power and current in industrial production systems. CC185/4SA500 is one of the most commonly used contactors. This article pertains to the CC185/4SA500 application field and working principle.

Application field

The CC185/4SA500 contactor is typically used in motor control centers and other motor control applications. This device is suitable for use in general ventilation systems, air-conditioning systems, and other general-purpose switching applications up to and including 7.5+ hp.

The CC185/4SA500 contactor is also used in high-power, long-distance transmission in industrial power systems, as well as in various industrial control systems. It has been designed to be used in motor control applications up to 7.5+ hp in the single pole configuration. The contactor is also suitable for use in applications involving the switching of voltage up to 600 volts in alternating current.

The CC185/4SA500 contactor meets all UL and CSA standards, making it safe for use in standard and wet applications. The contactor has been tested and proven to withstand heavy vibrations. The device is also tested to NEMA 4X and NEMA 7 rated wet environments and can operate in temperatures ranging from -20°C to +85°C.

Working principle

The CC185/4SA500 contactor is an electrical appliance with a rated control voltage of 24 volts AC or DC. It is designed for switching large currents in motor circuits as well as operating safety circuits, such as emergency stop circuits, undervoltage relays, etc. The contactor is made up of two main parts: the stationary contactor which remains in place and the moving contactor which moves when a current is passed through it.

The contactor has two sets of contacts: the main contact and the auxiliary contact. When the main contact is closed, the moving contactor engages with the stationary contactor, completing the circuit and allowing current to flow. When the main contact is opened, the moving contactor disengages from the stationary contactor, cutting off the current.

The contactor is activated by a mechanical system or an electromagnetic system. In the mechanical system, the contactor is activated when the plunger is activated by a spring or a lever. In the electromagnetic system, the contactor is activated by an electromagnet; when current is applied to the electromagnet, it creates a magnetic field which pulls the plunger and activates the contactor.

The CC185/4SA500 contactor is an efficient and reliable device for controlling large electrical loads. It is suitable for use in a wide variety of electrical systems and can be used in motors with loads up to 7.5+ hp. With its UL and CSA safety certifications, the contactor is a safe and secure solution for motor control applications.

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