DRA3R48C4

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A contactor (solid-state) is a device used to control electrical circuits, making and breaking connections. The device is also known as a load-breaking switch or a current controller. It uses solid-state components to control the switching of a circuit and is used in many industrial, commercial and domestic applications. It also has a wide range of applications in high-voltage motors, lightning protection, industrial control and telecommunications.

The DRA3R48C4 is a three-phase, full rated AC contactor, rated at 480VAC-400V (50/60 Hz), IEC rated, 50A/20HP. It provides a wide range of options for controlling the switching of three-phase motors. The contactor is mechanically and electrically designed to handle the load current, which is proportional to the size of the motor. It features an open-frame contactor design, heavy-duty surge suppression, magnetic trip protection and surge loading protection.

The Contactors (Solid State) unit is designed to operate at a wide range of operating temperatures, from -55 to 85oC. It also has an overload thermal protection unit, which will trip and shut off the contactor if it exceeds specified temperature. The contactor also has a wide range of contact ratings, from 30A to 100A. It is designed to be installed in a variety of panel configurations and is UL listed, CE approved, IEEE certified and NEMA recognized.

The working principle of the Contactors (Solid State) is based on the principle of relay operation. It works on the principle of voltage controlled current. When the incoming voltage is increased, the current increases and flows through the contact points. As the voltage is increased, the contact points open and the current is released, thus controlling the load current. A thermal relay, which is used to protect the contactor, trips when the load current exceeds its rated value and shut off the contactor.

The Contactors (Solid State) unit can be used in many applications, such as in lighting, fans, pumps, heating, air-conditioning, and motors. It is also used in industrial control and telecommunication applications, and also to control the switching of electrical circuits for residential and commercial applications. It can be used to control the power flow between two or more circuits in a single device. It also provides overload protection, surge protection, and is designed to be mounted in either indoor or outdoor panel enclosures.

The Contactors (Solid State) unit can also be used in many industrial applications, such as in electric motors, clean energy, variable frequency drives, HVAC and process applications. It is also used in lightning protection and medium voltage applications, and provides a reliable means of controlling the switching of high voltage motors.

The Contactors (Solid State) can be used to reduce energy costs by providing energy saving control of electrical circuits. It is designed to provide easy installation, and is UL listed and NEMA recognized. It is suitable for installation in industrial environments, and has a wide range of applications in residential and commercial applications. It can also be used in telecommunications, security and automation applications.

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