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CE55NN3A reverse contactor related information

Product overview

The CE55NN3A reverse contactor is an AC contactor for industrial use, mainly used to control the forward and reverse operations of motors and other electrical equipment. Its main function is to realize the reverse operation of the equipment by changing the direction of current in the circuit. It is widely used in industrial automation, metallurgy, papermaking, mining, petrochemical and other fields.

Working principle

The working principle of the reverse contactor is based on electromagnetic attraction. When the coil is energized, the generated magnetic field attracts the contacts to close, thereby connecting the circuit; when the coil is deenergized, the contacts separate under the action of the spring force, cutting off the circuit. By controlling the on and off of the coil, the forward or reverse connection of the circuit can be achieved.

Application scenarios

CE55NN3A reverse contactor is widely used in the following scenarios:

Motor control: used to control the forward and reverse rotation of the motor to achieve forward and reverse rotation of mechanical equipment.

Automated production line: In an automated production line, by controlling the forward and reverse rotation of the motor, the workpiece can be automatically turned over and transported.

Metallurgical industry: In the metallurgical industry, reverse contactors are used to control the forward and reverse rotation of rolling mills to improve production efficiency.

Papermaking industry: In the papermaking industry, the reverse contactor is used to control the forward and reverse rotation of the paper winding machine to realize automatic winding of paper.

Technical parameters

Rated voltage and current

Rated voltage: 24V to 220V, depending on application requirements.

Rated current: It varies according to the specific model and application scenarios. Common ones are 60A, 100A, etc.

Number of poles and contact form

Number of poles: Generally 3 poles or 4 poles, suitable for different electrical control needs.

Contact form: The number of normally open main contacts and normally closed auxiliary contacts varies depending on the model, and is usually equipped with a variety of contact configurations to meet different circuit connection needs.

Working environment temperature and altitude

Working environment temperature: usually between -20¢XC and 50¢XC, some models can adapt to higher temperature environments.

Working altitude: Generally it can be used in environments below 1,000 meters above sea level.

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