The A201K2BW is a definite purpose contactor manufactured by Eaton / Cutler Hammer. Definite purpose contactors are electromechanical switches specifically designed for controlling HVAC, refrigeration, and other similar applications. They are typically used to switch motors, compressors, and resistive heating loads.

Applications

• HVAC systems: Controlling compressors, fans, and pumps in air conditioning and heating systems.
• Refrigeration equipment: Switching compressors and other components in refrigerators, freezers, and ice machines.
• Lighting control: Controlling large lighting loads in commercial and industrial buildings.
• Motor control: Starting and stopping electric motors in various applications.
• Resistive heating: Controlling electric heating elements in furnaces and other heating systems.

Features

• Electromechanical switching: Uses electromagnetic force to open and close contacts.
• Definite purpose design: Specifically designed for HVAC and refrigeration applications.
• High current carrying capacity: Capable of switching large electrical loads.
• Multiple poles: Available in various pole configurations (e.g., 1-pole, 2-pole, 3-pole).
• Compact size: Designed for easy installation in control panels and equipment.

Benefits

• Reliable switching: Provides dependable switching performance in demanding applications.
• Long lifespan: Designed for extended service life with minimal maintenance.
• Safe operation: Incorporates safety features to protect against electrical hazards.
• Easy installation: Simple to install and wire in control panels.
• Cost-effective solution: Offers a competitive price for HVAC and refrigeration control applications.

Additional Details

The A201K2BW contactor is rated for a specific voltage and current, which must be carefully considered when selecting it for a particular application. The coil voltage also needs to match the available control voltage. The number of poles indicates how many separate circuits the contactor can switch. The contactor typically includes auxiliary contacts, which can be used for interlocking or status indication.

Proper wiring practices should be followed when installing the contactor. The terminals should be tightened to the specified torque to ensure a secure connection. Overload protection should be provided to protect the contactor from damage due to excessive current. Regular inspection and maintenance are recommended to ensure reliable operation. The contactor's specifications are crucial for its safe and proper integration into the system.