ABB A300-30-22 Output module

ABB Electronic Overload Relays Overview

ABB electronic overload relays are primarily used for motor overload and phase loss protection, providing reliable and accurate protection for motors. They are used in conjunction with contactors to form compact

 starter solutions.

Product Detailed Description

• Function:

• Detects motor overload current.

• Detects phase loss.

• Disconnects motor power when overload or phase loss is detected.

• Provides multiple trip classes and reset options.

• Features:

• Electronic design provides precise protection.

• Adjustable current setting range.

• Temperature compensation function.

• Various installation and connection methods.

Product Parameters

• Current Setting Range:

• Varies by model.

• Trip Class:

• Provides multiple adjustable trip classes.

• Input Voltage:

• Varies by model.

• Auxiliary Contacts:

• Normally open (NO) and normally closed (NC) contacts.

• Please refer to the official ABB product manual for specific parameters.

Product Advantages

• Reliable Motor Protection:

• Provides precise overload and phase loss protection, extending motor life.

• Easy to Build Starter Circuits:

• Works with ABB contactors for easy installation and connection.

• Reduce Spare Parts Costs:

• Multiple adjustable trip classes are available in the same product.

• Flexible Installation:

• Provides separate installation kits and remote control reset functions.

Precautions

• Correct Selection:

• Select the appropriate overload relay based on the motor's rated current and application.

• Correct Installation and Wiring:

• Install and wire according to the requirements of the product manual.

• Regular Inspection:

• Regularly check the relay's operating status to ensure it is operating normally.

• Environmental Conditions:

• Pay attention to the temperature, humidity, and other conditions of the working environment.

Product Applications

• Motor Control:

• Used for overload and phase loss protection of various motors.

• Industrial Automation:

• Used for motor protection in automation systems such as production lines and mechanical equipment.

• Heating, Ventilation, and Air Conditioning (HVAC):

• Used for the protection of motors such as air conditioners and fans.

• Water pump control.

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