ABB 3AUA0000128978 Control Module

1. Product Overview

The ABB 3AUA0000128978 Control Module is a core control unit for industrial automation systems and low-voltage electrical equipment. It handles signal acquisition, logic processing, and output control, and can be integrated with circuit breakers, contactors, and relays for reliable automation control. The compact design allows easy installation and maintenance, suitable for complex industrial and power control environments.

2. Technical Specifications

• Model: 3AUA0000128978

• Type: Control Module

• Supply Voltage: 24 V DC

• Input Type: Digital input

• Output Type: Digital / control output

• Maximum Output Current: 1 A per channel

• Operating Temperature: 0°C to +55°C

• Storage Temperature: -25°C to +70°C

• Mounting: DIN rail or slot mount

• Interface Type: Screw terminal or plug-in interface

• Protection Rating: IP20

• Dimensions (W×D×H): ~120 × 60 × 85 mm

• Weight: ~0.42 kg

3. Advantages and Features

• Reliable control capability: Handles signal acquisition, logic processing, and output control for precise automation.

• Modular design: Compact size allows quick installation or replacement, improving maintenance efficiency.

• High compatibility: Integrates with ABB circuit breakers, contactors, relays, and other control modules.

• Industrial-grade durability: Designed to withstand temperature, vibration, and harsh industrial environments.

• Flexible interface: Screw terminals or plug-in connections allow easy wiring and system expansion.

4. Typical Applications

• Control of low-voltage circuit breakers and contactors

• Industrial automation production line control

• PLC / DCS logic processing

• Power distribution and control panels

• Machinery automation control

5. Installation & Usage Notes

• Ensure module supply voltage is 24 V DC before installation.

• Secure all wiring to prevent loose connections or short circuits.

• Installation environment should comply with IP20 standards, avoiding excessive moisture or dust.

• Keep operating temperature within 0°C to +55°C.

• Regularly check input/output signals to ensure proper system operation.

The structure and details of the product： ​

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