ABB EB02B/HESG446889R0004 Digital Input Module

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• 1. Product Overview

  The ABB EB02B/HESG446889R0004 is an industrial digital input (DI) module, used to collect field switch signals or sensor signals and transmit them to a PLC or automation control system. It enables centralized monitoring and processing of digital signals. The module features high-speed sampling and industrial-grade reliability, suitable for automation, building management, energy management, and manufacturing systems.

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  2. Detailed Technical Specifications

  • Model: EB02B/HESG446889R0004

  • Module Type: Digital Input (DI)

  • Input Channels: 8 or 16 channels (depending on model)

  • Input Type: DC or AC (model dependent: DC 24 V / AC 230 V)

  • Input Voltage Range: DC 24 V ±20 % or AC 230 V ±10 %

  • Input Current: ≤ 6 mA per channel (DC input)

  • Response Time: ≤ 2 ms

  • Isolation: Electrical isolation between channels

  • Bus Interface: Supports ABB automation bus or fieldbus (PROFIBUS/Modbus optional)

  • Operating Temperature: –25 ℃ to +60 ℃

  • Storage Temperature: –40 ℃ to +85 ℃

  • Protection Class: IP20 (mounted inside control cabinet)

  • Mounting: 35 mm DIN rail

  • Standards & Certification: IEC 61131, CE

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  3. Advantages & Features

  • High reliability for stable digital signal acquisition

  • Fast response time ≤ 2 ms for rapid signal capture

  • Channel isolation to prevent interference and protect control system

  • Modular design for easy installation, expansion, and maintenance

  • Strong compatibility with ABB automation bus and common fieldbus protocols

  • LED indicators per channel for easy troubleshooting

  • Compact design saves panel space

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  4. Typical Application Areas

  • Digital signal acquisition in industrial automation

  • PLC control system input expansion

  • Building automation and energy management systems

  • Conveyor, pump, and fan control

  • Smart manufacturing and Industry 4.0 systems

  • Instrumentation and control cabinet signal acquisition

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  5. Precautions & Installation Notes

  • Verify input voltage and signal type match module specifications before installation

  • Ensure DIN rail mounting is secure to prevent vibration affecting signal acquisition

  • Ensure terminal connections are tight to avoid signal faults

  • Avoid strong electromagnetic interference; add shielding or filtering if necessary

  • Regularly check LED indicators to detect abnormal signals

  • Install module inside a well-ventilated control cabinet to prevent overheating

  • Avoid exceeding rated input voltage or current

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The structure and details of the product：

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