ABB HESG324442R112 Processor Unit Relay Card

• 1. Product Overview

  ABB HESG324442R112 Processor Unit Relay Card is a critical control module for power protection and automation systems. It integrates a high-performance processor with multiple relay interfaces to monitor and control relay operations, providing fault indication, signal switching, protection output, and system alarms.

  HESG324442R112 is compatible with ABB protection relay platforms and distribution automation systems, delivering fast response, high reliability, and scalability to ensure safe and stable operation of power and automation equipment.

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  2. Main Technical Data

  General

  • Product type:
    Processor Unit Relay Card

  • Model:
    HESG324442R112

  • Applicable equipment:
    ABB relays and distribution automation systems

  • Functions:
    Relay signal control, alarm output, status monitoring

  • Interface type:
    Multi-relay outputs, digital I/O

  • Supply voltage:
    24–60 V DC (typical)

  Electrical Characteristics

  • Relay output capacity:
    5 A @ 250 V AC / 30 V DC (typical)

  • Relay operating time:
    ≤ 10 ms (typical)

  • Signal interfaces:
    Multiple relay outputs and digital input ports for status detection

  • Communication interface (optional):
    Supports Modbus, Profibus, Ethernet/IP (depending on system configuration)

  Mechanical & Environment

  • Mounting:
    Card insertion, suitable for ABB control cabinet/rack

  • Dimensions (mm):
    Standard card module for rack insertion

  • Operating temperature:
    -20°C to +70°C

  • Protection rating:
    IP20 (inside control cabinet)

  • Housing:
    Flame-retardant plastic and metal combination

  Standards & Certification

  • Compliance:
    IEC 60255, IEC 60947 series

  • Operating environment:
    Power system protection, distribution automation, industrial control systems

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  3. Key Advantages and Features

  1. High-reliability relay control
     Provides fast and precise relay operation and output signal control.

  2. Multiple output and input interfaces
     Supports multiple relay outputs and digital inputs for expanded system functionality.

  3. Modular design
     Card-insertion structure allows quick installation, maintenance, and easy replacement.

  4. Industrial-grade durability
     Operates reliably under high temperature, vibration, and industrial environments.

  5. High compatibility
     Seamless integration with ABB protection relays and distribution automation systems.

  6. Fast response and alarm
     Instant-action relays provide rapid fault indication and alarm output, enhancing system safety.

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  4. Typical Applications

  • Power system protection and automation control

  • Distribution automation relay interface expansion

  • Signal output and monitoring in industrial and distribution control cabinets

  • Substation and power plant automation systems

  • Wind, solar, and hydro automation systems

  • Fault monitoring and alarm systems for electrical equipment

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  5. Installation and Application Notes

  1. Verify power and interface compatibility
     Ensure supply voltage and relay interface match before installation.

  2. Proper card insertion and fixation
     Ensure card is securely inserted into the rack with good electrical contact.

  3. Environmental conditions
     Avoid moisture, dust, and corrosive gases; maintain ventilation.

  4. Periodic inspection
     Check relay outputs, card fixation, and status indicators to ensure long-term reliable operation.

  5. Operation and maintenance
     Power off before maintenance or replacement; follow ABB guidelines.

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The structure and details of the product：

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