ABB HESG112548R12 NWX511A-2R Redundant Control Module

1. Product Overview

The ABB HESG112548R12 / NWX511A-2R Redundant Control Module is a high-reliability redundancy module used in ABB industrial automation and process control systems.
It works with the main controller to provide redundant backup control, enabling automatic and rapid failover to a standby controller if the primary controller fails. This ensures continuous operation and system stability for critical control applications in distributed control systems (DCS), PAC, and PLC environments.

2. Technical Specifications

• Model: HESG112548R12 / NWX511A-2R

• Type: Redundant Control Module

• Brand: ABB

• Function: Redundancy monitoring and fast switchover

• Applicable Systems: DCS / PLC / PAC distributed control systems

• Redundancy Type: 1:1 dual controller (primary/standby)

• Switchover Time: ≤ 10 ms (fault detection and fallback)

• Communication Interfaces: Industrial Ethernet, fieldbus, control network (system dependent)

• Supported Protocols: Modbus, PROFINET, EtherNet/IP, and system-specific protocols

• Supply Voltage: 24 V DC / 100–240 V AC (depending on system)

• Maximum Power Consumption: < 15 W

• Operating Temperature: -20 ℃ to +60 ℃

• Storage Temperature: -40 ℃ to +85 ℃

• Protection Class: IP20 (installed in cabinet/rack)

• Mounting: DIN rail or rack mount

• Status Indication: LEDs for operating, redundancy, and fault status

• System Integration: Designed to integrate with ABB main CPUs and I/O modules

3. Key Advantages & Features

1. High Availability Redundancy
   Automatically detects controller faults and performs fast switchover to the standby unit to minimize downtime.

2. Fast Switchover Response
   Switchover delay < 10 ms, ensuring minimal impact on real-time control tasks.

3. Protocol Flexibility & Compatibility
   Supports common industrial communication protocols and integrates with DCS, PLC, and PAC systems.

4. Real-Time Status & Diagnostics
   LED status indicators display running, redundant, and fault information for easy field diagnostics.

5. Modular Architecture
   Seamlessly integrates with ABB CPUs and I/O modules, facilitating unified control and maintenance.

6. Industrial Reliability
   Designed for continuous 24/7 operation with strong resistance to electromagnetic interference and harsh conditions.

4. Typical Applications

• Power automation and energy management systems

• Oil & gas, chemical process control

• Pharmaceutical, food, and continuous manufacturing lines

• Large-scale manufacturing automation

• Water treatment and environmental control systems

• Data centers and critical infrastructure redundant control solutions

5. Installation & Usage Notes

1. System Compatibility
   Confirm compatibility with the control system model, communication protocol, and redundancy logic before installation.

2. Power Supply Configuration
   Use dual redundant power supplies or UPS units to improve system availability.

3. EMI & Wiring Practices
   Separate communication and power cables, and use shielded wiring grounded properly to reduce interference.

4. Redundancy Monitoring Setup
   Configure redundancy status monitoring and alarm logic in the controller and supervisory system.

5. Safe Maintenance
   Power down the system before mounting, removal, or maintenance to prevent damage or unintended transitions.

6. Cooling & Ventilation
   Install in a well-ventilated cabinet or rack to avoid excessive heat and ensure module longevity.

The structure and details of the product：

Please make an inquiry for more models

ABB TB820V2-eA 3BSE013208R2

ABB AO810V2-eA 3BSE038415R2

ABB AI820-eA 3BSE008544R2

ABB DI821-eA 3BSE008550R2

ABB AO820-eA 3BSE008546R2

ABB DO802-eA 3BSE022364R2

ABB CI801-eA 3BSE022366R2

ABB DI810-eA 3BSE008508R2

ABB AI845-eA 3BSE023675R2

ABB AI801-eA 3BSE020512R2

ABB DI803-eA 3BSE022362R2

ABB DI802-eA 3BSE022360R2

ABB TB40A-eA 3BSE037760R2

ABB CI840A-eA 3BSE041882R2

ABB TB825-eA 3BSE036634R2

ABB BC810K02-eA 3BSE031155R2

ABB PM866K02 3BSE050199R1

ABB PM861AK02 3BSE018160R1

ABB PM866K01 3BSE050198R1

ABB PM851AK01 3BSE066485R1

ABB TB852 3BSC950263R1

ABB PM864AK02 3BSE018164R1

ABB PM856AK01 3BSE066490R1

ABB TK850V007 3BSC95019R1

ABB SB822 3BSE018172R1

ABB PM860AK01 3BSE066495R1

ABB TB850 3BSC950193R1

ABB TK851V010 3BSC950262R1

ABB TK212A 3BSC630197R1

ABB CI867K01 3BSE043660R1

ABB CI861K01 3BSE058590R1

ABB SB821 3BSE018109R1

ABB TB851 3BSC950194R1

ABB MB801V512 3BSE042257R1

ABB PM861AK01-eA 3BSE018157R2

ABB PM861AK02-eA 3BSE018160R2

ABB PM856AK01-eA 3BSE066490R2

ABB PM866K01-eA 3BSE050198R2 6.13

ABB CI867K01 3BSE043660R2

ABB PM851AK01 3BSE066485R2

ABB PM864AK02 3BSE018164R2

ABB CI854AK01 3BSE030220R2

ABB PM860AK01 3BSE066495R2

ABB PM864AK01 3BSE018161R2

ABB PM866K02 3BSE050199R2

ABB TK807F 3BDM000210R1

ABB PM802F 3BSH000002R1

ABB FI840F 3BSH000033R1

ABB EI813F 3BDH000022R1

ABB AM801F 3BDH000040R1

ABB SD812F 3BDH000014R1

ABB AM811F 3BDH000050R1

ABB TK802F 3BDM000213R1

ABB PM803F 3BDH000530R1

ABB FI820F 3BDH000031R1

ABB FI810F 3BDH000030R1

Other best-selling products：