ABB 500MBA01 Master Unit for RTU500 Series
Part Number: 1MRB150003R0002
Alternative/Related Part Number: 1MRB200053/L
The ABB 500MBA01 is a high-performance Master Unit designed as the central processing core for the versatile ABB RTU500 series. As a critical component in automation and control systems, this main module, with order code 1MRB150003R0002, delivers exceptional reliability, powerful data handling, and flexible communication capabilities required in the most demanding industrial environments.
Product Overview
The 500MBA01 Master Unit serves as the brain of the Remote Terminal Unit (RTU), executing automation tasks, managing communication protocols, and processing data from connected I/O modules. It is engineered for critical applications in electrical substation automation, power generation, and process control industries where uptime and data integrity are paramount. Its modular design within the RTU500 platform allows for scalable and customized solutions tailored to your specific project needs.

Key Features & Benefits
- Powerful Processing: Equipped with a robust processor to handle complex logic, data logging, and communication tasks simultaneously without compromising performance.
- Versatile Communication: Features multiple communication ports (e.g., Ethernet, Serial) to seamlessly integrate with SCADA systems, IEDs (Intelligent Electronic Devices), and other third-party devices.
- Multi-Protocol Support: Natively supports a wide range of standard industry protocols, including IEC 60870-5-101, IEC 60870-5-104, DNP3, and Modbus, ensuring interoperability.
- Modular & Scalable: As part of the RTU500 series, it allows for easy expansion with various I/O modules, enabling a tailored solution that can grow with your operational requirements.
- Robust and Reliable: Designed for harsh industrial and utility environments, offering high electromagnetic compatibility (EMC) and a wide operating temperature range for maximum reliability.
- Enhanced Security: Incorporates security features to protect critical infrastructure against unauthorized access and cyber threats.

Technical Specifications
Feature |
Specification |
Product Model |
500MBA01 Master Unit |
Order Code |
1MRB150003R0002 |
Product Family |
RTU500 Series |
Functionality |
Main Processing & Communication Module |
Communication Ports |
Ethernet (TCP/IP), Serial (RS-232/RS-485) |
Supported Protocols |
IEC 60870-5-101/104, DNP3, Modbus RTU/TCP, etc. |
Operating Temperature |
-25°C to +70°C (Extended ranges may be available) |
Power Supply |
Typically 24-60 V DC (verify with datasheet) |
Dimensions |
Standard DIN rail mountable module for RTU500 rack |
Certifications |
CE, IEC standards for industrial control equipment |
Applications
- Electrical Substation Automation: Monitoring and controlling circuit breakers, transformers, and other substation assets.
- Power Generation: Managing data from wind farms, solar fields, and hydroelectric plants.
- Distribution Network Management: Automating feeder switches, reclosers, and fault detection systems.
- Industrial Process Control: Integrating and controlling processes in water/wastewater treatment, oil & gas, and manufacturing facilities.
- Rail and Transportation: Monitoring and controlling traction power and trackside equipment.
For pricing, availability, and technical support for the ABB 500MBA01 (Part No. 1MRB150003R0002), please contact our sales team. We provide global shipping and can assist you in configuring the perfect RTU solution for your project.