Woodward MRI4A0AB High Performance Feeder Protector

Product Introduction

The Woodward MRI4A0AB High Performance Feeder Protector is an advanced protective relay designed to safeguard electrical distribution feeders from abnormal conditions, including overcurrent, overvoltage, undervoltage, and phase imbalance. It combines fast digital processing with reliable sensing and trip logic to ensure immediate response to faults, minimizing damage to critical industrial and power generation equipment. This device is ideal for industrial, commercial, and utility applications where system reliability, operational safety, and precise monitoring are essential. The MRI4A0AB integrates advanced diagnostic capabilities, configurable settings, and flexible communication interfaces to provide real-time system insights and support preventive maintenance.

Product Parameters

Applications

The MRI4A0AB High Performance Feeder Protector is used in critical electrical distribution and protection systems, including:

• Industrial Power Plants – protecting generator outputs and electrical feeders from fault conditions.

• Utility Distribution Networks – safeguarding medium and low-voltage feeders in electrical grids.

• Commercial Buildings – ensuring safe and reliable power distribution across multiple loads.

• Marine and Offshore Installations – providing protection for electrical feeders under harsh marine conditions.

• Renewable Energy Systems – monitoring and protecting feeders in hybrid or distributed energy systems.

Its fast response and reliable protection help prevent equipment damage, ensure operational safety, and reduce downtime.

Advantages

• Fast and Accurate Protection: Trip response occurs within milliseconds, minimizing damage to equipment.

• Multiple Protection Functions: Includes overcurrent, overvoltage, undervoltage, and phase imbalance detection.

• Advanced Digital Algorithms: Reduces false trips and ensures reliable operation.

• Flexible Communication Options: Supports Modbus RTU, CAN, and optional Ethernet/IP for integration with SCADA or PLC systems.

• Robust Industrial Design: Aluminum housing with IP65 rating protects against dust, moisture, and vibration.

• Remote Monitoring and Diagnostics: Provides event logs, alarms, and operational status for preventive maintenance.

• Versatile Mounting: DIN rail or panel mounting supports various installation requirements.

• Compliance Certified: CE, UL, and RoHS certifications ensure safe use in industrial and utility applications.

FAQ

1. Which electrical parameters does the MRI4A0AB monitor?
   It monitors current, voltage, phase balance, and frequency to detect abnormal conditions and ensure safe operation of feeders.

2. What is the typical trip response time?
   The device responds within 50 milliseconds to minimize equipment damage and maintain system safety.

3. Which communication protocols are supported?
   Modbus RTU, CAN, and optional Ethernet/IP allow integration with SCADA and PLC systems.

4. What is the required input voltage for operation?
   Nominal 24–60 V DC input ensures reliable performance in industrial environments.

5. How are trips and alarms indicated?
   LED indicators show power, trip, and alarm status, and detailed event information is available via communication interfaces.

6. Can the MRI4A0AB protect multiple feeders simultaneously?
   Yes, it can monitor and provide independent protection for multiple feeder circuits.

7. What mounting options are available?
   DIN rail and panel mounting provide flexible installation options.

8. Is it suitable for harsh industrial environments?
   Yes, the IP65-rated housing protects against dust, moisture, and vibration.

9. Can it integrate with remote monitoring systems?
   Yes, it provides real-time status and event logs to SCADA or PLC systems.

10. What certifications does the MRI4A0AB have?
    CE marked, UL listed, and RoHS compliant for safe use in industrial applications.

Recommended Related Models (Same Series or Compatible)

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FAQ

1. Which electrical parameters does the MRI4A0AB monitor?
   It monitors current, voltage, phase balance, and frequency to detect abnormal conditions and ensure safe operation of feeders.

2. What is the typical trip response time?
   The device responds within 50 milliseconds to minimize equipment damage and maintain system safety.

3. Which communication protocols are supported?
   Modbus RTU, CAN, and optional Ethernet/IP allow integration with SCADA and PLC systems.

4. What is the required input voltage for operation?
   Nominal 24–60 V DC input ensures reliable performance in industrial environments.

5. How are trips and alarms indicated?
   LED indicators show power, trip, and alarm status, and detailed event information is available via communication interfaces.

6. Can the MRI4A0AB protect multiple feeders simultaneously?
   Yes, it can monitor and provide independent protection for multiple feeder circuits.

7. What mounting options are available?
   DIN rail and panel mounting provide flexible installation options.

8. Is it suitable for harsh industrial environments?
   Yes, the IP65-rated housing protects against dust, moisture, and vibration.

9. Can it integrate with remote monitoring systems?
   Yes, it provides real-time status and event logs to SCADA or PLC systems.

10. What certifications does the MRI4A0AB have?
    CE marked, UL listed, and RoHS compliant for safe use in industrial applications.

Recommended Related Models (Same Series or Compatible)

Popular Woodward Models (Same Brand)

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