GE SR469-P5-HI-A20-T: Advanced Motor Management Relay for Industrial Protection and Control

In industrial systems that drive medium-to-large motors, precise protection, monitoring, and control are essential to ensure safe operation and maximum uptime. The GE SR469-P5-HI-A20-T is a high-performance motor management relay from the GE Multilin 469 family, specifically designed to deliver comprehensive protection, diagnostics, and communication capabilities for critical motor applications. 

This article provides an in-depth look at the GE SR469-P5-HI-A20-T, including key features, typical applications, benefits, and why it remains a trusted solution in industrial automation systems worldwide.

Overview of GE SR469-P5-HI-A20-T

The SR469-P5-HI-A20-T is a multifunction motor management relay engineered for monitoring, protecting, and controlling electric motors. As part of the GE Multilin 469 series, this model combines real-time measurement, advanced protection algorithms, and industrial communication interfaces to help safeguard motor assets in demanding environments. 

The suffix in the model — P5-HI-A20-T — indicates:

• P5: 5 A phase current transformer (CT) secondary rating

• HI: High control power range (90–300 V DC, 70–265 V AC)

• A20: Four isolated 4–20 mA analog outputs

• T: Optional Ethernet (10Base-T) communication interface

Core Functions of GE SR469-P5-HI-A20-T

The SR469-P5-HI-A20-T delivers a range of essential motor protection and monitoring functions:

Comprehensive Motor Protection

Includes protection against overloads, unbalanced current, phase loss, ground faults, load loss, and reverse power conditions. These features help prevent motor damage and reduce unplanned downtime. 

Real-Time Measurements

Continuously measures key electrical quantities such as current, voltage, power, and frequency, enabling accurate system monitoring and control. 

Enhanced Diagnostics

Event recording, fault history, and advanced diagnostic data support faster troubleshooting and effective maintenance planning. 

Communication and Integration

Supports multiple communication protocols including Modbus RTU and Modbus TCP/IP via the Ethernet port, enabling integration with SCADA, DCS, and PLC systems for centralized monitoring and control. 

Key Features of GE SR469-P5-HI-A20-T

The SR469-P5-HI-A20-T is packed with features that make it ideal for industrial motor management:

• Wide Control Power Range
  Operates reliably with a broad supply voltage scope for flexible deployment. 

• High-Accuracy CT Inputs
  Suitable for precise motor current measurement and fault evaluation. 

• 4-20 mA Analog Outputs
  Standard analog outputs allow key parameters to be transmitted to external systems for trending and analysis. 

• Enhanced Display & Interface
  Front panel LCD and keypad provide local metering and easy configuration.

• Industrial Connectivity
  Ethernet and serial ports support flexible network integration, remote configuration, and data exchange with automation systems. 

Typical Applications

The GE SR469-P5-HI-A20-T is widely used across heavy industries where motor reliability and protection are crucial:

• Water & Wastewater Treatment – Pump and motor protection for critical water systems

• Oil & Gas – Compressor, booster, and process motor protection

• Mining & Metals – Crusher, conveyor, and mill motor monitoring

• Manufacturing – High-power motors in production lines and material handling

• Power Generation – Auxiliary motors such as fans, pumps, and service drives 

Benefits of the GE SR469-P5-HI-A20-T

Implementing the SR469-P5-HI-A20-T offers several operational advantages:

Improved Motor Reliability

By detecting abnormal conditions and reacting quickly, the relay helps prevent costly motor failures and downtime. 

Enhanced Operational Visibility

Real-time measurements and 4-20 mA outputs provide actionable insight for control systems and engineers. 

Seamless Integration

Ethernet plus serial communication support enables smooth integration into modern automation networks. 

Advanced Diagnostics

Event logging and detailed fault records reduce troubleshooting time and support predictive maintenance strategies. 

Why Choose GE SR469-P5-HI-A20-T

The GE SR469-P5-HI-A20-T stands out for its combination of precision motor protection, flexible communication, and robust industrial design. Its wide control power range, analog outputs, and comprehensive protection functions make it suitable for a variety of heavy-duty applications where uptime and safety are priorities. 

Engineers and system integrators value this relay for its performance and reliability in demanding industrial environments. Whether protecting critical infrastructure or optimizing motor performance, the SR469-P5-HI-A20-T delivers dependable results.

Conclusion

The GE SR469-P5-HI-A20-T is an advanced motor management relay designed to protect, monitor, and control medium-to-large industrial motors with high precision. With its comprehensive protection algorithms, strong communication capabilities, and real-time diagnostics, it enhances system reliability and operational visibility. 

For facilities seeking a complete motor protection solution with modern connectivity and industrial resilience, the SR469-P5-HI-A20-T offers performance, flexibility, and long-term value.